Abstract
The nickel_based complex oxide LiaNi0.78Co0.02O2 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 LiaNi0.78Co0.2Cd0.02O2 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.
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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