| http://www.w3.org/ns/prov#value | - The anode active material is not particularly restricted so long as it is a material capable of reversible storage and release of a cation (for example, lithium ion or another alkali metal ion, quaternary ammonium ion, imidazolium ion), desorption and intercalation of a cation, or doping and dedoping with a cation and its counter anion (for example, BF4 ???, PF6 ???, ClO 4 ???, CF3SO3 ???, (CF3SO2
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