热失控
量热法
锂(药物)
工作(物理)
热的
离子
能量密度
焓
热能
比能量
化学
热力学
能量(信号处理)
材料科学
核工程
电池(电)
工程物理
物理
工程类
内分泌学
医学
功率(物理)
有机化学
量子力学
作者
Joshua Lamb,Loraine Torres-Castro,John C. Hewson,Randy Shurtz,Yuliya Preger
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2021-06-01
卷期号:168 (6): 060516-060516
被引量:18
标识
DOI:10.1149/1945-7111/ac0699
摘要
This work uses accelerating rate calorimetry to evaluate the impact of cell chemistry, state of charge, cell capacity, and ultimately cell energy density on the total energy release and peak heating rates observed during thermal runaway of Li-ion batteries. While the traditional focus has been using calorimetry to compare different chemistries in cells of similar sizes, this work seeks to better understand how applicable small cell data is to understand the thermal runaway behavior of large cells as well as determine if thermal runaway behaviors can be more generally tied to aspects of lithium-ion cells such as total stored energy and specific energy. We have found a strong linear correlation between the total enthalpy of the thermal runaway process and the stored energy of the cell, apparently independent of cell size and state of charge. We have also shown that peak heating rates and peak temperatures reached during thermal runaway events are more closely tied to specific energy, increasing exponentially in the case of peak heating rates.
科研通智能强力驱动
Strongly Powered by AbleSci AI