Toyota Jidosha Kabushiki Kaisha

Hiroshi Fujiwara

Kazuhito Kato

Shinji Kojima

Katsuaki Odagi

Yuichi Itoh

Yuto Narita

An all-solid-state battery, wherein on a first side surface of an all-solid-state battery laminate, a first electrode current collector layer includes a first electrode current collector protruding part, which protrudes in a surface direction, and a second electrode current collector layer includes a second electrode current collector protruding part, which protrudes in a surface direction, a surface direction area of a second electrode-solid electrolyte laminate is larger than a surface direction area of a first electrode laminate, the first electrode laminate is laminated on the inside of the second electrode-solid electrolyte laminate when viewed from the lamination direction, and on the first side surface, an edge of the second electrode-solid electrolyte laminate in the surface direction is at least partially covered with a resin layer so that the first electrode current collector protruding part does not directly contact the edge in the surface direction of the second electrode-solid electrolyte laminate.

All-solid-state battery and production method therefor

A solid-state battery includes a third active material layer, a first solid electrolyte layer, a first active material layer, a first current collector layer, a second active material layer, a second solid electrolyte layer and a fourth active material layer in the order mentioned, wherein both the first and second active layers are anode or cathode active material layers. When both the first and second active layers are anode layers, both the third and fourth active layers are cathode layers. When both the first and second active layers are cathode layers, both the third and fourth active layers are anode layers, at least the first current collector layer extends to an outer side than the third and fourth active layers, and an insulating resin layer continuously across a surface of the extending part on one side, a side face and a surface of the extending part on the other side.

All solid-state battery, resin applicator, and method for producing all solid-state battery

[SUMMARY] [OBJECT] To provide an all-solid-state battery in which the occurrence of short-circuiting can be prevented and in which damage to the electrode can be prevented, and a method for producing the all-solid-state battery. [SOLVING MEANS] An all-solid-state battery, wherein on a first side surface of an all-solid-state battery laminate, a first electrode current collector layer includes a first electrode current collector protruding part, which protrudes in a surface direction, and a second electrode current collector layer includes a second electrode current collector protruding part, which protrudes in a surface direction, a surface direction area of a second electrode-solid electrolyte laminate is larger than a surface direction area of a first electrode laminate, the first electrode laminate is laminated on the inside of the second electrode-solid electrolyte laminate when viewed from the lamination direction, and on the first side surface, an edge of the second electrode-solid electrolyte laminate in the surface direction is at least partially covered with a resin layer so that the first electrode current collector protruding part does not directly contact the edge in the surface direction of the second electrode-solid electrolyte laminate.

Growing community of inventors

Susono, Japan

Hiroshi Fujiwara