Thin Film Lithium-Ionbatteries Crack Initiation Due to Thermal and Electric Effects  

作　　者：Sergey Verlinski Lavrenti Shekyan Pier Marzocca Philip Yuya 

机构地区：[1]Faculty of Mechanics and Mechanical Engineering, State Engineering University of Armenia, Yerevan 0009, Republic of Armenial [2]Mechanical and Aeronautical Engineering Department, Clarkson University, New York 13699,USA

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2014年第2期137-141,共5页南京航空航天大学学报（英文版）

基　　金：the National Science Foundation and Advanced Technologies(NFSAT),the grant No.TFP-12-06;supported by Clarkson University Mechanical and Aeronautical Engineering Department;Clarkson University Center for Advanced Material Processing

摘　　要：The transient and thermo-electric finite element analysis(FEA)of a 2Dlithium-on(Li-ion)battery is presented.The process of recharging and discharging of thin film lithium-ion(LiFePO4)battery in the presence of a transversal crack is numerically investigated.During this process significant temperature load influences the behavior of the battery and thermal fields can affect the way crack propagates into the thin film media.The simulations infer about relationship between temperature and electric field and their effect on crack propagation.A Li-ion battery model suitable for this investigation is implemented in the multi-physics software package by COMSOL Inc.,and it is extended to include the thermal and electrical effects.Results and discussion are accompanied with pertinent conclusions.The transient and thermo-electric finite element analysis （FEA） of a 2D lithium-on （Li-ion） battery is presented. The process of recharging and discharging of thin film lithium-ion （LiFePO4） battery in the presence of a transversal crack is numerically investigated. During this process significant temperature load influences the be- havior of the battery and thermal fields can affect the way crack propagates into the thin film media. The simula- tions infer about relationship between temperature and electric field and their effect on crack propagation. A Li-ion battery model suitable for this investigation is implemented in the multi-physics software package by COMSOL Inc. , and it is extended to include the thermal and electrical effects. Results and discussion are accompanied with pertinent conclusions.

关 键 词：LiFePO_(4) battery CRACK temperature and electric field COMSOL multiphysics 

分 类 号：O34[理学—固体力学]