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Open AccessArticle

Performance and Life Degradation Characteristics Analysis of NCM LIB for BESS

1
Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Korea
2
Korea Electric Power Corporation Research Institute, Daejeon 34056, Korea
*
Author to whom correspondence should be addressed.
Electronics 2018, 7(12), 406; https://doi.org/10.3390/electronics7120406
Received: 22 November 2018 / Revised: 4 December 2018 / Accepted: 4 December 2018 / Published: 7 December 2018
(This article belongs to the Special Issue Renewable Electric Energy Systems)
The battery energy storage system (BESS) market is growing rapidly around the world. Lithium Nickel Cobalt Manganese Oxide (LiNiCoMnO2) is attracting attention due to its excellent energy density, high output power, and fast response characteristics. It is being extensively researched and is finding use in many applications, such as in electric vehicles (EV) and energy storage systems (ESS). The performance and lifetime characteristics of a battery change for varying Ni contents. The consideration of these characteristics of a battery allow for a more reliable battery management system (BMS) design. In this study, various experiments and analyses were carried out using a lithium-ion battery (NCM LIB) with differing Ni contents. In particular, the following two combinations were studied: LiNi0.5Co0.2Mn0.3O2(NCM523) and LiNi0.6Co0.2Mn0.2O2 (NCM622). Various analyses were performed, such as C-rate (C-rate is the charge-discharge rate of a battery relative to nominal capacity) performance tests, hybrid pulse power characterization (HPPC), accelerated deterioration experiments, electrochemical impedance spectroscopy (EIS), parameter estimations of battery equivalent circuits through alternating current (AC) and direct current (DC) impedance, and comparative analyses of battery modeling. View Full-Text
Keywords: performance and life characteristics analysis of NCM LIB; hybrid pulse power characterization (HPPC); accelerated deterioration experiment; electrochemical impedance spectroscopy (EIS); parameter estimation; battery model using ECM performance and life characteristics analysis of NCM LIB; hybrid pulse power characterization (HPPC); accelerated deterioration experiment; electrochemical impedance spectroscopy (EIS); parameter estimation; battery model using ECM
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Kwon, S.-J.; Lee, S.-E.; Lim, J.-H.; Choi, J.; Kim, J. Performance and Life Degradation Characteristics Analysis of NCM LIB for BESS. Electronics 2018, 7, 406.

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