Patent ID: 8557437
Filing Date: 2013-10-15
Classification: H01M,Y02E

Abstract:
1. An electrode for a lithium ion secondary battery comprising: a collector, an active-material layer formed on the collector, and a protecting layer formed on the active-material layer, wherein: the protecting layer contains a low-melting point organic particle having a melting temperature of 100 to 200° C. and an average particle size (D50) of 0.10 to 4.0 μm, and a high-melting point organic particle having a melting temperature of 300° C. or more and an average particle size (D50) of 0.30 to 6.0 μm, a ratio of the average particle size (D50) of the low-melting point organic particle to the average particle size (D50) of the high-melting point organic particle is 1:1.5 to 1:8, and a ratio of a content of the low-melting point organic particle relative to a content of the high-melting point organic particle in the protecting layer is 1:1 to 1:4, in terms of mass.