Patent ID: 8663850
Filing Date: 2014-03-04
Classification: B60L,H01M,Y02E,Y02P,Y02T

Abstract:
1. A nonaqueous electrolyte battery comprising: at least one positive electrode; at least one porous negative electrode comprising: a nonaqueous electrolyte comprising at least one first sultone having an unsaturated hydrocarbon group, wherein, upon measuring a distribution of the diameter of the pores within the porous negative electrode by mercury porosimetry, said distribution exhibits a first peak having a mode diameter of 0.01 to 0.2 μm and a second peak having a mode diameter of 0.003 to 0.02 μm, and upon measuring a first volume of pores having a diameter of 0.01 to 0.2 μm and a second volume of pores having a diameter of 0.003 to 0.02 μm by mercury porosimetery, said first volume is from 0.05 to 0.5 mL per gram of porous negative electrode excluding the current collector and said second volume is from 0.0001 to 0.02 mL per gram of the porous negative electrode excluding the current collector.