Preparation and Electrochemical Performance of Li[Ni1/3Co1/3Mn1/3]O2 Synthesized Using LizCO3 as Template  

作　　者：Jibin Zhang Yanjun Zhong Xiaxing Shi Zhuo Zheng Weibo Hua Yanxiao Chen Wenyuan Liu Benhe Zhong 

机构地区：[1]College of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China

出　　处：《Chinese Journal of Chemistry》2015年第11期1303-1309,共7页中国化学（英文版）

摘　　要：Porous structure Li[Ni1/3Co1/3Mn1/3]O2 has been synthesized via a facile carbonate co-precipitation method using Li2CO3 as template and lithium-source. The physical and electrochemical properties of the materials were examined by many characterizations including TGA, XRD, SEM, EDS, TEM, BET, CV, EIS and galvanostatic charge-discharge cycling. The results indicate that the as-synthesized materials by this novel method own a well-ordered layered structure a-NaFeO2 [space group： R-3m（166）], porous morphology, and an average primary particle size of about 150 nm. The porous material exhibits larger specific surface area and delivers a high initial capacity of 169.9 mAh·g^-1 at 0.1 C （1 C=180 mA·g ^-1） between 2.7 and 4.3 V, and 126.4, 115.7 mAh.g 1 are still respectively reached at high rate of 10 C and 20 C. After 100 charge-discharge cycles at 1 C, the capacity retention is 93.3%, indicating the excellent cycling stability.Porous structure Li[Ni1/3Co1/3Mn1/3]O2 has been synthesized via a facile carbonate co-precipitation method using Li2CO3 as template and lithium-source. The physical and electrochemical properties of the materials were examined by many characterizations including TGA, XRD, SEM, EDS, TEM, BET, CV, EIS and galvanostatic charge-discharge cycling. The results indicate that the as-synthesized materials by this novel method own a well-ordered layered structure a-NaFeO2 [space group： R-3m（166）], porous morphology, and an average primary particle size of about 150 nm. The porous material exhibits larger specific surface area and delivers a high initial capacity of 169.9 mAh·g^-1 at 0.1 C （1 C=180 mA·g ^-1） between 2.7 and 4.3 V, and 126.4, 115.7 mAh.g 1 are still respectively reached at high rate of 10 C and 20 C. After 100 charge-discharge cycles at 1 C, the capacity retention is 93.3%, indicating the excellent cycling stability.

关 键 词：porous structure Li[Ni1/3Co1/3Mn1/3]O2 cathode material lithium-ion batteries rate performance 

分 类 号：TG139.7[一般工业技术—材料科学与工程] U270.4[金属学及工艺—合金]