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Spinel LiNi 0.5 Mn 1.5 O 4 Cathode for High‐Energy Aqueous Lithium‐Ion Batteries
Author(s) -
Wang Fei,
Suo Liumin,
Liang Yujia,
Yang Chongyin,
Han Fudong,
Gao Tao,
Sun Wei,
Wang Chunsheng
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201600922
Subject(s) - aqueous solution , spinel , electrolyte , energy density , lithium (medication) , materials science , cathode , energy (signal processing) , ion , chemical engineering , analytical chemistry (journal) , engineering physics , chemistry , physics , metallurgy , organic chemistry , medicine , electrode , endocrinology , quantum mechanics , engineering
A 2.9 V intrinsic safe aqueous LiNi 0.5 Mn 1.5 O 4 /Mo 6 S 8 full cell delivers 80 W h kg −1 energy density with capacity decay of 0.075% per cycle (5 C). After the electrolyte pH value adjustment, almost full capacity of LiNi 0.5 Mn 1.5 O 4 (125 mA h kg −1 ) is achieved, and 126 W h kg −1 energy density is provided for LiNi 0.5 Mn 1.5 O 4 /Mo 6 S 8 cell, representing one of the highest voltage and energy density among all the aqueous batteries.