Enhanced coulomb counting method for estimating state-of-charge and state-of-health of lithium-ion batteries

被引：1222

作者：

Ng, Kong Soon ^{[1
]}

Moo, Chin-Sien ^{[1
]}

Chen, Yi-Ping ^{[2
]}

Hsieh, Yao-Ching ^{[3
]}

机构：

[1] Natl Sun Yat Sen Univ, Dept Elect Engn, Kaohsiung, Taiwan

[2] Ind Technol Res Inst, Lighting Res Lab, Hsinchu, Taiwan

[3] Natl Dong Hwa Univ, Dept Elect Engn, Shoufeng, Hualien, Taiwan

来源：

APPLIED ENERGY | 2009年 / 86卷 / 09期

关键词：

Coulomb counting method; Lithium-ion battery; State-of-charge; State-of-health; LEAD/ACID BATTERIES;

D O I：

10.1016/j.apenergy.2008.11.021

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The coulomb counting method is expedient for state-of-charge (SOC) estimation of lithium-ion batteries with high charging and discharging efficiencies. The charging and discharging characteristics are investigated and reveal that the coulomb counting method is convenient and accurate for estimating the SOC of lithium-ion batteries. A smart estimation method based on coulomb counting is proposed to improve the estimation accuracy. The corrections are made by considering the charging and operating efficiencies. Furthermore, the state-of-health (SOH) is evaluated by the maximum releasable capacity. Through the experiments that emulate practical operations, the SOC estimation method is verified to demonstrate the effectiveness and accuracy. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1506 / 1511

页数：6

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