Solid-state battery

Abstract

A solid-state battery includes: a first current collector layer having a first current collector tab protruding from one side of a quadrilateral; a first active material layer laminated on the first current collector layer; a second current collector layer having a second current collector tab protruding from one side of a quadrilateral; a second active material layer laminated on the second current collector layer; and a solid electrolyte layer arranged between the first active material layer and the second active material layer and including a polymer electrolyte, wherein, in three sides other than the one side where the first current collector tab is arranged, the solid electrolyte layer is arranged so as to cover end surfaces of the first current collector layer and the first active material layer.

1 . A solid-state battery comprising:
 a first current collector layer having a first current collector tab protruding from one side of a quadrilateral;   a first active material layer laminated on the first current collector layer;   a second current collector layer having a second current collector tab protruding from one side of a quadrilateral;   a second active material layer laminated on the second current collector layer; and   a solid electrolyte layer arranged between the first active material layer and the second active material layer and including a polymer electrolyte,   wherein, in three sides other than the one side where the first current collector tab is arranged, the solid electrolyte layer is arranged so as to cover end surfaces of the first current collector layer and the first active material layer.   
     
     
         2 . The solid-state battery according to  claim 1 , wherein the second current collector layer, the second active material layer, the solid electrolyte layer, the first active material layer, the first current collector layer, the first active material layer, the solid electrolyte layer, the second active material layer, and the second current collector layer are laminated in this order to form a power generating element. 
     
     
         3 . The solid-state battery according to  claim 1 , wherein end surfaces of the second current collector layer and the second active material layer are covered with the solid electrolyte layer on at least one side other than the side where the second current collector tab is arranged. 
     
     
         4 . The solid-state battery according to  claim 1 , wherein a plurality of the power generating elements are laminated. 
     
     
         5 . The solid-state battery according to  claim 3 , wherein a plurality of the power generating elements are laminated, and
 the plurality of the power generating elements are bonded by the solid electrolyte layer that covers the end surfaces of the second current collector layer and the second active material layer.