负极材料NiO的制备及电化学性能  

Synthesis and Electrochemical Performance of Anode Material NiO

作　　者：梁英[1] 范晶[1] 贾志杰[1] 

机构地区：[1]华中师范大学纳米科技研究中心,武汉430079

出　　处：《无机化学学报》2007年第1期97-100,共4页Chinese Journal of Inorganic Chemistry

基　　金：湖北省武汉市重大项目纳米专项资金资助(No.20041003068-09)

摘　　要：以Ni(NO3)2·6H2O和NaOH为原料,采用水热法合成了锂离子电池负极材料NiO。通过TG-DSC分析,确定了合成过程的反应机理。通过XRD、SEM和恒流充放电测试,研究了NiO样品的结构、形貌及电化学性能。400℃焙烧得到立方结构的NiO产品,以0.10mA·cm-2充放电,首次放电比容量达到1151mAh·g-1,经过20次循环后的比容量仍为776mAh·g-1。Anode materials NiO for Li-ion battery were synthesized by hydrothermal method with Ni（NO3）2 and NaOH as raw materials. Main reaction mechanism was suggested in terms of TG-DSC analysis results. The structure and electrochemical performance of NiO were characterized by XRD and the constant current chargedischarge tests. NiO sintered at 400℃ was cubic structure and its initial discharge specific capacity was 1 151 mAh·g^-1 at the constant current of 0.1 mA·cm^-2. The reversible capacity maintained 776mAh·g^-1 after 20 cycles.

关 键 词：锂离子电池 负极材料 NIO 电化学性能 

分 类 号：O614.812[理学—无机化学] O646.54[理学—化学]