阳极
材料科学
电解质
自行车
锂(药物)
成核
剥离(纤维)
储能
电压
图层(电子)
化学工程
电极
复合材料
化学
电气工程
热力学
物理
工程类
内分泌学
物理化学
功率(物理)
考古
有机化学
历史
医学
作者
Hyung‐Seok Lim,Dan Thien Nguyen,Joshua Lochala,Xia Cao,Ji‐Guang Zhang
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2023-12-12
卷期号:9 (1): 126-135
被引量:6
标识
DOI:10.1021/acsenergylett.3c01808
摘要
Anode-free lithium batteries (AFLBs) have great potential to provide a higher energy density than most other batteries. However, the performance of AFLBs is very sensitive to pressure and other operating parameters. In this work, the operating voltage range and the internal pressures applied to AFLBs using a localized high-concentration electrolyte have been optimized for the coin cells widely used in the early stage research of AFLBs. With an optimized cycling protocol, a thin layer of uniform nucleation sites can be formed during the initial cycle, which will facilitate smooth Li deposition/stripping in the subsequent cycles of AFLBs. The solid–electrolyte interphase layer formed under optimized pressure and uniform pressure distribution exhibits good stability for long-term cycling. The internal pressure in the coin cells has been optimized to improve the cycling performance of AFLBs (Cu||NMC811) with 72% capacity retention in 100 cycles.
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