微波法制备锂硫电池正极材料硫化镍  

Synthesizing lithium sulfur battery cathode material nickel sulfide by microwave method

作　　者：韩东梅[1] 王拴紧[1] 沈培康[1] 孟跃中[1] 

机构地区：[1]中山大学低碳化学与过程节能广东省重点实验室,广东广州510275

出　　处：《电池》2013年第1期6-8,共3页Battery Bimonthly

摘　　要：采用微波法制备纳米球形硫化镍(NiS),并用XRD、SEM和恒流充放电测试等方法进行分析。制备的NiS样品为纯相α-NiS,粒径均匀且没有明显的团聚。用微波反应时间为60 s的样品组装扣式电池,以0.5C在1.0～3.0 V循环的首次放电比容量为535 mAh/g,第100次循环的放电比容量为409 mAh/g,容量保持率为76%。Nano-spherical nickel sulfide（NiS） was synthesized by microwave method. The products were analyzed by means of XRD and SEM and galvanostatic charge-discharge tests. The synthesized NiS was pure phase a-NiS, the particle size was uniform without significant agglomeration. When cycled in 1.0 - 3.0 V with 0.5 C, the initial specific discharge capacity of button cell as- sembled with the sample of 60 s microwave reaction time was 535 mAh/g, the specific discharge capacity at the 100th cycle was 409 mAh/g,the capacity retention was 76%.

关 键 词：锂硫电池 硫化镍(NiS) 正极材料 微波法 

分 类 号：TM912.9[电气工程—电力电子与电力传动]