期刊
ACTA MECHANICA SINICA
卷 37, 期 6, 页码 895-901出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s10409-021-01103-0
关键词
Internal field study; Embedded sensor; Wireless temperature transmission; Lithium-ion battery
资金
- Beijing Municipal Science and Technology Commission [Z191100002719007]
- National Natural Science Foundation of China [11672341]
A novel in-situ temperature sensing framework is proposed in this study, incorporating temperature sensors with a signal transmission solution to transmit internal measurements outside batteries without interfering their normal state. Extensive experimental results validate the effectiveness of this framework, showing promising potential for in-situ battery health monitoring and promoting the development of smart batteries.
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 outside 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 solution has a promising potential for in-situ battery health monitoring and thus promoting the development of smart batteries.
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