리튬이온전지의 열화데이터 분석 = Degradation Data Analysis of a Lithium Ion Battery

다국어 초록 (Multilingual Abstract)

This paper presents the degradation data analysis on a lithium ion battery. Electric charge and discharge test are performed for 8 samples, and their capacitances are measured repeatedly at prespecified times. From the capacitance-time graph, it is shown that the capacitance is decreasing over time. For each specimen, the degradation model minimizing mean square error is selected among linear, exponential, logarithm, and power models, and the failure time at which the capacitance leads to a critical value is predicted from the model. Through goodness-of-fit tests, we have assumed that the failure times follow lognormal distribution, and estimated reliability measures of the lithium ion battery.

참고문헌 (Reference)

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8 RIC 04-05, "RIC 04-05, 열화 데이터 분석 Guideline"

9 RIC 03-05, "RIC 03-05, 신뢰성시험 데이터 분석 Guideline"

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12 "BAYSUN"

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