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-precipitation; polyol; lithium-ion battery; cathode material 1997年,GOODENOUGH等[1]研究发现,橄榄石型LiFePO4是一种极具应用潜力的锂离子电池正极材料,但其最主要的缺点是本征导电率和振实密度低.改善LiFePO4导电性的方法主要集中在:掺杂金属离子进入LiFePO4晶格,表面包覆导电剂以提高其本征导电性能[2-3]；采... of LiFePO4 for cathode material of lithium-ion battery [D]. Hefei: Hefei University of Technology, 2008: 14-15. (编辑 陈卫萍) 基金项目:国家"十一五"科技支撑计划资助项目(2007BAE58B07) 收稿日期:2011-03-11；修订日期:2011-07-10 通信作者:刘......
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cathode material LiFePO4/C composite was prepared by a solid-state method using the low cost FeSO4?7H2O as iron source and sucrose as carbon source. The structure, morphology and electrochemical... battery; cathode material 锂离子电池以其高可逆容量,高电压,高循环性能和高能量密度等优异特性而备受世人青睐,被称为21世纪的主......
A Novel Method to Improve the Electrochemical Performance of LiMn2O4 Cathode Active Material by CaCO3 Surface CoatingHalil Sahan,Hüseyin Gktepe,Saban Patat摘 要:cathode shows 7.4% and 29.5% loss compared to initial specific discharge capacity at 70th cycle for 25 and 550C, respectively. The improvement of electrochemical......
" name="ChDivSummary">A method of conventional chemical reaction to prepare delithiated cathode materials of Li-ion battery was introduced. The cathode material of Li-ion battery was mixed... delithiated cathode material was obtained. A series of tests were conducted to verify the composition, crystal structure and electrochemical property of the delithiated cathode materials were all......
%. The results show that this method can prepare nanosphere-like Li2FeSiO4/C composite with good electrochemical performance. Key words: lithium-ion batteries; cathode material; Li2FeSiO4/C; solution method 1... low-cost and safe cathode material for large-scale Li-ion battery application, can deliver a good reversibility on cycling because the presence of strong Si-O bonds can promote the same lattice......
">With alumina sol as binder and Ni metal as sintering aids,the Ni-TiB2/Al2 O3 composite cathode material for aluminum electrolysis was prepared by coldpressed sintering.The mechanical properties of the composite cathode material were measured.Its electrolytic properties were identified by a 20-A electrolysis test.Cathode samples before and after electrolysis test were measured by energy-dispersive......
Chemical States of Lanthanum in Carbonized La2O3-Mo Thermionic Cathode Materials 周美玲1,张久兴1,王金淑1,左铁镛1,聂祚仁1,王亦曼1 (1.The Key Laboratory of Advanced Functional Materials, Ministry of Education China.... The experimental results show that the chemical state of lanthanum changes during heating. It was proved, for the first time, that reacted metallic lanthanum appears at the surface of this kind of material......
Controllable Preparation and Superior Rate Performance of Spinel LiMn2O4 Hollow Microspheres as Cathode Material for Lithium-ion Batteries王诗瑶,肖亮,GUO Yonglin,DENG Bohua,QU Deyu,XIE ZhizhongDepartment... as cathode materials for lithium-ion batteries has been studied. Electrochemical performance tests show that Li Mn2O4 hollow microspheres with small wall thickness exhibit both superior rate capability......
friendly and exceptionally stable both chemically and thermally, and is regarded as likely the next cathode material for rechargeable lithium-ion batteries after the layered LiCoO2 and its derivatives... was performed by C-S 800 Determinator (Eltar, Germany). The cathode was made from the active material, carbon black and poly (vinylidene fluoride) binder in a ratio of 80?10?10 by mass. The components......
