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논문 기본 정보

자료유형
학술저널
저자정보
Xiaoqiang Zhang (North China University of Technology) Yue Han (North China University of Technology) Wei-ping Zhang (North China University of Technology)
저널정보
한국전기전자재료학회 Transactions on Electrical and Electronic Materials Transactions on Electrical and Electronic Materials 제22권 제5호
발행연도
2021.10
수록면
567 - 574 (8page)
DOI
https://doi.org/10.1007/s42341-021-00357-6

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With the widespread application of large-capacity lithium batteries in new energy vehicles, real-time monitoring the status of lithium batteries and ensuring the safe and stable operation of lithium batteries have become a focus of research in recent years. A lithium battery’s State of Health (SOH) describes its ability to store charge. Accurate monitoring the status of a lithium battery allows the Battery Management System (BMS) to timely adjust the working voltage, charge and discharge current, and heat dissipation efficiency. Lithium batteries have the characteristics of high energy density, high rated voltage, and low self-discharge rate. Improper use can cause accidents such as spontaneous combustion and explosion. The key to ensure stable and safe operations of a lithium battery in a system is to quickly and accurately estimate the SOH of the lithium battery. In this paper, the definition of SOH of lithium battery and the factors affecting the aging of lithium batteryare introduced. Current and predominant methods for estimating the SOH of lithium batteries are summarized. Finally, based on the problems and challenges of current SOH estimation methods of lithium battery, future research directions and emphasis areas are proposed.

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