Creating New Battery Configuration Associated with the Functions of Primary and Rechargeable Lithium Metal Batteries

被引：36

作者：

Chen, Hao ^{[1
]}

Cao, Zhenjiang ^{[1
]}

Gu, Jianan ^{[1
]}

Cui, Yanglansen ^{[1
]}

Zhang, Yongzheng ^{[1
]}

Zhao, Zehua ^{[1
]}

Cheng, Zongju ^{[1
]}

Zhao, Qi ^{[1
]}

Li, Bin ^{[1
]}

Yang, Shubin ^{[1
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China

来源：

ADVANCED ENERGY MATERIALS | 2021年 / 11卷 / 14期

基金：

中国国家自然科学基金; 中国博士后科学基金; 北京市自然科学基金;

关键词：

anodes; fluorinated graphite; lithium replenishment; primary lithium batteries; rechargeable lithium batteries; CATHODE MATERIALS; PERFORMANCE; PRELITHIATION;

D O I：

10.1002/aenm.202003746

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页数：6

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