Lithium-ion batteries power our daily lives ... The researchers mixed old battery particles with iron(II) salt, sodium oxalate, and glycine in a neutral liquid. This forms a thin iron(II) oxalate ...

These help to break up the spent cathode material from the batteries—lithium-coated nickel cobalt manganese oxide (NCM). The NCM particles are mixed with an iron(II) salt, sodium oxalate, and the ...