NaClO4 / NaTi2(PO4)3 / Na4Fe3(PO4)2P2O7 aqueous dual-ion battery
The battery in chapter 2 of the PhD thesis is much more approachable than the one in chapter 3. The title basically explains it all: titanium anode,
iron cathode, sodium perchlorate electrolyte. The most abundant materials I've seen for a modern battery chemistry.
https://s-space.snu.ac.kr/bitstream/10371/177456/1/000000166...
The air stability of the materials, particularly the Fe (II) cathode, may be annoying to work with, but hopefully it can be managed.
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