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

Content Provider	IEEE Xplore Digital Library
Author	Jieh-Hwang Yen Po-Cheng Fan Lan-Rong Dung Fa-Hwa Shieh
Copyright Year	2011
Description	Author affiliation: Department of Electrical and Control Engineering, National Chiao-Tung University, Hsinchu City, Taiwan 300 (Jieh-Hwang Yen; Po-Cheng Fan; Lan-Rong Dung) \|\| The 2nd Institute, Chung-Shan Institute of Science and Technology, Longtan, Taoyuan, Taiwan 325 (Fa-Hwa Shieh)
Abstract	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.
Starting Page	5421
Ending Page	5424
File Size	771038
Page Count	4
File Format	PDF
ISBN	9781612844589
e-ISBN	9781612844596
DOI	10.1109/CECNET.2011.5768762
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resistance Prototypes Varying current charger Aging Rechargeable Lithium battery Electromotive force Batteries Mathematical model System-on-a-chip Overpotential equivalent resistance Field programmable gate arrays
Content Type	Text
Resource Type	Article

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