The effect of battery design parameters on heat generation and utilization in a Li-ion cell

被引：88

作者：

Wu, Wei ^{[1
]}

Xiao, Xinran ^{[1
]}

Huang, Xiaosong ^{[2
]}

机构：

[1] Michigan State Univ, Lansing, MI 48910 USA

[2] Gen Motors Global R&D Ctr, Warren, MI 48090 USA

来源：

ELECTROCHIMICA ACTA | 2012年 / 83卷

基金：

美国国家科学基金会;

关键词：

Li-ion battery; Coupled thermal-electrochemical model; Heat generation; Component thickness; Particle size; THERMAL-BEHAVIOR; IN-SITU; LITHIUM/POLYMER BATTERY; LITHIUM INTERCALATION; TRANSPORT-PROPERTIES; IRREVERSIBLE HEATS; ENERGY-BALANCE; TEMPERATURE; MODEL; CALORIMETRY;

D O I：

10.1016/j.electacta.2012.07.081

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The heat generation in a battery cell is determined by the battery chemistry and kinetics. The battery operation conditions and design parameters have a strong influence on the kinetics. To study the relationships among these parameters, a coupled thermo-electrochemical model for a basic lithium (Li) ion battery cell has been developed. The model was implemented for a LixC6 vertical bar LiPF6(EC/DMC)vertical bar LiyMn2O4 cell. The temperature dependence of six sets of physical properties relevant to the reaction rate and Li transport was investigated. The model was validated against literature data. The predicted heat generation rates were within the range of available experimental results. The model was used to evaluate the influence of active particle size and component thickness on the heat generation rate and battery performance. The results revealed that while batteries with a thin component thickness had a lower temperature rise and better battery utilization, the effect of the particle size was not monotonic across the discharge rates. (C) 2012 Elsevier Ltd. All rights reserved.

引用

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页码：227 / 240

页数：14

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