Cycle Life Study of Li-Ion Batteries with an Aging-Level-Based Charging Method

Chien Hsing Lee, Zheng Yan Wu, Shih Hsien Hsu, Joe Air Jiang

Research output: Contribution to journalArticlepeer-review

Abstract

This study presents a preliminary investigation report on an aging-level-based (ALB) charging strategy that is possible to extend the battery lifespan by varying the charge current according to the state of health of a cell as opposed to the standard constant-current constant-voltage (CC-CV) and a four-stage constant current (4SCC) methods. Experimental tests have been carried out, which employed Sanyo UR14500P lithium-ion batteries in the cylindrical shape with a nominal voltage of 3.7 V and a rated capacity of 840 mAh. The results demonstrate that the ALB charging strategy with a CC charge profile is able to slow down the cell capacity fade by 3.84% compared with the standard CC charging method after 120 cycles, which increases the lifetime of 40 cycles to 50 cycles. Besides, the ALB charging strategy with a 4SCC charge profile is able to slow down the cell capacity fade by 2.55% compared with the standard 4SCC charging method after 100 cycles, which prolongs the lifetime of 30 cycles to 40 cycles. Nevertheless, the ALB charging strategy with both the CC and 4SCC charge profiles has much longer charging time than those with the standard charging method, and the charging time increases by 22.5% and 10.71%, respectively.

Original languageEnglish
Article number9056543
Pages (from-to)1475-1484
Number of pages10
JournalIEEE Transactions on Energy Conversion
Volume35
Issue number3
DOIs
Publication statusPublished - 2020 Sep

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Cycle Life Study of Li-Ion Batteries with an Aging-Level-Based Charging Method'. Together they form a unique fingerprint.

Cite this