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http://dx.doi.org/10.4313/JKEM.2018.31.6.422

Proposal Protection Algorithm of Dendritic Lithium for Battery Second Use ESS  

Song, Jung-Yong (Department of Electrical Engineering, Inha University)
Huh, Chang-Su (Department of Electrical Engineering, Inha University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.31, no.6, 2018 , pp. 422-426 More about this Journal
Abstract
The lithium-ion battery pack of an electric vehicle (EV) deserves to be considered for an alternative use within smart-grid infrastructure. Despite the long automotive service life, EV batteries retain over 70~80% of their initial capacity. These battery packs must be managed for their reliability and safety. Therefore, a battery management system (BMS) should use specific algorithms to measure and estimate the status of the battery. Most importantly, the BMS of a grid-connected energy storage system (ESS) must ensure that the lithium-ion battery does not catch fire or explode due to an internal short from uncontrolled dendrite growth. In other words, the BMS of a lithium-ion battery pack should be capable of detecting the battery's status based on the electrochemical reaction continuously until the end of the battery's lifespan. In this paper, we propose a new protection algorithm for a dendritic lithium battery. The proposed algorithm has applied a parameter from battery pack aging results and has control power managing.
Keywords
Electric vehicle; Battery management system; Energy storage system; Dendritic lithium;
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