Thermal analyses of LiFePO4/graphite battery discharge processes

doi:10.1016/j.jpowsour.2013.05.089

GIEC OpenIR > 中国科学院广州能源研究所

	Thermal analyses of LiFePO4/graphite battery discharge processes
	Jiang, Fangming; Peng, Peng; Sun, Yiqiong
	2013-12-01
发表期刊	JOURNAL OF POWER SOURCES
卷号	243 页码:181-194
摘要	An electrochemical-thermal coupling model is developed to describe the LiFePO4/graphite battery discharge and charge processes. Various heat generations/consumptions including Joule heat, reversible entropy heat, contact resistance heat, irreversible electrochemical reaction heat, ionic migration heat, and convective heat release to the ambient during charge or discharge processes are calculated in detail. The developed model is first validated by experimental data. Then systematic and comprehensive thermal analyses with respect to various discharge processes are performed based on the simulated results. For the specific cell considered, the irreversible electrochemical reaction heat and contact resistance heat are found to be the two main heat generation sources; for discharge processes of higher C-rate, the contact resistance heat take more proportion of the total heat generation as it is directly proportional to the squared discharge current density; the ionic migration heat is a sink with magnitude being about 1/3 of the Joule heat. The reversible entropy heat changes its sign from a negative heat sink to a positive heat source during a discharge process and its changing magnitude may be comparable to the irreversible electrochemical reaction heat for all the discharge processes of different C-rates. (C) 2013 Published by Elsevier B.V.
文章类型	Article
关键词	Thermal Analyses Lithium Iron Phosphate Battery Electrochemical-thermal Model Discharge Process
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1016/j.jpowsour.2013.05.089
研究领域[WOS]	Electrochemistry ; Energy & Fuels
关键词[WOS]	LITHIUM-ION BATTERY ; EXPERIMENTAL VALIDATION ; LITHIUM/POLYMER BATTERY ; INSERTION CELL ; MODEL ; LIFEPO4 ; ELECTRODE ; DYNAMICS ; BEHAVIOR
收录类别	SCI
语种	英语
WOS类目	Electrochemistry ; Energy & Fuels
WOS记录号	WOS:000324846200025
引用统计	被引频次：101[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/9152
专题	中国科学院广州能源研究所
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Lab Adv Energy Syst, Guangzhou 510640, Guangdong, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Jiang, Fangming,Peng, Peng,Sun, Yiqiong. Thermal analyses of LiFePO4/graphite battery discharge processes[J]. JOURNAL OF POWER SOURCES,2013,243:181-194.
APA	Jiang, Fangming,Peng, Peng,&Sun, Yiqiong.(2013).Thermal analyses of LiFePO4/graphite battery discharge processes.JOURNAL OF POWER SOURCES,243,181-194.
MLA	Jiang, Fangming,et al."Thermal analyses of LiFePO4/graphite battery discharge processes".JOURNAL OF POWER SOURCES 243(2013):181-194.