反应性(心理学)
电池(电)
傅里叶变换红外光谱
电解质
锂(药物)
金属
阴极
阳极
锂电池
材料科学
化学工程
热稳定性
无机化学
化学
电极
物理化学
有机化学
冶金
离子键合
离子
功率(物理)
病理
内分泌学
替代医学
工程类
物理
医学
量子力学
作者
Bingyu Lu,Diyi Cheng,Bhagath Sreenarayanan,Weikang Li,Bhargav Bhamwala,Wurigumula Bao,Ying Shirley Meng
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2023-07-05
卷期号:8 (7): 3230-3238
被引量:8
标识
DOI:10.1021/acsenergylett.3c01001
摘要
Lithium metal anodes are crucial for high-energy-density batteries, but concerns regarding their safety remain. Limited investigations have evaluated the reactivity of Li metal anodes in full cell configurations. In this study, differential scanning calorimetry (DSC) and in situ Fourier-transform infrared spectroscopy (FTIR) were employed to quantitatively examine the Li metal reactivity. Lithiated graphite (Li-Gr) and lithiated silicon (Li-Si) were also compared. The reactivity of plated Li was systematically investigated when combined with different electrolyte compositions, morphologies, atmospheres, and various cathode materials (NMC622, LFP, and LNMO). It was discovered that all cell components, such as electrolyte composition, Li morphology, control of inactive Li accumulation, and cathode stability, play essential roles in regulating the reactivity of the plated Li. By optimizing these factors, the Li metal full cell exhibited no significant thermal reaction up to 400 °C. This research identifies key parameters for controlling Li metal reactivity, potentially advancing lithium metal battery design and manufacturing.
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