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Exploiting Lithium‐Depleted Cathode Materials for Solid‐State Li Metal Batteries
Author(s) -
Wang LiPing,
Wang TaiShan,
Yin YaXia,
Shi JiLei,
Wang ChunRu,
Guo YuGuo
Publication year - 2019
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.201901335
Subject(s) - materials science , cathode , anode , electrolyte , lithium (medication) , battery (electricity) , lithium vanadium phosphate battery , gravimetric analysis , lithium metal , energy storage , energy density , dissolution , nanoarchitectures for lithium ion batteries , manganese , metal , chemical engineering , inorganic chemistry , electrode , engineering physics , metallurgy , electrical engineering , chemistry , medicine , endocrinology , engineering , power (physics) , physics , organic chemistry , quantum mechanics
Solid‐state lithium metal batteries (SSLMBs) may become one of the high‐energy density storage devices for the next generation of electric vehicles. High safety and energy density can be achieved by utilizing solid electrolytes and Li metal anodes. Therefore, developing cathode materials which can match with Li metal anode efficiently is indispensable. In SSLMBs, Li metal anodes can afford the majority of active lithium ions, then lithium‐depleted cathode materials can be a competitive candidate to achieve high gravimetric energy density as well as save lithium resources. Li 0.33 MnO 2 lithium‐depleted material is chosen, which also has the advantages of low synthesis temperature and low cost (cobalt‐free). Notably, solid‐state electrolyte can greatly alleviate the problem of manganese dissolution in the electrolyte, which is beneficial to improve the cycling stability of the battery. Thus, SSLMBs enable practical applications of lithium‐depleted cathode materials.