Patent ID: 7781101

Claim:
An electrode for a non-aqueous electrolyte secondary battery comprising: a current collector, wherein, the current collector includes: a plurality of grooves formed on a surface; and a plurality of growth regions partitioned by the plurality of grooves; a first active material layer formed on the current collector; and a second active material layer provided on the first active material layer, the second active material layer provided on the first active material layer, the second active material layer including a plurality of active material particles, wherein, the plurality of active material particles are mainly of a chemical composition represented as SiO x (0≦x<1.2); the first active material layer is mainly of a chemical composition represented as SiO y (1.0≦y<2.0, y>x); an area in which the first active material layer is in contact with the plurality of active material particles is smaller than an area in which the current collector is in contact with the first active material layer; and each of the plurality of active material particles is formed on a corresponding growth region with the first active material layer interposed therebetween.