Study on lifetime and reliability for power battery pack based on single battery failure

Zhenpo Wang; Peng Liu; Wei Chen

doi:10.3772/j.issn.1006-6748.2010.01.004

Study on lifetime and reliability for power battery pack based on single battery failure

Zhenpo Wang
, Peng Liu^*
, Wei Chen

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Single battery failure will change other batteries' load in a power battery pack. Based on the cumulative failure probability equality principle, this paper considers the relationship between the load and the battery life distribution, and constructs a reliability model for the parallel subsystem of the battery pack when a single battery fails, and then compares the lifetime and reliability as a function of load and cell design. The result proves that the k-out-of-n system approaches closed to the parallel subsystem of the power battery pack.

Original language	English
Pages (from-to)	18-22
Number of pages	5
Journal	High Technology Letters
Volume	16
Issue number	1
DOIs	https://doi.org/10.3772/j.issn.1006-6748.2010.01.004
Publication status	Published - Mar 2010

Keywords

Battery
Electric vehicle
Failure
Lifetime
Reliability

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abstract = "Single battery failure will change other batteries' load in a power battery pack. Based on the cumulative failure probability equality principle, this paper considers the relationship between the load and the battery life distribution, and constructs a reliability model for the parallel subsystem of the battery pack when a single battery fails, and then compares the lifetime and reliability as a function of load and cell design. The result proves that the k-out-of-n system approaches closed to the parallel subsystem of the power battery pack.",

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AB - Single battery failure will change other batteries' load in a power battery pack. Based on the cumulative failure probability equality principle, this paper considers the relationship between the load and the battery life distribution, and constructs a reliability model for the parallel subsystem of the battery pack when a single battery fails, and then compares the lifetime and reliability as a function of load and cell design. The result proves that the k-out-of-n system approaches closed to the parallel subsystem of the power battery pack.

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KW - Electric vehicle

KW - Failure

KW - Lifetime

KW - Reliability

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Study on lifetime and reliability for power battery pack based on single battery failure

Abstract

Keywords

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