Patent ID: 9413008
Filing Date: 2016-08-09
CPC Classification: H01M,Y02E

Claim Text:
1. A negative electrode comprising a current collector, said current collector having only one negative electrode active material layer provided on each surface thereof, wherein the negative electrode active material layer comprises a negative electrode active material, an acrylic based polymer, and a polyvinylidene fluoride, wherein the negative electrode active material consists of at least one selected from the group consisting of lithium titanate having a spinel structure and a monoclinic 3-type titanium complex oxide, wherein the active material is coated with the acrylic based polymer and the polyvinylidene fluoride, wherein all solid acid points of the active material are coated with the acrylic based polymer, and wherein a ratio of a total mass of the acrylic based polymer to the sum of the total mass of the acrylic based polymer and a mass of the polyvinylidene fluoride is in a range from 60% by mass to 70% by mass.