Durability comparison of four different types of high-power batteries in HEV and their degradation mechanism analysis

Dongxiang Yan, Languang Lu, Zhe Li, Xuning Feng, Minggao Ouyang and Fachao Jiang

Applied Energy, 2016, vol. 179, issue C, 1123-1130

Abstract: There are many types of high-power batteries used in HEVs, and their durabilities and degradation mechanisms are different. In this paper, four types of commercial high-power batteries, including two types of LTO/NCM lithium-ion battery from two different manufacturers, a C/LMO battery and a supercapacitor (SC), are studied. A durability test with a realistic current profile for an HEV is used so that the durability results more closely reflect real operating conditions than a general cycle life test. Incremental capacity (IC) curves are used to qualitatively analyze the degradation mechanism. To compensate for defects in the IC method, a prognosis model, using a genetic algorithm to reconstruct constant current charge voltage curves, is adopted to quantitatively identify the battery aging mechanism.

Keywords: High-power battery; Durability; Degradation mechanism; Incremental capacity (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (9)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:179:y:2016:i:c:p:1123-1130

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DOI: 10.1016/j.apenergy.2016.07.054

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