Patent ID: 7972724
Filing Date: 2011-07-05
Classification: H01M,Y02E,Y10T

Abstract:
1. A negative electrode for a lithium rechargeable battery, the negative electrode comprising: a current collector; a thermosetting resin layer on the current collector, wherein the thermosetting resin layer comprises a polyimide resin; and a negative active material layer on the thermosetting resin layer, wherein the negative active material is capable of reversibly intercalating/deintercalating lithium, and wherein the current collector is configured to diffuse metal ions into the thermosetting resin layer, and wherein the thermosetting resin layer includes the diffused metal ions in a concentration gradient across the thermosetting resin layer in which a concentration of the metal ions at an interface between the current collector and the thermosetting resin layer is greater than a concentration of the metal ions at an interface of the thermosetting resin layer and the negative active material layer.