石墨负极界面SEI膜与锂离子电池热失控 |
张佳怡, 翁素婷, 王兆翔, 王雪锋 |
Solid electrolyte interphase (SEI) on graphite anode correlated with thermal runaway of lithium-ion batteries |
Jiayi ZHANG, Suting WENG, Zhaoxiang WANG, Xuefeng WANG |
图2 (a) 原位加热XPS的示意图;(b) 温度从25 ℃上升至300 ℃期间,定量分析嵌锂VGCF的XPS总谱、C 1s谱、O 1s谱和F 1s谱;(c) 在25、150、200 ℃下锂化VGCF上SEI膜的cryo-TEM和基于EELS面扫的C(用红色标记)和O(用绿色标记)元素分布图[ |
Fig. 2 (a) Schematic of in-situ heating XPS; (b) Quantitative analysis of the XPS survey spectra, C 1s, O 1s, and F 1s spectra from the lithiated VGCF during the temperature rising from 25 ℃ to 300 ℃; (c) Cryo-TEM images of SEI on the lithiated VGCF at 25, 150, 200 ℃ and their corresponding elemental distribution of C (marked in red) and O (marked in green) based on EELS map scanning[ |
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