期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 16, 期 45, 页码 24965-24970出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cp03590a
关键词
-
资金
- Bill and Melinda Gates Foundation [OPP1069500]
- Bill and Melinda Gates Foundation [OPP1069500] Funding Source: Bill and Melinda Gates Foundation
We quantify the effects of the duration of the charge-discharge cycling period on the irreversible loss of anode material in rechargeable lithium metal batteries. We have developed a unique quantification method for the amount of dead lithium crystals (DLCs) produced by sequences of galvanostatic charge-discharge periods of variable duration tau in a coin battery of novel design. We found that the cumulative amount of dead lithium lost after 144 Coulombs circulated through the battery decreases sevenfold as tau shortens from 16 to 2 hours. We ascribe this outcome to the faster electrodissolution of the thinner dendrite necks formed in the later stages of long charging periods. This phenomenon is associated with the increased inaccessibility of the inner voids of the peripheral, late generation dendritic structures to incoming Li+.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据