Internal field study of 21700 battery based on long-life embedded wireless temperature sensor

• 作者: Le Yang Na Li Likun Hu Shaoqi Wang Lin Wang Jiang Zhou Wei-Li Song Lei Sun Tai-Song Pan Hao-Sen Chen Daining Fang
• 来源期刊: 力学学报（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: RAPID COMMUNICATION
• 页码范围: 895-901
• 页数: 7页
• 语种: 英文

摘要

The safety of lithium-ion batteries is an essential concern where instant and accurate temperature sensing is critical.It is generally desired to put sensors inside batteries for instant sensing.However,the transmission of internal measurement out-side batteries without interfering their normal state is a non-trivial task due to the harsh electrochemical environment,the particular packaging structures and the intrinsic electromagnetic shielding problems of batteries.In this work,a novel in-situ temperature sensing framework is proposed by incorporating temperature sensors with a novel signal transmission solution.The signal transmission solution uses a self-designed integrated-circuit which modulates the internal measurements outside battery via its positive pole without package breaking.Extensive experimental results validate the noninterference properties of the proposed framework.Our proposed in-situ temperature measurement by the self-designed signal modulation solu-tion has a promising potential for in-situ battery health monitoring and thus promoting the development of smart batteries.