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Open AccessArticle

Analysis of the Effect of the Variable Charging Current Control Method on Cycle Life of Li-ion Batteries

1
Smart Electrical & Signaling Division, Korea Railroad Research Institute, Uiwang-si 16105, Korea
2
Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Korea
*
Authors to whom correspondence should be addressed.
Energies 2019, 12(15), 3023; https://doi.org/10.3390/en12153023
Received: 28 May 2019 / Revised: 17 July 2019 / Accepted: 1 August 2019 / Published: 6 August 2019
(This article belongs to the Special Issue Energy Storage and Management for Electric Vehicles)
Applications of rechargeable batteries have recently expanded from small information technology (IT) devices to a wide range of other industrial sectors, including vehicles, rolling stocks, and energy storage system (ESS), as a part of efforts to reduce greenhouse gas emissions and enhance convenience. The capacity of rechargeable batteries adopted in individual products is meanwhile increasing and the price of the batteries in such products has become an important factor in determining the product price. In the case of electric vehicles, the price of batteries has increased to more than 40% of the total product cost. In response, various battery management technologies are being studied to increase the service life of products with large-capacity batteries and reduce maintenance costs. In this paper, a charging algorithm to increase the service life of batteries is proposed. The proposed charging algorithm controls charging current in anticipation of heating inside the battery while the battery is being charged. The validity of the proposed charging algorithm is verified through an experiment to compare charging cycles using high-capacity type lithium-ion cells and high-power type lithium-ion cells. View Full-Text
Keywords: battery charging; cycle-life; state-of-health (SOH); battery cycle-life extension battery charging; cycle-life; state-of-health (SOH); battery cycle-life extension
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MDPI and ACS Style

Cho, I.-H.; Lee, P.-Y.; Kim, J.-H. Analysis of the Effect of the Variable Charging Current Control Method on Cycle Life of Li-ion Batteries. Energies 2019, 12, 3023. https://doi.org/10.3390/en12153023

AMA Style

Cho I-H, Lee P-Y, Kim J-H. Analysis of the Effect of the Variable Charging Current Control Method on Cycle Life of Li-ion Batteries. Energies. 2019; 12(15):3023. https://doi.org/10.3390/en12153023

Chicago/Turabian Style

Cho, In-Ho; Lee, Pyeong-Yeon; Kim, Jong-Hoon. 2019. "Analysis of the Effect of the Variable Charging Current Control Method on Cycle Life of Li-ion Batteries" Energies 12, no. 15: 3023. https://doi.org/10.3390/en12153023

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