喷雾干燥法制备LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2锂离子电池正极材料及其电化学性能  

Synthesis and Characterization of Cathode Material LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 for Lithium-ion Battery with Spray Drying Method

作　　者：王正国[1] 钟胜奎[1] 

机构地区：[1]苏州大学沙钢钢铁学院,江苏苏州215021

出　　处：《稀有金属与硬质合金》2014年第4期59-62,共4页Rare Metals and Cemented Carbides

基　　金：广西科学研究与技术开发计划资助项目(桂科攻1348010-2)

摘　　要：采用喷雾干燥法合成了锂离子电池正极材料LiNi1／3Co1／3Mn1／3O2，并通过XRD、SEM、充放电实验对其晶体结构、微观形貌、电化学性能进行表征。结果表明：750℃煅烧12h所合成正极材料LiNi1／3Co1／3Mn1／3O2的颗粒呈类球形且大小均匀，在2．8～4．3V、0．1C条件下的首次放电比容量为154mA·h／g，25次循环后的比容量保持率为94．7％，表现出优良的电化学性能。The cathode material LiNi1/3Co1/3Mn1/3O2 for lithium-ion battery was successfully synthesized with the spray drying method and its crystal structure, morphology and electrochemical performance were characterized by SEM,XRD and charge-discharge experiments. The results show that the cathode material LiNi1/3Co1/3Mn1/3O2 with spherical and evenly distributed particles can be synthesized at 750 ℃ for 12 h. And the cathode material exhibits excellent electrochemical performance for that its initial discharge specific capacity is 154 mA ·h/g under the conditions of 2.8~4.3 V and 0.1C and its discharge specific capacity is maintained at 94.7 % after 25 cycles.

关 键 词：锂离子电池 正极材料 LINI1 3Co1 3Mn1 3O2 喷雾干燥法 电化学性能 

分 类 号：O614.111[理学—无机化学]