Enhanced coulomb counting method for estimating state-of-charge and state-of-health of lithium-ion batteries
Enhanced coulomb counting method for estimating state-of-charge and state-of-health of lithium-ion batteries
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DOI：
10.1016/j.apenergy.2008.11.021
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发表时间：
2009-09-01
期刊：
影响因子：
11.2
通讯作者：
Hsieh, Yao-Ching
中科院分区：
文献类型：
--
作者：
Ng, Kong Soon;Moo, Chin-Sien;Hsieh, Yao-Ching
库仑计数法是一种快速、有效的锂离子电池荷电状态（SOC）估计方法。研究了锂离子蓄电池的充放电特性，结果表明库仑计数法是一种简便、准确的锂离子蓄电池SOC估算方法。为了提高估计精度，提出了一种基于库仑计数的智能估计方法。通过考虑充电和操作效率来进行校正。此外，健康状态（SOH）的最大可释放能力进行评估。通过模拟实际运行的实验，验证了SOC估计方法的有效性和准确性。(C)2008爱思唯尔有限公司保留所有权利。
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.