电池2017，Vol.47Issue(1)：39-42,4.DOI:10.19535/j.1001-1579.2017.01.011
铝箔涂碳对LiFePO4/C电池性能的影响
Effect of aluminum foil coating carbon on performance of LiFePO4/C battery
摘要
Abstract
Effect of carbon coated aluminum(Al) foil as current collector on lithium iron phosphate (LiFePO4)/C cathode materials and battery performance were studied.Coating carbon on Al foil could suppress the polarization and improve the cohesiveness between the cathode powder and the current collector,reduce the charge transfer resistance and improve the Li + diffusion coefficient.The mean voltage of half cell using carbon coated Al foil as current collector was kept above 3.10 V at 10 C rate,the charge transfer resistance reduced by 65 ％ and the Li + diffusion coefficient increased by more than three times compared with common Al foil.Carbon coated Al foil as current collector could reduce the internal resistance of assembled full battery,the internal resistance was reduced more than 25 ％ and the power density increased more than 35 ％ compared with common Al foil.At 4 C discharge rate,the mean voltage of full batteries was above 3.00 V.When discharged in 3.65-2.00 V,the ration of capacity between 4.00 C and 0.33 C was above 99 ％.关键词
磷酸铁锂(LiFePO4)/涂碳铝箔/集流体/电化学性能Key words
lithium iron phosphate (LiFePO4)/carbon coated/aluminum foil/current collector/electrochemical performance分类
信息技术与安全科学引用本文复制引用
马守龙,杨茂萍,刘兴亮,郭钰静..铝箔涂碳对LiFePO4/C电池性能的影响[J].电池,2017,47(1):39-42,4.基金项目
安徽省科技攻关项目(1501021011) （1501021011）
