State-of-Health Estimation of Lithium-Ion Batteries by Fusing an Open Circuit Voltage Model and Incremental Capacity Analysis

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成果类型：

期刊论文

作者：

Bian, Xiaolei;Wei, Zhongbao Gae*;Li, Weihan;Pou, Josep;Sauer, Dirk Uwe;...

通讯作者：

Liu, Longcheng;Wei, Zhongbao Gae

作者机构：

[Bian, Xiaolei; Liu, Longcheng] KTH Royal Inst Technol, Dept Chem Engn, S-11428 Stockholm, Sweden.

[Wei, Zhongbao Gae] Beijing Inst Technol, Sch Mech Engn, Natl Engn Lab Elect Vehicles, Beijing 100811, Peoples R China.

[Li, Weihan; Sauer, Dirk Uwe] Rhein Westfal TH Aachen, Inst Power Elect & Elect Drives, D-52062 Aachen, Germany.

[Pou, Josep] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore.

[Liu, Longcheng] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Singapore.

通讯机构：

[Liu, Longcheng] K

[Wei, Zhongbao Gae] B

KTH Royal Inst Technol, Dept Chem Engn, S-11428 Stockholm, Sweden.

Beijing Inst Technol, Sch Mech Engn, Natl Engn Lab Elect Vehicles, Beijing 100811, Peoples R China.

语种：

英文

关键词：

Discharges (electric);Estimation;Integrated circuit modeling;Aging;Degradation;Current measurement;Computational modeling;Data fusion;incremental capacity analysis (ICA);lithium-ion battery (LIB);open circuit voltage (OCV) model;state of health (SOH)

期刊：

IEEE Transactions on Power Electronics

ISSN：

0885-8993

年：

2022

卷：

期：

页码：

2226-2236

DOI：

10.1109/TPEL.2021.3104723

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [52072038]

机构署名：

本校为其他机构

院系归属：

核科学技术学院

摘要：

The state of health (SOH) is a vital parameter enabling the reliability and life diagnostic of lithium-ion batteries. A novel fusion-based SOH estimator is proposed in this study, which combines an open circuit voltage (OCV) model and the incremental capacity analysis. Specifically, a novel OCV model is developed to extract the OCV curve and the associated features-of-interest (FOIs) from the measured terminal voltage during constant-current charge. With the determined OCV model, the disturbance-free incremental capacity (IC) curves can be deri...

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State-of-Health Estimation of Lithium-Ion Batteries by Fusing an Open Circuit Voltage Model and Incremental Capacity Analysis

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