In-situ temperature measurement in lithium ion battery by transferable flexible thin film thermocouples

被引:157
作者
Mutyala, Madhu Santosh K. [1 ]
Zhao, Jingzhou [2 ]
Li, Jianyang [3 ]
Pan, Hongen [2 ,5 ]
Yuan, Chris [3 ]
Li, Xiaochun [4 ]
机构
[1] Univ Wisconsin, Dept Elect & Comp Engn, Madison, WI 53706 USA
[2] Univ Wisconsin, Dept Mech Engn, Madison, WI 53706 USA
[3] Univ Wisconsin, Dept Mech Engn, Milwaukee, WI 53211 USA
[4] Univ Wisconsin, Dept Mech Engn, Madison, WI 53706 USA
[5] Nanjing Coll Informat Technol, Dept Mech & Elect Engn, Nanjing 210046, Jiangsu, Peoples R China
关键词
Lithium ion battery; Thin film sensor; Flexible substrate; Battery management system; INTERNAL TEMPERATURE; MICRO TEMPERATURE; ISSUES; CELLS;
D O I
10.1016/j.jpowsour.2014.03.004
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Temperature monitoring is important for improving the safety and performance of Lithium Ion Batteries (LIB). This paper presents the feasibility study to insert flexible polymer embedded thin film thermocouples (TFTCs) in a lithium ion battery pouch cell for in-situ temperature monitoring. A technique to fabricate polyimide embedded TFTC sensors on glass substrates and later transfer it onto thin copper foils is presented. The sensor transfer process can be easily integrated into the assembly process of a pouch cell, thus holding promise in implementing in Battery Management Systems (BMS). Internal temperature of the LIB pouch cell was measured in-situ when the sensor embedded battery was operated at high rate charge discharge cycles. The polyimide embedded TFTCs survived the battery assembly process and the battery electrolyte environment. It is observed that the heat generation inside the battery is dominant during the high-rate of discharges. The developed technique can serve to improve the battery safety and performance when implemented in battery management systems and enhance the understanding of heat generation and its effects. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:43 / 49
页数:7
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