A new cheap asymmetric aqueous supercapacitor: Activated carbon//NaMnO(2)

作者：Qu Q T; Shi Y; Tian S; Chen Y H; Wu Y P^*; Holze R

来源：Journal of Power Sources, 2009, 194(2): 1222-1225.

DOI：10.1016/j.jpowsour.2009.06.068

• Supercapacitor
• NaMnO(2)
• Na( )
• Electrochemical behavior
• Aqueous electrolyte

A new cheap asymmetric supercapacitor based on activated carbon (AC) and NaMnO(2) as electrodes and aqueous Na(2)SO(4) solution as electrolyte was assembled. It shows an energy density of 19.5 Wh kg(-1) at a power density of 130 W kg-1 based on the total mass of the active electrode materials and an excellent cycling behavior. This asymmetric aqueous AC//NaMnO(2) capacitor is promising for practical applications due to its low price, easy preparation of NaMnO(2) and friendliness to environment.

• 出版日期2009-12-1
• 单位复旦大学