Lithium Metal Negative Electrode for Batteries with High Energy Density: Lithium Utilization and Additives

被引：11

作者：

Yoshii, Kazuki ^{[1
]}

Sakaebe, Hikari ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Electrochem Energy RIECEN, Dept Energy & Environm, 1-8-31 Midorigaoka, Ikeda, Osaka 5638577, Japan

来源：

ELECTROCHEMISTRY | 2020年 / 88卷 / 05期

关键词：

Lithium Metal Negative Electrode; Utilization; Additive; Battery; VINYLENE CARBONATE; FLUOROETHYLENE CARBONATE; FULL CELL; ANODE; PRESSURE; CAPACITY; LIFEPO4; LAYER;

D O I：

10.5796/electrochemistry.20-00085

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Metallic lithium is considered to be the ultimate negative electrode for a battery with high energy density due to its high theoretical capacity. In the present study, to construct a battery with high energy density using metallic lithium as a negative electrode, charge/ discharge tests were performed using cells composed of LiFePO4 and metallic lithium at various lithium utilization values. A relationship was observed between utilization and cycle performance, and the degradation behavior of metallic lithium was evaluated by cross-sectional FE-SEM observations. We also investigated the effects of additives in the electrolyte and found that FEC and VC effectively improved cycle performance. (C) The Author(s) 2020. Published by ECSJ.

引用

页码：463 / 467

页数：5

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