Nano-LiCoO(2) as cathode material of large capacity and high rate capability for aqueous rechargeable lithium batteries

作者：Tang W; Liu L L; Tian S; Li L; Yue Y B; Wu Y P^*; Guan S Y; Zhu K

来源：Electrochemistry Communications, 2010, 12(11): 1524-1526.

DOI：10.1016/j.elecom.2010.08.024

• Aqueous rechargeable lithium battery (ARLB)
• Nanoparticles
• Cathode material
• LiCoO(2)
• Large capacity
• High rate capability

Crystalline nanoparticles of LiCoO(2) are prepared by a sal-gel method at 550 degrees C and characterized by X-ray diffraction. Their electrochemical behaviors were characterized by cyclic voltammograms, capacity measurement and cycling performance. Results show that the reversible capacity of the nano-LiCoO(2) can be up to 143 mAh/g at 1000 mA/g and still be 133 mAh/g at 10,000 mA/g (about 70C) in 0.5 mol/l Li(2)SO(4) aqueous electrolyte. In addition, their cycling behavior is also very satisfactory, no evident capacity fading during the initial 40 cycles. These data present great promise for the application of aqueous rechargeable lithium batteries.

• 出版日期2010-11
• 单位上海空间电源研究所; 复旦大学