SPINEL LiFe xCo2-xO4 (0.25 ≤ x ≤ 1) AS CATHODES IN LITHIUM BATTERIES: RELATIONSHIP BETWEEN IONIC DISTRIBUTION AND LITHIUM ION INSERTION

Journal of The Chilean Chemical Society

MUCHNICK, NICOLE¹  ORTIZ, JUAN¹  GAUTIER, JUAN LUIS¹  HERRERA, FRANCISCO¹  ALBURQUENQUE, DANIELA¹  PASTENE, RUBEN¹ 

[1] Universidad de Santiago de Chile, Santiago, Chile

关键词: Lithium-;    Ferrites;    spinels;    diffusion coefficient;    Li-;    ion batteries;    sol-;    gel.;   

DOI  :  10.4067/S0717-97072013000400022

学科分类：化学（综合）

来源: Sociedad Chilena de Quimica

【 摘 要 】

Spinel LiFexCo2-xO4samples with 0.25≤x≤1 were synthesized by the sol-gel Pechinimethod at 300oC in order to study the impact on their structuraland electrochemical properties due to the substitution of Co by Fe. The specificcapacity for lithium insertion into the electrode materials depend on lithiumdiffusion coefficient DLi which in turn depends on the Fe3+/(Fe3++Co3++Co4+) octahedral cationic ratio.

【 授权许可】

Unknown