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Preparation and Electrochemical Performance of Li[Ni 1/3 Co 1/3 Mn 1/3 ]O 2 Synthesized Using Li 2 CO 3 as Template
Author(s) -
Zhang Jibin,
Zhong Yanjun,
Shi Xiaxing,
Zheng Zhuo,
Hua Weibo,
Chen Yanxiao,
Liu Wenyuan,
Zhong Benhe
Publication year - 2015
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201500455
Subject(s) - electrochemistry , chemistry , lithium (medication) , porosity , precipitation , particle size , specific surface area , analytical chemistry (journal) , electrode , chemical engineering , crystallography , catalysis , organic chemistry , medicine , physics , meteorology , engineering , endocrinology
Porous structure Li[Ni 1/3 Co 1/3 Mn 1/3 ]O 2 has been synthesized via a facile carbonate co‐precipitation method using Li 2 CO 3 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 α ‐NaFeO 2 [space group: R ‐3 m (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.