Patent ID: 8236446
Filing Date: 2012-08-07
Classification: H01G,H01M,Y02E,Y10S,Y10T

Abstract:
1. An electrochemical battery, comprising: (a) an ionic liquid electrolyte; (b) first and second sets of aligned carbon nanotubes, wherein members of the second set of carbon nanotubes comprise a vanadium oxide coating having a thickness form about 1 to about 100 nm, wherein the cathode has a capacity of at least about 400 hAh per gram of vanadium oxide; (c) an anode comprising the first set of carbon nanotubes; (d) a cathode comprising the second set of carbon nanotubes, and (e) a microporous membrane separator, wherein the ionic liquid and microporous membrane separator are positioned between the anode and cathode, wherein, for the cathode, the carbon nanotubes having a length is from about 300 to about 700 μm;