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Research on failure rate model of lithium-ion batteries
Jia Ying, Li Huolin*
Dept. of System Engineering of Engineering Technology,Beijing University of Aeronautics and Astronautics,Beijing 100191, China

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Abstract�� Base failure rate model and operating failure rate model were developed to predict the reliability of the lithium-ion batteries. Firstly, the mostly failure models of lithium-ion batteries were analysised, and the operating current and temperature were regarded as the main accelerating factors of the failure of lithium-ion batteries. Secondly, consulting the GJB/Z299 , the life-testing data was used to calculating the numerical values of the parameters of the models, and to buid the adjusting coefficient(��π��-coefficient)project. By using the models, the predicting failure values under different operating currents and temperatures were calculated. The predicting failure values were then compared with the life-testing values. The results indicate that the base failure rate model and operating failure rate model are feasible for engineering practise.
Keywords�� lithium batteries   reliability   prediction   models     
Received 2007-07-20;
About author: �� ӱ(1961-)Ů,�����,������,jiayingbh@163.com.
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��ӱ,�����.����ӵ��ʧЧ��ģ�͵�̽��[J]  �������պ����ѧѧ��, 2008,V34(8): 973-975
Jia Ying, Li Huolin.Research on failure rate model of lithium-ion batteries[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2008,V34(8): 973-975
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