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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

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.

Original languageEnglish
Title of host publication2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - Proceedings
Pages5421-5424
Number of pages4
DOIs
StatePublished - 15 Jun 2011
Event2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - XianNing, China
Duration: 16 Apr 201118 Apr 2011

Publication series

Name2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - Proceedings

Conference

Conference2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011
CountryChina
CityXianNing
Period16/04/1118/04/11

Keywords

  • electromotive force
  • overpotential equivalent resistance
  • rechargeable Lithium battery
  • Varying current charger

Fingerprint Dive into the research topics of 'The prototype implementation of a varying current charger for aged rechargeable Lithium-ion batteries'. Together they form a unique fingerprint.

  • Cite this

    Yen, J. H., Fan, P. C., Dung, L-R., & Shieh, F. H. (2011). The prototype implementation of a varying current charger for aged rechargeable Lithium-ion batteries. In 2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - Proceedings (pp. 5421-5424). [5768762] (2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - Proceedings). https://doi.org/10.1109/CECNET.2011.5768762