广州化学2025，Vol.50Issue(5)：75-79,5.DOI:10.16560/j.cnki.gzhx.20250502
无阳极锂金属电池静置工况下死锂激活研究
Study on Dead Lithium Activation under Resting Conditions in Anode-free Lithium Metal Batteries
朱远峰 1郝亮1
作者信息
- 1. 上海理工大学 能源与动力工程学院,上海 200093
- 折叠
摘要
Abstract
Anode-free lithium metal batteries offer advantages over traditional lithium metal batteries,such as higher energy density and lower cost.This study aims to explore the effect of resting conditions on the activation of dead lithium in anode-free lithium metal batteries.By adjusting the resting time and temperature of the Li||Cu half-cell,the relationship between resting time,temperature,and dead lithium activation was systematically investigated.The best dead lithium activation was achieved by resting the battery at 45℃for 2.5 hours,while the worst activation occurred when the battery was rested at 5℃for 0.5 hours.Additionally,resting the battery at 55℃for 6.5 hours led to a significant reduction in activation.These results indicate that enhanced dead lithium reactivation requires moderate resting conditions.By analyzing the changes in coulombic efficiency(CE)under different resting conditions,the study reveals the relationship between dead lithium activation and the dissolution of the solid electrolyte interphase(SEI)film,and proposes strategies for optimizing resting conditions to improve dead lithium activation.The findings provide new insights for further enhancing the performance of anode-free lithium metal batteries.关键词
无阳极锂金属电池/死锂激活/SEI/库伦效率Key words
anode-free lithium metal battery/dead lithium activation/SEI/coulombic efficiency分类
化学化工引用本文复制引用
朱远峰,郝亮..无阳极锂金属电池静置工况下死锂激活研究[J].广州化学,2025,50(5):75-79,5.
