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锂离子二次电池正极材料LiM（M=Ni,Tl）_0.05Mn_1.95O₄F_0.05高温性能的研究

Studies on Properties of LiM（M=Ni, Tl）_0.05Mn_1.95O₄F_0.05 for Lithium-ion Rechargeable Batteries

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【Author】 CHEN Zhao-yong;LI Zhi-jie;LIU Xing-quan;GAO Li-zhen;YU Zuo-long Research & Development Center for Functional Materials, Chengdu Institute of Organic Chemistry Chinese Academy of Sciences, Chengdu, 610041, China

【机构】中国科学院成都有机化学研究所功能材料开发中心；

【摘要】以电解MnO₂,LiOH·H₂O,Ni（NO₃）₂·6H₂O,CH₃COOTl和LiF为原料,采用固相反应制备了尖晶石结构的LiM（M=Ni,Tl）_0.05Mn_1.95O₄F_0.05化合物。以所得的材料为正极材料,组装成扣式电池在55℃进行充放电测试,结果表明,添加一定的镍离子尖晶石结构的LiNi_0.05Mn_1.95O₄F_0.05在高温下有较好的充放电稳定性。更多还原

【Abstract】 Spinel LiM（M=Ni, Tl）_0.05Mn_1.95O₄F_0.05 compounds were synthesized by solid-state reaction with calculatedelectrolytic manganese dioxide, LiOH·H₂O, Ni（NO₃）₂·6H₂O, CH₃COOTl and LiF. The charge-dischargeelectrochemical tests were carried out using these compounds as cathode materials in 55℃. It was demonstrated thatLiNi_0.05Mn_1.95O₄F_0.05 had good charge-discharge stability.更多还原