Electrochemical Behavior of LiFePO4 in Aqueous Lithium Hydroxide Electrolyte
The electrochemistry of olivine-type iron phosphate (FePO4) as a battery cathode material, in aqueous lithium hydroxide (LiOH), has been investigated. The material forms intercalated LiFePO4 reversibly on electroreduction/oxidation. The formation of Fe3O4 phase, in addition to the regeneration of FePO4 during reverse oxidation of LiFePO4, also occurs. In this regard, the mechanism of FePO4 discharge/charge in aqueous LiOH differs from that in non-aqueous solvents.
Keiichi Katayama, Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki
M. Manickam et al., "Electrochemical Behavior of LiFePO4 in Aqueous Lithium Hydroxide Electrolyte", Key Engineering Materials, Vol. 320, pp. 271-274, 2006