Finite element analysis and experimental verification of Si based composite thin film anodes for Lithum-ion battery
JI Jia-lei
ZHU Kong-jun
LIU Peng-cheng
QIAN Guo-ming
WANG Yu
LIU Jing-song
Abstract：Si is the most promising anode material for high energy lithium ion battteries because of its high specific capacity(4200mAh·g -1).But its undesirable volume enpansion results in me-chanical degration and capacity reduction.It is a promising way to combine Si and inert metal to relieve the expansion during Li+insertion/extraction.In this article,use Abaqus to compare three different Si thin films(Si,Si-Mn,Si-Zr).Si thin film was deposited on Cu foil by magne-tron supttering for use as lithium ion battery anode material.The electrochemical performance of Si film was investgated by cyclic voltammetry and constant current charge/discharge test.The results consistent with simulation.The use of metal material is useful for the electronical per-formance and Zr is more useful than M n.
Keywords：Lithium-ion batterySi thin film anodeInert metalAbaqusMagnetron supttering
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 19-27 )