Sciencemadness Discussion Board

Lithium from Batteries

Saerynide - 6-7-2004 at 21:22

Today I managed to extract lithium from energizer batteries :D Theres quite alot of Li in there. It is not as scary as I thought it would be. I managed to cut open the battery AND remove enough of the case to pull out the coil without shortcircuiting enough it to cause it to burst into flames. The net has no real documentation of dismembering Li batteries (Theodore Gray has one, but its kinda confusing), so I'll post one here :)

Lemme get some lunch first though :D

[Edit]: Procedure is here :)

Anyone who's not foolish like me, will wear a pair of fireproof gloves. I did it barehanded (cause I didnt have fireproof gloves), but I dont think thats something to be proud of :P
Then get pair of diagonal cutters, and large pair of heavy duty pliers that can firmly grasp the battery, a small pair of long nose pliers, and the optional stuff includes: a hack saw, oil, lotsa dish washing soap (a must if you're using the oil :D)

DO THIS OUTSIDE IN A FIREPROOF PLACE!! :D

I dont have any pics of the procedure cause I had to work kinda fast. Sorry guys :(

First, peel off the wrapper of the battery. You'll notice theres a "neck" (that indented part) near the top of the battery and that the negative terminal IS the ENTIRE CAN (see pic below).


If ANY part of the can touches the positive terminal, you'll see a tiny but bright spark indicating a short circuit. Because of this, we can't open the battery like the conventional carbon batteries where you open and peel from the top. Instead, use the diagonal cutters to cut the top off at the neck while holding the battery with the large pliers (like decapitating the thing ;) ). Do this as quickly as you can because you may be short circuiting the battery. If it continues to short, it'll heat up really badly in a few seconds and may catch fire. Cutting off the top will remove all the stuff in the positive terminal and make life a bit easier. If its too slippery to cut, use the hack saw make a nice rough spot to start cutting.

Once the top's gone, you'll see a plastic ring on top of the inner coil (it's held in place by the remnants of the neck). Cut and then peel away the can using the long nose pliers, starting at the severed neck. Peel off bits until you can easily pull out the coil. Do this carefully and try not to dement the coil or touch the top of the coil, as that will shortcircuit the battery because the coil contains the anode and the cathode.

Unwrap the outter most layer of plastic (its thin and has lines on it). If you want to keep the Li, grab onto a tad of the next piece of plastic (its thicker than the previous one), then dunk the coil into oil and unroll the coil under there using chopsticks or something (its *not* an easy task ;)). Most of the Li will be already dark brown, but some of it that was wound deep in the coil will still be metallic. Some of the dark brown stuff in the coil is very thin and sticks to the plastic. It sinks in the oil and is not Li (thats the iron sulfide and it turns dark green in water). The Li is the thick sheet that floats in the oil. Some other crap in the coil includes a sheet of aluminum foil.

[Edit 2]: Posted some pics :)


Thats the top severed at the neck and the remains of the can after my peeling spree.


The unrolled coil under canola oil. Still some shiny Li floating there.


Lotsa shiny Li :D


Heres the Li foil reacting with water

Cleaning up was NOT fun. I had oil everywhere and enough dishwashing foam in my yard to drown in it :D

[Edit3]: I tried to make the procedure a bit more understandable.

[Edited on 7-7-2004 by Saerynide]

tom haggen - 6-7-2004 at 21:37

What type of solvent did you use for extracting the lithium?

Reverend Necroticus Rex - 6-7-2004 at 22:14

No solvent is needed to extract Li, I just recantly aqquired 5 large Li batteries, the best way I have found of gutting them is to use make a downwards slit for about a couple of cm from the top of the battery, and using long-nosed pliars to curl round the casing and peel it off like the ring-pull on one of those old style corned beef cans.

The problem I have, is not getting the Li out of the battery, but finding something to store it in that it doesn't float to the top
of it :mad:

Saerynide - 7-7-2004 at 01:54

I dont think there is any thing we can use that it wont float on. It has a density of only 0.54ish :o

Reverend Necroticus Rex - 7-7-2004 at 01:58

I am thinking of glueing a long glass rod to the lid of a jar, with a section of a sieve or somesuch mesh spread out over it, i think that would do a good job of keeping the lithium down without displacing too much motor oil.

Great pics Saerynide :D
Now all we need to do, is come up with a good way to melt it into blocks:)

Have you by any chance heard of calcium batteries? apparently they have a calcium metal alloy as one of the electrodes, I think maybe a thread on battery chemistry would be a good idea, as there are just so many goodies to be had from batteries:D


[Edited on 7-7-2004 by Reverend Necroticus Rex]

[Edited on 7-7-2004 by Reverend Necroticus Rex]

Saerynide - 7-7-2004 at 02:38

Mwhehehee.. Battery abuse is always fun (not to mention scary) :D

Great idea about the lithium holding lid :d I'll do that with my next left over battery :D

About melting the Li, Im not sure if thats a good idea. Read this other page of Theodore Gray's. Li tends to explode when melted in ceramic crucibles... Maybe glass will be safe?

And where can we get these calcium batteries?

Reverend Necroticus Rex - 7-7-2004 at 02:44

Don't try melting lithium in glass, I have never actually done it, but from what I have heard, molten lithium has a nasty tendency to melt glass, and produce a big hot fireball in the process:D

As for the calcium batteries, I found one scavenging on my local waste dump for a power source for my Na experiments:D
I never opened it up, but maybe somehow the Ca could be extracted from its alloy, as to how, I have no idea though.:(

Saerynide - 7-7-2004 at 03:03

If it's spent, I doubt there'd be any Ca left in it :(

I dont think any of us should try melting Li :P

And is it just me, or does Li smell really good?? :o Maybe its reacting with the oil...

Hmmm... Im in such a good mood today :D

Reverend Necroticus Rex - 7-7-2004 at 03:07

The dump near where I live has huge piles of quite well charged car and truck batteries, that's what I rely on for electrolysis, since I destroyed my father's car battery charger:D

I wouldnt be too surprised if there was still a fair amount of Ca alloy to be had in those batteries:)

Interesting....Aparently the plates are composed of a Pb/Ca alloy, and the positive grids are at least partially made of silver:D


DAMN!
It looks like there is about 1% or so tops Ca in those batteries, a couple of percent Ag, and about 6% antimony.
Looks like a non starter, but I wonder if a sort of fine spongy lead couldn't be produced by dissolving out the Ca with acid, leaving a sort of fine honeycomb-sponge structure.

[Edited on 7-7-2004 by Reverend Necroticus Rex]

[Edited on 7-7-2004 by Reverend Necroticus Rex]

blip - 7-7-2004 at 17:18

I was wondering when you were going to do this, I almost U2U'ed you. :) I also have done this but I opened it on the wrong side not wanting any chance of shorting, primarily because my needlenose pliers have one tip broken and I don't have many tools to handle it. When I did this, I had a plastic car wax top mostly filled with clear mineral oil (intended as a laxative, with a bit of vitamin e, too) and I immersed the battery in it while working. If I needed to see it up close, I would use a dropper to keep it soaked in oil, and of course I was wearing goggles. I learned soon enough that I couldn't use leather gloves for protection against heat, and besides I would have no idea how hot it was until a spark or flame formed.

I chose to use my mom's latex gloves (she's a nurse so she has boxes upon boxes of them ;)) but after a while they'd soak up some oil and their pores would become visible. I was SOOO freaked out while doing this, not wanting to initiate any undersired reactions. Everytime I did, by shorting or pressing the Li against the black stuff (I thought it was MnO<sub>2</sub> but not sure), I would usually see a red spark and take the battery outside in a glass container full of oil as far from buildings as possible and quit for the night.

I began at the bottom cutting sort of diagonally with an okay pocket knife, dulling it by the time I finished. Next, I cut another slit so that I could grip the point with pliers and pull it to expose some of the innards. I kept pulling away the casing until I had no good place to pull. Too bad it was only partly opened. I got the small Li strip out, but the much larger one was impossible without a small set of scissors to cut the plastic layers so I could get to some Li each time. To say the least it was quite time consuming and I only got a small fraction out in a test tube. My mineral oil allows Li to sink if there are absolutely no bubbles attached, which takes a while. Currently there are crystals forming on the edges as sometimes the top would pop off due to hydrogen (I tried to add a droplet of water to test once and it seems to have sort of dissolved) and when it comes off the 60%+ humidity can get in.

The battery still remains in mineral oil and I'm considering making lithium isopropoxide with some hopefully anhydrous isopropanol just to get rid of it, and to be able to have an alkali alkoxide. I still need to make sure that reaction won't be too violent and won't catch anything on fire. I have 7 more batteries to take apart "the right way", and the entire pack was bought for $20. The reason I took the first battery apart wrong was because my internet connection wasn't very stable and I proceeded to do it anyway after weeks of waiting to see <a href="http://www.rhodium.ws/chemistry/lithium.batteries.html" target="_blank">this page</a> to check the methods.

I had my twin brother always watch me in case I needed something or something really bad happened. I need to get better tools, but the ones I can find at local stores are much too expensive. Perhaps I'll ask my mom or sister to buy me a couple of items. One time my sister came in while I was doing it, and she was mostly fine with it. My older brother however came in later and I felt that I had to show him the reactivity of it so he wouldn't go poking around (like he tends to do) and really hurt himself. By the way, there is a <a href="http://www.sciencemadness.org/talk/viewthread.php?tid=1974" target="_blank">related thread</a>.

Saerynide - 7-7-2004 at 21:46

Oooohhh. Thanks for showing me the Rhodium page. That one always escaped my google searches.

I understand how freaked out you mustve been. I was terrified last time I tried it. As soon as my cutters touched it and I saw the first orange spark, I stuffed the battery into a glass jar and called it a day. That was two weeks ago I think. But yesterday, remembering a line from Theodore Gray's page: "Don't be put off by small fires", I just made myself do it :D

It was acutally safer for me to not use gloves. I didnt have any gloves that were fire proof or that I could rip off easily should they catch fire. I didnt use goggles either. Im so bad :P

And there's no wrong way to dismember it. Its interesting how 5 people all did it their own different way. Pick which ever way works for you :) But I dont recommend Theodore's way though, his battery kept on catching fire ;)

And you're lucky you had someone with you. IMy brother freaked and stayed far away from me as poss...:mad: He almost ran away from me when I showed him the Li :o

About those crystals.... what *are* they? They remind me of how people describe AP. Are you sure they're not peroxides or anything dangerous like that? :o

blip - 8-7-2004 at 10:24

I always refer to rhodium's site if I'm wondering about some reaction. Particularly if you search for "lithium" the first hit will be the battery deconstruction page. It's useful for more than drug synths. I remember the time I read and reread the birch reduction document by mr clean there.

You seemed eerily laid back about the whole thing in your initial post than you are about anything, but at least I know the reason and how careful you were being. Partly why I used gloves was that I kept the battery saturated with oil and bare-handed it would slip right through my fingers. Also, sharp edges in the cut metal would mangle my glove and not my hand. I actually had a glove tear up pretty well when I tried to take it off one night. Having a propylene carbonate and 1,2-dimethoxyethane solution of lithium perchlorate get in a cut is NOT my idea of having a good day. If my gloves did need to be pulled off quickly, I could grip them at the wrist and yank them inside out on a moment's notice. It's not so easily done with those kitchen cleaning gloves that are thicker.

I really doubt that those crystals are peroxides, because really only the other alkali metals form them upon combustion. It's probably just a mixture of oxides and hydroxides, and nitrides if they're brownish black. This would be yet another reason why I would rather deal with lithium than something else. I think it would take rather high pressures of pure oxygen to coax lithium to form peroxides, if it can even be done at all. <a href="http://www.chemguide.co.uk/inorganic/group2/reacto2.html" target="_blank">This page</a> down where it says "Why do some metals form peroxides on heating in oxygen?" explains why some metals form peroxides and others don't (yes they talk about alkaline earth metals but the point is also valid for alkalis, too).

Next time you do this I would recommend having a friend watch you in case something like a burning molten bead of lithium decides to embed itself in your arm when the thing catches fire. I had my twin wearing goggles and gloves and being just as scared as I was. I was doing it inside a store room that gets a bit of air conditioning sometimes just so I would be working in a less humid environment. I wasted a good deal of the metal testing whether it really was it or not, and even burned a small strip of it. I wore thick thick cloth gloves and it took a while to ignite due to the oil coating but burned very quickly and with a spectacular red flame with much oxide being thrown into the air.

tom haggen - 8-7-2004 at 17:12

In your last picture, the lithium doesn't seem to be reacting with the water very violently. No where near as violent as sodium. Do you think there would be a way to synthesize lithium carbonate from the elemental lithium in those batteries?

[Edited on 9-7-2004 by tom haggen]

Reverend Necroticus Rex - 8-7-2004 at 17:17

As the lithium is in a thin foil, you could probably get away with burning strips of it in a chlorine atmosphere, what are you using the LiCL for?

Bugger, sorry, I misread your post as wanting to make LiCl:o

[Edited on 9-7-2004 by Reverend Necroticus Rex]

BromicAcid - 8-7-2004 at 17:30

Lithium carbonate would be an easy one:

2Li(s) + 2H2O(l) ----> 2LiOH(aq) + H2(g)
2LiOH(aq) + CO2(g) ---> Li2CO3(s) + H2O(l)

Filter off your slightly soluble Li2CO3

Or evaporate your LiOH solution and leave the solid out exposed to the atmosphere, it will pick up CO2.

BTW: Good job Saerynide, any future plans for you Li? Oh, and melting in glass, not a good idea, I mentioned it somewhere that molten lithium redily attacks glass emitting green light and melting holes quickly in the glass (possibly with explosion) as it does so.

[Edited on 7/9/2004 by BromicAcid]

tom haggen - 8-7-2004 at 18:02

So reacting lithium with water gives you lithium hydroxide?

sanity gone - 8-7-2004 at 18:03

reacting metal or metal oxides that can displace hydrogen from water will give you the hydroxide.

Reverend Necroticus Rex - 8-7-2004 at 18:07

Reacting any alkali metal with water gives the hydroxide, they skid about on water and from Na up they usually burn, Li skids about and fizzles on water, Na does the same, but is a lot more likely to catch fire.

Na will explode if sufficient amount be present, K is VERY likely to explode,

I havent personally seen Rb and Cs hit water, but from what I have heard, explosion is a certainty and said explosion is extremely violent:D

sanity gone - 8-7-2004 at 18:21

Try some Fr on water, that would be violent. Too bad that there is like no Francium in the world :(

Reverend Necroticus Rex - 8-7-2004 at 18:24

A chunk of francium reacting with water has been one on THE experiments I would most like to see, second only to maybe nitrogen tri-astatide:D

And I don't think "violent" would be sufficient to describe it......

[Edited on 9-7-2004 by Reverend Necroticus Rex]

Saerynide - 8-7-2004 at 18:44

Quote:
Originally posted by tom haggen
In your last picture, the lithium doesn't seem to be reacting with the water very violently. No where near as violent as sodium.

Thats cause I only put about 5 drops of water on it. I didnt want to waste it all :D

Quote:
Originally posted by blip
You seemed eerily laid back about the whole thing in your initial post than you are about anything, but at least I know the reason and how careful you were being.

Sorry if it sounded like I didnt care about anything. Maybe it was the effect of the Li (the Li+ ion messes with your mind). I found myself in a really-happy-for-no-reason-while-not-thinking-about-anything kind of mood for a few hours. You dont know how hard it was to type that first post sensibly :o

tom haggen - 8-7-2004 at 18:46

Is the lithium obtained from those batteries is contaiminated with lead, or any other toxic chemicals? Besides lithium itself being toxic in high concentrations in the blood stream.

[Edited on 9-7-2004 by tom haggen]

[Edited on 9-7-2004 by tom haggen]

BromicAcid - 8-7-2004 at 18:53

I believe electrolytic lithium used in making lithium batteries is of an unusually high purity. I remember reading something on the incredibly stringent measures put into purifying the lithium and keeping the rooms of production clean. So I don't think there is any note worthy lead in the lithium obtained from batteries.

Any other contaimination would be surface contamination and removed by washing the freashly removed lithium strips with oil then acetone.

Cyrus - 8-7-2004 at 21:15

Saerynide, do you think the happy mood you got was because of the Lithium? How much would a person need to ingest to cause that? You were not touching the Li with your hand, were you? :)

This sounds like a lot of fun, got to try it, and I will find my OWN way to open the battery.;)

Good, other people have found Gray's site. It's great.

tom haggen - 8-7-2004 at 21:30

500mg would be a good healthy dose of lithium. You would be better of synthesizing lithium carbonate seeing as how that’s the actual medication doctors prescribe. I would be careful when ingesting internal components of a battery. It just seems like a bad idea.
I find it highly unlikely that someone absorbed a large dose of lithium through skin absorption.

[Edited on 9-7-2004 by tom haggen]

Saerynide - 9-7-2004 at 00:05

I didnt touch it, and I *definately* did not eat it :P It might've been from bits of airborne particles of carbonate or it slowly reacting with the oil and making something volatile? It also could've been from something in the battery and not the Li. There's something in there that smells really sweet and nice (if you take a whiff of the insides of the can, you'll know what i mean). But whatever it was, it wasnt just me :o

And I agree, I really dont think eating anything made from a battery is a good idea :P

thunderfvck - 9-7-2004 at 01:06

I had dreams of extracting lithium for the sole purpose of making LiCO3. However I read that this wasn't a very effective...stress reducer...so I never went through with it. In fact I remmeber someone saying that it wasn't worth my time or something like that. I don't know. Maybe it was here, or the hive, or somewhere else...Anyways, they seemed to know what they were talking about.

I am feeling rather gassy.

tom haggen - 9-7-2004 at 10:20

Quote:

However I read that this wasn't a very effective...stress reducer...


Of course it's not a stress reducer. It's for treating bi-polar disorder. The only effects it would have on someone with out the disease would probably be drowsiness. It's generally avoided as a prescribed medication due to the toxic nature of lithium, and interactions that can happen with serum lithium is already in the blood stream.

[Edited on 9-7-2004 by tom haggen]

[Edited on 9-7-2004 by tom haggen]

blip - 9-7-2004 at 10:39

Quote:
Originally posted by Saerynide:
There's something in there that smells really sweet and nice (if you take a whiff of the insides of the can, you'll know what i mean).


My battery kind of stunk but it did have a detectable sweetish component, so I can see where you're coming from. My mineral oil also had a very slight unpleasant smell to it. I did try to dilute the electrolyte in the oil in case it did react if I screwed up, so I didn't get it full strength. When you hydrolyzed some of your lithium, did you notice the smell of ammonia? I haven't tried, but i think it would be detectable.

One of my chem books shows this guy holding a roll of lithium foil intended for batteries about the size of a roll of film for an old video projector but wider and he had some unrolled onto his glove. In the caption the importance of humidity-free rooms is stressed, and he had a small white mask on. He looks really scared because he was sweating like crazy. I would guess it contained around 100 grams of lithium, but I can't really say because I'm recalling the picture from memory.

Saerynide - 9-7-2004 at 10:56

Yeah it smelled like ammonia when I put some water on it. Made my brother run out of my room :D

I think I anyone would be really scared if they were holding lithium :D Whats the mask for though?

[Edited on 9-7-2004 by Saerynide]

tom haggen - 9-7-2004 at 21:39

I was drying out some LiOH in a glass dish and a white film started developing on the glass. Was my glass dish corroding from the LiOH? Can I dry out LiOH in a metal container without corrosion?

Damm, I dropped some lithium into a glass of water and got a very nice reaction. Looks like another glass goes to the graveyard. l still don't really know what the white powder in my glass dish is. It's so abrasive on the glass it's unbelievable.

[Edited on 10-7-2004 by tom haggen]

blip - 9-7-2004 at 22:03

Wow your brother is one real wimp, just like mine. He kept pleading for me to stop hydrolyzing the few bits and pieces I decided to test. I guess we <i>should</i> be as terrified as them given the inherent dangers, but I myself am much too fascinated to completely stop. For my birthday, I asked my best friend if he could get some batteries from his dad as a present to me just to stockpile (they seem to be very storage stable) and it's not like my friend is the one paying.

I think the mask was for keeping water-laden breath from reaching the metal as easily. I recently acquired a similar old one that was found in the medical supplies around the house. I also remember the roll of lithium having thin black lines parallel to its edges as if a roller dispensed it. I don't remember whether there were gaps or not in the lines, but that's probably not very important at all. I wonder how hard it would be to take one of those rolls, hypothetically of course.

Edited after seeing tom haggen's post:
The white film may be lithium silicate precipitating if the hydroxide solution is concentrated, maybe even reinforced by the common ion effect of lithium ions. I don't think a metal container would corrode too badly if it doesn't normally in the presence of a salt e.g. iron.

[Edited on 7-10-2004 by blip]

Saerynide - 10-7-2004 at 22:21

Why would you want to make rolls of lithium?

blip - 11-7-2004 at 18:32

Answered in a previous post: "One of my chem books shows this guy holding a roll of <b>lithium foil intended for batteries</b>. ..."

I wonder whether anyone has run into lithium-ion batteries thinking they would have the metal inside (they don't as I understand).

Lithium

Cyrus - 14-7-2004 at 13:13

I just got some Li from 2 energizer e2 aa batteries.

Procedure- for the first battery, I cut a circle almost going through the battery outer wall, the circle was in the middle of the battery. Then I tried to cut all the way through the battery under mineral oil. That's not easy, don't try to replicate it unless you have something smaller and better than a hacksaw to cut with-very messy and slow. Then I used needlenosed pliers to pull off one side of the outer shell, then the other side. I dipped the rolled up insides into mineral oil and then stupidly thought that the iron sulfide was the lithium, and that the lithium was another roll of Al foil:o. I figured that while I was sawing open the battery, all of the lithium oxidized. After collecting all of the iron sulfide by scraping it off of the Al roll, and putting it in a bottle with mineral oil, getting rather aggrevated with my very poor quality lithium, :) I noticed the lithium roll. Ahh, that's what I was missing. This was rolled up and put in mineral oil.

I put the second battery in a vise, sawed a circle around it, cutting it in half. Several fires started, but they are easily put out by dripping mineral oil on the battery. Then I pulled out the roll and unrolled it. This time I just got the Lithium, rolled it up, and put it in the bottle. Good.

The smell during the whole operation was very, very, very bad. It was disgusting, revolting, asphixiating! Kind of like H2S, but worse somehow.

After doing this I feel sleepy and slightly incoherent.:(

Also, when I put Li in water I would say it smelled more like NaOH, probably because it is LiOH. :P I detected no ammonia smell.

tom haggen - 14-7-2004 at 15:27

Oh god.... that smell deserves a spot in the best and worst smelling chemicals thread. I almost smells like a stink bomb.
When I unraveled my batteries there were two types of foil inside. One was alumminum I think, and the other was lithium foil por supuesto.

Saerynide - 14-7-2004 at 20:14

At first, I thought the iron sulfide was the Li too! I was so disappointed to see that there was so little of it. After, I felt really stupid for failing to see that it sank in the oil and could not have been Li :P

Yeah, that iron sulfide smells SO bad. I kept on thinking it was like H2S also. Since I had the whole roll under oil, I didnt smell the iron sulfide too much. Mostly, it was that sweet smell I was smelling.

Was your lithium dark brown/black? It'll only make the ammonia smell in water if its covered in Li3N.

Hmmm, that's the second person to be affected by Li batteries :o

And why did the aluminum foil come at such a surprise? I mentioned it in the first post :P

Cyrus - 14-7-2004 at 21:52

Well I can't even remember if the Li had nitrides on it. The front was bright, but I never looked at the back.

The Al foil wasn't a surprise, the Li foil was.;) I didn't read the first posts very carefully.

Reply

Jacked - 1-8-2004 at 17:17

Just for input of information in this thread, the engineers at energizer say there are exactly .98 grams of Li in a AA battery. The best material I have experienced to submerge Li in is Naphtha, It displaces H2O very well and when you retrieve the Li for a reaction a quick patting with a paper towel dries it completely so no contaminants are introduced into the reaction... What ever that reaction might be.. After the core is removed from its housing it should be quickly placed under a layer of Naphtha and unrolled, Using a casserole dish with about an inch of naphtha does the job fine, You can place coins alone the strip to hold it down until it is transfered to a clean container of Naphtha. This method will leave the Li silver in color instead of the blackened color that the opening post portrays. This happens seconds after it is exposed to O2...

budullewraagh - 1-8-2004 at 18:53

ah, so it's the iron sulfide that smells so bad. seriously awful stuff, that. i also got some smoke when i opened my first :\

i saw the pic of the H2O reaction. if you were thinking of wasting your Li, why didn't you use a conc acid instead of H2O?

Saerynide - 1-8-2004 at 22:22

Oh no, I wasn't wasting the Li :P I was making sure it *was* Li by by making sure it reacted with water :P

Edit: typo

[Edited on 2-8-2004 by Saerynide]

budullewraagh - 2-8-2004 at 06:34

well, i was just saying that if you wanted to have some fun, you could have reacted it with a concentrated acid. -> much more vigorous reaction. actually, if you wanted to have a bit more fun you could have added some KCl or KNO3 to that mixture and replaced the K with Li yielding K metal. throw that in a beaker of conc acid and you'll definately blow up the beaker. it will ignite with a purple flame and go shooting around the surface in all random directions with much gas evolved. good stuff:D

Saerynide - 2-8-2004 at 07:46

I dont think adding Li to a KCl solution would make K metal. The K atoms would react with the water as soon they're reduced.

Edit: typos again

[Edited on 2-8-2004 by Saerynide]

budullewraagh - 2-8-2004 at 11:11

indeed. that's why i didn't say to make an aqueous solution;)

Saerynide - 2-8-2004 at 12:29

You said "mixture"!

budullewraagh - 2-8-2004 at 12:43

mixtures aren't all aqueous solutions.
50mL HCl(l) and motor oil form a mixture but certainly not an aqueous solution. the reaction described above could work when submerged in motor oil

Reverend Necroticus Rex - 2-8-2004 at 13:15

Pyridine is the only thing I can think of at the moment that could be possibly used, AFAIK alkali meals don't react w/pyridine, don't know if it would dissolve your potassium salt, hard to get due to it being a contolled chemical, but if it dissolves KCl then it might work.

Saerynide - 2-8-2004 at 13:16

No need to be mad. I wasnt being condescending. Sorry if it sounded that way (smilies really *are* indispensible...).

Now, before you get pissed at me again...

I wasnt expecting you to suggest something so insane as to liqueifying HCl, pouring on motor oil, then dunking metallic lithium into it and blowing up the room :D Therefore I assumed you meant aqueous solution :P

No hard feelings, k?

BromicAcid - 2-8-2004 at 13:38

Quote:

Pyridine is the only thing I can think of at the moment that could be possibly used, AFAIK alkali meals don't react w/pyridine


For working with the alkali metals many solvents can be used. Although I don't know exactly what you mean to use it for. But the alkali metals will not react with pyridine, ethylamine, acetonitrile, mineral oil, paraffin, and are recoverable from hydrazine, and ammonia without change.

Reverend Necroticus Rex - 2-8-2004 at 13:44

I was thinking, make a saturated solution of KCl in pyridine if pyridine will dissolve it, and adding Li(s) to precipitate potassium metal, and filtering in an inert atmosphere to protect the fine particles of potassium if it worked:D

budullewraagh - 2-8-2004 at 14:07

Quote:
No hard feelings, k?

no worries at all.

actually, the post above reminded me; NH3(l) reduces alkali metals to form -1 anions. it makes me wonder; if you added, say, NaCl to NH3(l), would you get Na(s)?

if so, i'm heavily considering distilling some NH3 to 100%, collecting the gas then pressuring it like crazy in a container filled with NaCl;)

BromicAcid - 2-8-2004 at 14:09

Won't work as the anion is still there, it will dissolve though, I think NaCl is slightly soluble in NH3. But it will not form the beautiful blue solutions associated with solvated electrons.

Reverend Necroticus Rex, LiCl is only slightly soluble in pyridine, this was mentioned in the thread making lithium metal by one of our members that attempted electrochemical production to produce lithium in this manner. I don't know if the difference in electronegativity is enough to force this reaction foreword without additional prodding.

[Edited on 8/2/2004 by BromicAcid]

Saerynide - 6-8-2004 at 00:57

Today I dissected my second Li battery. This time, when I had unrolled the whole coil, all the Li was still silver. I wanted to store the Li in a fresh container of mineral oil, so I quickly pulled it out and dunked in the new container. Unfortunately, there were air bubbles stuck to it and I didnt realise, so about 10 min later, when I looked at the Li again, it was brownish.

Right now, its still kinda streaming bubbles, and its almost 3 hours later :mad: How much air is trapped in this wad :mad: So much for silver Li...

The_Davster - 6-8-2004 at 09:32

I don't think that air in the wad is the cause of the streams of bubbles. I think the bubbles are a result of you mineral oil still having a small content of water.

When I made some Na a while back, when I placed it in mineral oil, I too got those bubbles.

Cyrus - 6-8-2004 at 10:22

If you stored the mineral oil with some CaCl2 or MgSO4 (anhydrous of course) might that help dry the oil?

I have never tried it, as the mineral oil I used was brand new- no water. In the future it might be useful though!

chemoleo - 6-8-2004 at 12:31

It's not just the water in the oil, but possibly components of the oil reacting too.
For my potassium I used lamp oil (clear low chain paraffins, as it said on the back), and the potassium hasn't changed appearance to half a year ago.

budullewraagh - 6-8-2004 at 13:28

Quote:
CaCl2 or MgSO4

their cations very well may be replaced by the Li

Cyrus - 7-8-2004 at 20:40

True, but I would dry the oil, filter/remove out the drying agent, and then put in the lithium.

Now if the drying agent sank, this would not be a problem as lithium floats:)...

unless the drying agent was soluble in mineral oil, but I doubt CaCl2 is (enough to be a problem).

bfesser - 3-7-2009 at 16:17

Sorry to resurrect an old thread, but I thought it more appropriate than starting yet another Li from batteries thread. Has anyone here tried using a pipe cutter (the type used by plumbers to cut copper pipes, where the pipe is pressed by rollers onto a hard disc and rotated to score it until it's cut) to open the case of the battery? If it worked, it would most likely be quicker, cleaner, and easier than using a hacksaw or peeling with pliars.

DJF90 - 3-7-2009 at 16:49

I can imagine it would work very nicely. Although I havent done it myself (with a battery), cutting copper pipe with one was easy and clean. Batterys could be cut right through the middle (careful to only cut the outer casing), the casing removed as two halves and then the foil unrolled after coating with mineral oil (or unroll it under oil),

bfesser - 3-7-2009 at 17:02

I was thinking more along the lines of cutting right below the constriction. In my experience with cutting copper and brass pipes with those cutters, they tend to crush a bit before they cut. If the cut could be made high enough, perhaps it would avoid crushing and possibly shorting the foil. I'm not brave enough to try it at the moment. Anyone got the balls to try it first?

[edit]
I'm also concerned that the slight crushing of the case would make it difficult to pull the roll out.

[Edited on 7/4/09 by bfesser]

benzylchloride1 - 3-7-2009 at 21:46

What size of lithium batteries have the most lithium in them for the least cost? I want to prepare butyl lithium in ether for some up coming synthesises. I disassembeld a older D size lithium battery several years ago and obtained a large amount of lithium foil. I kept the lithium under xylene and used a paper towel to prevent exposure to the atmosphere. Within several months, the lithium had decomposed to a white-gray colored mass. What is the best method for storing the lithium extracted from batteries? I have not seen any of the D sized batteries in local stores.

[Edited on 4-7-2009 by benzylchloride1]

DJF90 - 4-7-2009 at 05:52

Crushing of the pipe/battery should be minimal if you increase the pressure very slowly with respect to the number of rotations you do. To cut a standard copper pipe, I would expect about 20-30 rotations should be about right, and the same should be attempted for the battery. You can easily cut in 7-10 rotations, but the cut is poor (aforementioned crushing). You cant cut right at the top of the battery; its hard to explain why, but you need enough pipe either side of the blade in order to cut - at least 1cm on each side (although you need more on one side so you can hold it - a battery should probably be held gently in a vice and then cut as far to one end as possible (I expect about 10-12mm from the top or so).

The_Davster - 4-7-2009 at 06:17

Quote: Originally posted by benzylchloride1  
What is the best method for storing the lithium extracted from batteries?


Under mineral oil, in a jar completely filled with oil (ie no head space of air), followed by inverting the jar to keep air from diffusing in through the cap.

[Edited on 4-7-09 by The_Davster]