The prototype implementation of a varying current charger for aged rechargeable Lithium-ion batteries

Jieh Hwang Yen*, Po Cheng Fan, Lan-Rong Dung, Fa Hwa Shieh

*Corresponding author for this work

研究成果: Conference contribution同行評審

2 引文 斯高帕斯(Scopus)

摘要

A varying current charger for rechargeable Lithium-ion battery is implemented to maintain a predefined energy bound which is consumed by the overpotential equivalent resistance. For aged Lithium-ion batteries, the traditional CCCV charging method charges the battery with the same constant current no matter how the battery internal overpotential resistance increases. The varying current charger developed in this paper will follow the pre-defined energy bound, calculate the internal resistance from EMF and update the next charge current by matching the estimated time to consume the energy bound and the end of charge time. The hardware prototype is implemented with a FPGA and a current source board and the communicates with PC user interface through UART. The experiments show that the efficiency for the varying charge current method is hold for both a new battery and an aged battery although the charging time is compromised.

原文English
主出版物標題2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - Proceedings
頁面5421-5424
頁數4
DOIs
出版狀態Published - 15 六月 2011
事件2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - XianNing, China
持續時間: 16 四月 201118 四月 2011

出版系列

名字2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - Proceedings

Conference

Conference2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011
國家China
城市XianNing
期間16/04/1118/04/11

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