A lithium-ion battery may include a cathode, an anode, and a polymer electrolyte. The anode may include a current collector. The current collector may include a metal oxide layer provided in a first pattern overlaying a metal layer. The anode may also include a patterned lithium storage structure. The patterned lithium storage structure may include a continuous porous lithium storage layer overlaying at least a portion of the first pattern of metal oxide. These and other lithium-ion batteries are described.

Provided is a laminate-type all-solid state battery configured to suppress the occurrence of short circuits. Disclosed is an all-solid-state battery, wherein a width of the anode layer is larger than a width of the cathode layer; wherein the anode current collector layer comprises an anode current collector layer protrusion protruding in plane direction at any one side of the battery laminate; wherein the cathode current collector layer comprises a cathode current collector layer protrusion protruding in plane direction at any one side of the battery laminate; and wherein the battery laminate comprises side surface fixing portions composed of a resin.

A battery includes an electrode layer, a counter electrode layer, which is a counter electrode for the electrode layer, and a solid electrolyte layer between the electrode layer and the counter electrode layer. The solid electrolyte layer has a first region containing a first solid electrolyte material and a second region containing a second solid electrolyte material. The first region is positioned within a region where the electrode layer and the counter electrode layer face each other. The second region is positioned on an outer peripheral side of the region where the electrode layer and the counter electrode layer face each other, and is in contact with the first region. The first region includes a first projecting portion that projects outward from a region where the electrode layer and the counter electrode layer face each other, and the second region covers the first projecting portion.

A battery includes an electrode layer, a counter electrode layer, which is a counter electrode for the electrode layer, and a solid electrolyte layer between the electrode layer and the counter electrode layer. The solid electrolyte layer has a first region containing a first solid electrolyte material and a second region containing a second solid electrolyte material. The first region is positioned within a region where the electrode layer and the counter electrode layer face each other. The second region is positioned on an outer peripheral side of the region where the electrode layer and the counter electrode layer face each other, and is in contact with the first region. The first region includes a first projecting portion that projects outward from a region where the electrode layer and the counter electrode layer face each other, and the second region covers the first projecting portion.

A battery comprises a first polarity terminal that is attached via a first insulating member to an opening of an outer case. A first polarity plate includes: a first core formed of a conductive material; and a first active material layer. A first drawn-out portion is formed from a side of the first core on the first polarity terminal side thereof being drawn further out than a side of the first active material layer on the first polarity terminal side thereof. The first drawn-out portion includes a first bent portion that is bent towards the radially inner or outer side of the electrode body. A first surface of a first polarity collector plate contacts the surface of the first bent portion on the first polarity terminal side, and the first polarity terminal connects directly or via a conductive member to a second surface of the first polarity collector plate.

A battery comprises a first polarity terminal that is attached via a first insulating member to an opening of an outer case. A first polarity plate includes: a first core formed of a conductive material; and a first active material layer. A first drawn-out portion is formed from a side of the first core on the first polarity terminal side thereof being drawn further out than a side of the first active material layer on the first polarity terminal side thereof. The first drawn-out portion includes a first bent portion that is bent towards the radially inner or outer side of the electrode body. A first surface of a first polarity collector plate contacts the surface of the first bent portion on the first polarity terminal side, and the first polarity terminal connects directly or via a conductive member to a second surface of the first polarity collector plate.

A resin layer that has a first surface, and a second surface facing a side opposite to the first surface; a first metal layer that is provided on the first surface of the resin layer; and a second metal layer that is provided on the second surface of the resin layer, wherein the first metal layer has a first opening.

A resin layer that has a first surface, and a second surface facing a side opposite to the first surface; a first metal layer that is provided on the first surface of the resin layer; and a second metal layer that is provided on the second surface of the resin layer, wherein the first metal layer has a first opening.

Provided is a bipolar current collector, including an insulation film layer, a positive electrode metal layer, and a negative electrode metal layer. The insulation film layer has a first surface and a second surface in a thickness direction. The insulation film layer has a first region portion. In a length direction of the current collector, a part of a first surface located at the first region portion has a first exposed region and a first coated region. A part of a second surface located at the first region portion has a second exposed region and a second coated region. On a symmetry surface, as reference plane, of the insulation film layer in the thickness direction, a projection of the first coated region does not exceed a projection of the second exposed region, and a projection of the second coated region does not exceed a projection of the first exposed region.

A battery includes a positive electrode. The positive electrode includes a first current collector and a first active material. A negative electrode includes a second current collector. The second current collector includes at least one vent channel on at least one surface of the second current collector. The negative electrode includes a second active material.