Effect of aqueous binder on the performance of lithium-ion batteries
WU Mincong
YAO Yue
Abstract：This paper mainly studies the effect of the aqueous binder polyacrylic acid(PAA)on the performance of LiFePO4 lithium-ion batteries.By adding aqueous binder PAA,the processing performance of negative electrode slurry was studied,and make PAA into a full battery to study its electrochemical properties.The result shows that the resistance is reduced and the peel force is correspondingly increased after adding PAA.And the battery performance with PAA is significantly better than that without PAA.The rate performance and high temperature performance is optimized.The capacity retention rate of 950 cycles of 1 C/1 C at room temperature is 94.32%and 89.12%respectively;for high temperature(45℃)1 C/1 C cycles 500 cycles,the battery capacity retention rate is 93.46%and 91.40%.
Keywords：lithium-ion batteryaqueous binderrate performancehigh temperature performancecycle performance
Publication Date：2025-12-25
Online Publishing Date：2026-01-06(First online date of this platform, not the publication date of the document)
Pages：6( 506-511 )