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Creating New Battery Configuration Associated with the Functions of Primary and Rechargeable Lithium Metal Batteries
Author(s) -
Chen Hao,
Cao Zhenjiang,
Gu Jianan,
Cui Yanglansen,
Zhang Yongzheng,
Zhao Zehua,
Cheng Zongju,
Zhao Qi,
Li Bin,
Yang Shubin
Publication year - 2021
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.202003746
Subject(s) - materials science , overpotential , battery (electricity) , graphite , anode , lithium (medication) , electrode , cathode , gravimetric analysis , nanoarchitectures for lithium ion batteries , lithium battery , lithium vanadium phosphate battery , stripping (fiber) , chemical engineering , electrochemistry , composite material , electrical engineering , ion , chemistry , organic chemistry , ionic bonding , medicine , power (physics) , physics , quantum mechanics , endocrinology , engineering
Although the primary lithium/fluorinated graphite battery has a high energy density of 3725 Wh kg −1 , its complete irreversibility based on a conversion reaction between Li and fluorinated graphite hampers wide applications in rechargeable systems. Here, a new rechargeable three‐electrode battery configuration involving lithium, fluorinated graphite, and sulfur electrodes is developed, in which the initial middle‐fluorinated graphite cathode can be electrochemically transformed into a hybrid lithium anode, showing a low overpotential (12 mV), long cycle life (2000 h) and good deep stripping/plating features. This rechargeable battery delivers a high gravimetric energy density of 507.7 Wh kg −1 on the basis of the total mass of the three‐electrode materials. Moreover, the excessive consumption of lithium in the system can be in situ replenished, further lengthening the lifespan.