Synthesis and Electrochemical Characteristics of Nickel-based Complex Oxide Li_aNi_(0.78)Co_(0.2)Cd_(0.02)O_2

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,China);

Corresponding Author

Zuo_long YU

Abstract

The nickel_based complex oxide LiaNi0.78Co0.02O2 cathode materials for lithium_ion rechargeable batteries was synthesized by the improved solid_state reaction method with LiOH·H2O, ball_like Cd_doped Ni(OH)2 and Co2O3 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0.78Co0.2Cd0.02O2 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.

DOI Link

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

Publication Date

2003-05-28

Online Available Date

2003-05-28

Revised Date

2003-05-28

Received Date

2003-05-28

Recommended Citation

Rong-zhong YUAN, Mei-zhen QU, Zuo-long YU. Synthesis and Electrochemical Characteristics of Nickel-based Complex Oxide Li_aNi_(0.78)Co_(0.2)Cd_(0.02)O_2[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

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