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3 (a) 从25到280 ℃,以2 ℃/min加热锂化石墨负极过程中的原位XRD图谱;(b) 在DSC测量过程中,在不同温度下引入O2 对锂化石墨热释放的影响;(c) 在热处理锂化石墨负极期间原位监测H2 、CH3 ·、CH4 、CO/C2H4 、O2 及CO2;(d) 在100、150、200和250 ℃时定量分析气体累积分数[ |
Fig. 3 (a) In-situ XRD patterns of the lithiated graphite anode when heated from 25 to 280 ℃ at 2 ℃/min; (b) The influence of oxygen on the lithiated graphite anode at different temperatures during the DSC measurements; (c) In-situ monitoring the evolution of H2, CH3·, CH4, CO/C2H4, O2, and CO2 during heating of the lithiated graphite anode; (d) The quantitative analysis of the gas cumulative ratio at 100, 150, 200, and 250 ℃, respectively[ |
![]() |