Patent ID: 7682745
Filing Date: 2010-03-23
Classification: A61N,H01M,Y02E,Y02P

Abstract:
1. A medical device comprising: a rechargeable lithium-ion battery for providing power to the medical device, the lithium-ion battery comprising: a positive electrode comprising a current collector and an active material comprising a material selected from the group consisting of LiCoO a negative electrode comprising a foil current collector and an active material comprising a lithium titanate material, the current collector of the negative electrode comprising a material selected from the group consisting of aluminum, titanium, and combinations thereof; a liquid electrolyte; and a polymeric separator provided intermediate the positive electrode and the negative electrode that includes pores for allowing the liquid electrolyte to flow through the separator; whereby the battery is configured for cycling to near-zero-voltage conditions without a substantial loss of battery capacity.