电池2017，Vol.47Issue(1)：12-15,4.DOI:10.19535/j.1001-1579.2017.01.004
钠源对P2-Na2/3Ni1/3Mn2/3O2性能的影响
Effect of sodium sources on performance of P2-Na2/3Ni1/3Mn2/3O2
陈森 1韩恩山 1朱令之 1许寒2
作者信息
- 1. 河北工业大学化工学院,天津300130
- 2. 中国电子科技集团公司第十八研究所,天津300384
- 折叠
摘要
Abstract
The P2 structure Na2/3 Ni1/3 Mn2/3 O2 cathode material was synthesized with different sodium sources by acetate combustion method.XRD,SEM,cyclic voltammogram and electrochemical impedance spectroscopy were employed to characterize the influence on structure,morphology and electrochemical performance of the materials.The better layered structure,the uniform particle size and the optimal electrochemical performance were achieved for the sample synthesized with Na2 CO3 as Na sources.The initial discharge capacity of 89.8 mAh/g and the coulombic efficiency of 123.3％ at 0.1 C in 2.0-4.0 V.The initial discharge capacity was 74.3 mAh/g at 1.0 C,the discharge capacity was 71.1 mAh/g and the capacity retention was 95.7％ after 50 cycles.关键词
Na2/3Ni1/3Mn2/3O2/正极材料/钠源/电化学性能/循环性能/钠离子电池Key words
Na2/3Ni1/3 Mn2/3 O2 cathode material/Na source/electrochemical performance/cycle performance/Na-ion battery分类
信息技术与安全科学引用本文复制引用
陈森,韩恩山,朱令之,许寒..钠源对P2-Na2/3Ni1/3Mn2/3O2性能的影响[J].电池,2017,47(1):12-15,4.
