Patent ID: 8778542
Filing Date: 2014-07-15
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A multilayer, all-solid-state, lithium ion secondary battery, comprising at least a laminate of alternately stacked positive and negative electrode layers having a solid electrolyte layer interposed therebetween, wherein at least one of the positive electrode layer or the negative electrode layer, in which an active material and a solid electrolyte form a matrix structure, consists essentially of the solid electrolyte, the active material, a collector material, and an additive, the active material is a material that efficiently releases and adsorbs lithium ions, the solid electrolyte is a material having low electron conductivity and high lithium ion conductivity, the additive is a boron compound, a sintering aid, or a combination thereof, the matrix structure is produced by baking the laminate at a temperature in a range of 600-1,100° C., the matrix structure is a structure in which material particles that form the matrix are in contact with one another to be three dimensionally continuous, wherein the three dimensionally continuous structure may have a discontinuous part in a two-dimensional cross-section if at least another cross-section is continuous in the structure, and the baked laminate is a sintered laminate.