Synthesis and Electrochemical Characteristics of Nickel-based Complex Oxide Li_aNi_0.78Co_0.2Cd_0.02O₂

Authors

Rong-zhong YUAN, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
Mei-zhen QU, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
Zuo-long YU, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, ChinaFollow

Corresponding Author

Zuo-long YU(chemyrz@hotmail.com)

Abstract

The nickel-based complex oxide Li_aNi_0.78Co_0.02O₂ cathode materials for lithium-ion rechargeable batteries was synthesized by the improved solid-state reaction method with LiOH·H₂O, ball-like Cd-doped Ni(OH)₂ and Co₂O₃ as raw materials. The analysis ICP-AES proved that the as-prepared compounds were near the stoichiometric form. The XRD, SEM and electrochemical characteristics testing were also carried out. The results showed that the complex cathode material Li_aNi_0.78Co_0.2Cd_0.02O₂ has layered structure, homogeneous surface distributions,uniform particles with good crystal morphology as well as stable electrochemical performances. At ambient temperature the resulted materials have a high reversible capacity and good cycling stability. Its highest initial reversible capacity is more than 157.8 mAh/g and still kept at 138.3 mAh/g after 50 continuous cycles.

Keywords

Metal organic framework, Graphene oxide, Electrochemical analysis, Electrode, Supercapacitors

DOI Link

https://doi.org/10.61558/2993-074X.1507

Publication Date

2003-05-28

Online Available Date

2003-05-28

Revised Date

2002-10-21

Received Date

2002-08-26

Recommended Citation

Rong-zhong YUAN, Mei-zhen QU, Zuo-long YU. Synthesis and Electrochemical Characteristics of Nickel-based Complex Oxide Li_aNi_0.78Co_0.2Cd_0.02O₂[J]. Journal of Electrochemistry, 2003 , 9(2): 211-216.
DOI: 10.61558/2993-074X.1507
Available at: https://jelectrochem.xmu.edu.cn/journal/vol9/iss2/14