【摘要】 采用自制的LiNi1/3Co1/3Mn1/3O2作正极材料,以石墨作负极,组装成413450型锂离子电池。分别在25℃和55℃下以3.0~4.2 V为电压区间,1C充放电,对其电化学性能进行测试和研究。结果表明:55℃下电池的首次放电比容量为143 mAh/g,25℃下为138 mAh/g;电池在55℃下充放电循环85次,容量保持率为92.15%。过充、热冲击和常温短路实验的顺利通过,证明样品材料有很好的安全性能。更多还原

【Abstract】 The 413450 type battery had been made by using graphite as anode material and self-made LiNi_1/3Co_1/3Mn_1/3O₂ as cathode material.The electrochemical performance was studied and tested at 25 ℃ and 55 ℃,charged-discharged between 3.0～4.2 V with 1 C rate.The results showed that the initial discharge specific capacity of the battery was 143 mAh/g at 55 ℃ and 138 mAh/g at 25 ℃.The capacity retention rate of the battery was 92.15% after 85 charge-discharge cycles at（55 ℃.）The overcharging,thermal shock and the normal temperature short circuit tests of the batteries had been passed.The results proved that the sample material had good safety performance.更多还原