Thermal Runaway of Lithium-Ion Batteries without Internal Short Circuit

热失控 锂(药物) 材料科学 核工程 短路 离子 热的 法律工程学 工程类 电气工程 电池(电) 化学 物理 电压 热力学 心理学 精神科 功率(物理) 有机化学
作者
Xiang Liu,Dongsheng Ren,Hungjen Hsu,Xuning Feng,Gui‐Liang Xu,Minghao Zhuang,Han Gao,Languang Lu,Xuebing Han,Zhengyu Chu,Jianqiu Li,Xiangming He,Khalil Amine,Minggao Ouyang
出处
期刊:Joule [Elsevier BV]
卷期号:2 (10): 2047-2064 被引量:644
标识
DOI:10.1016/j.joule.2018.06.015
摘要

Context & ScaleWith the explosive growth of portable devices and electric vehicles, there is an urgent need for safer Li-ion batteries (LIBs) with even higher energy density. The most catastrophic failure mode of LIBs is thermal runaway (TR) accidents; while TR only happens occasionally, it is a serious threat for the battery user and people nearby. In this paper, the mechanism behind TR without internal short circuiting is reported for the first time. A polyethylene terephthalate ceramic separator was used in battery tests to exclude the occurrence of an internal short circuit that is inducing Joule heat. Test results indicated that chemical crosstalk between the cathode and anode is the hidden mechanism that triggers TR, during which cathode-released oxygen is consumed by the lithiated anode, with a heat release rate of 87.8 W/g. The results advance understanding of the complicated TR mechanism in high-energy-density LIBs and should help in their future design.Highlights•Thermal runaway of 25-Ah LIBs without internal short circuits is reported•Cathode-produced oxygen is consumed by the anode with heat generation•Chemical crosstalk is the hidden thermal runaway mechanism at high temperature•Cathode with inferior thermal stability may trigger the TR more intensivelySummaryWe demonstrate herein that not only internal short circuiting, but also chemical crossover, is the mechanism behind thermal runaway that can occur in lithium-ion batteries due to abuse conditions. In situ experiments showed that during thermal runaway, the cathode releases oxygen by a phase transition, and this oxygen is consumed by the lithiated anode. The released highly oxidative gas reacts with reductive LiCx with tremendous heat generation centered at 274.2°C with heat flow of 87.8 W g−1. To confirm the proposed mechanism, we froze a battery undergoing the thermal runaway process by liquid nitrogen and subjected it to detailed post-test analysis. Our results revealed the hidden thermal runaway mechanism of chemical crossover between the battery components without a severe internal short circuit. These findings provide an important insight into the rational design of automotive lithium-ion batteries as well as solid-state batteries.Graphical abstract
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
xiaohongmao完成签到,获得积分10
刚刚
3秒前
qweerrtt完成签到,获得积分10
10秒前
10秒前
与共发布了新的文献求助10
11秒前
carly完成签到 ,获得积分10
12秒前
颢懿完成签到 ,获得积分10
15秒前
量子星尘发布了新的文献求助10
16秒前
18秒前
ljc完成签到 ,获得积分10
19秒前
Java完成签到,获得积分10
23秒前
25秒前
鲤鱼安青完成签到 ,获得积分10
27秒前
27秒前
dollarpuff完成签到 ,获得积分10
30秒前
30秒前
mmmmmMM完成签到,获得积分10
37秒前
luckweb完成签到,获得积分10
43秒前
猫的毛完成签到 ,获得积分10
44秒前
nicky完成签到 ,获得积分10
45秒前
麦子完成签到 ,获得积分10
46秒前
46秒前
Wilson完成签到 ,获得积分10
47秒前
luckweb发布了新的文献求助10
47秒前
47秒前
51秒前
54秒前
传奇3应助wujiwuhui采纳,获得10
56秒前
开心寄松完成签到,获得积分10
58秒前
北宫完成签到 ,获得积分10
58秒前
wansida完成签到,获得积分10
1分钟前
QXS完成签到 ,获得积分10
1分钟前
1分钟前
菠萝完成签到 ,获得积分10
1分钟前
领导范儿应助Villanellel采纳,获得10
1分钟前
wintersss完成签到,获得积分10
1分钟前
尹尹发布了新的文献求助10
1分钟前
量子星尘发布了新的文献求助10
1分钟前
zzzzzz完成签到 ,获得积分10
1分钟前
坦率的枕头完成签到,获得积分10
1分钟前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038066
求助须知:如何正确求助?哪些是违规求助? 3575779
关于积分的说明 11373801
捐赠科研通 3305584
什么是DOI,文献DOI怎么找? 1819239
邀请新用户注册赠送积分活动 892655
科研通“疑难数据库(出版商)”最低求助积分说明 815022