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Citation: Yang Hua-Quan, Sun Bao-Yun, Wang Gang-Qun, Li Neng, Zhang Wan-Jing, Lin Bing-Xiong. Study on the Structure and Electrochemical Performances of LiCoO₂ Dopped with Ni²⁺[J]. Acta Physico-Chimica Sinica, ;1996, 12(08): 716-720. doi: 10.3866/PKU.WHXB19960809 shu

Study on the Structure and Electrochemical Performances of LiCoO₂ Dopped with Ni²⁺

1.
Department of Chemistry,Peking University,Beijing 100871

Received Date: 7 February 1996
Available Online: 15 August 1996

The relationship of the synthesis conditions of the materials, modification of their imperfect structure as well as electrochemical performances are investigated systematically for the series of complex oxides LixCo1-yNiyO(2-δ) (x=1, 0<y<0.5). The results indicate that during the substitution of Co ion Ni2+ ion occupies the A site with finite probability. The empties A or B and O sites occur with different proportion when Ni2+ ions are dopped in ABO2 type of LiCoO2. The Co ion have a super-high average valence state and the distance of Li(Ni)-O and O-O increase in the imperfect structure. Therefor, the conductivities of these series of complex oxides and the specific capacity of the batteries are increased.
- Li_xCo_1-yNi_yO_2-δ;Synthesis,
- Imperfect structure,
- Aqueous solution secondary battery
  ,
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Study on the Structure and Electrochemical Performances of LiCoO2 Dopped with Ni2+

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通讯作者: 陈斌, bchen63@163.com

Study on the Structure and Electrochemical Performances of LiCoO₂ Dopped with Ni²⁺