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.

An electrical energy storage unit for a motor vehicle, having at least one storage unit cell designed to store electrical energy, which storage unit cell has a cell housing in which an electrolyte and an electrode device are arranged, and having a temperature control device that has at least one temperature control channel arranged outside the cell housing, which temperature control channel is able to be flowed through by a temperature control fluid in order to control the temperature of the storage unit cell. At least one heating device is able to be supplied with the electrical energy stored in the storage unit cell and thereby able to be electrically operated. By way of the heating device, the storage unit cell is able to be heated, wherein the heating device is able to be operated without any damage only when the storage unit cell has a state of charge that is not more than 60% of the maximum state of charge of the storage unit cell.

A battery that includes collectors with tabs that are wide with respect to the area of the collector. The wide tabs present a low electrical and thermal resistance to improve the flow of current and/or heat to and from the collector thereby improving electrical and thermal performance of the battery. The battery further includes terminals with a channel that supports the flow of medium (e.g., liquid) to heat and/or cool the battery. The terminals may include fins or pins to increase the surface area of the terminal to improve thermal transfer to and from the battery and collectors of the battery. The batteries may be formed into a battery module that includes a system for monitoring and regulating the temperature of the batteries of the module.

A battery includes a plurality of battery cells, each battery cell including a core, a source of thermal control fluid in fluid communication with the core, and a first pressure sensitive valve positioned between the core and the source of thermal control fluid, the first pressure sensitive valve adapted to open when pressure within the core exceeds a first pre-determined value.

A secondary battery is provided in the present application. The secondary battery includes an electrode assembly including a cathode and an anode facing the cathode, thermoelectric elements columns arranged on a surface of the electrode assembly, and a circuit structure that electrically connects the thermoelectric element columns. The circuit structure includes a series/parallel switching unit configured to switch a connection between the thermoelectric element columns from a series connection to a parallel connection or from a parallel connection to a series connection. The thermoelectric element columns are connected selectively in parallel or in series to improve rapid charging and life-span properties.

A secondary battery is provided in the present application. The secondary battery includes an electrode assembly including a cathode and an anode facing the cathode, thermoelectric elements columns arranged on a surface of the electrode assembly, and a circuit structure that electrically connects the thermoelectric element columns. The circuit structure includes a series/parallel switching unit configured to switch a connection between the thermoelectric element columns from a series connection to a parallel connection or from a parallel connection to a series connection. The thermoelectric element columns are connected selectively in parallel or in series to improve rapid charging and life-span properties.

A self-extinguishable film for a lithium-ion battery, comprising a self-extinguishing layer containing a heat-meltable binder and fire extinguishing agent particles.

A cell lead-out sheet, a battery and an electric vehicle are provided. The cell lead-out sheet includes a heat-conducting member, a main body, and two extending branches bent and extending from one end of the main body. The main body is configured to electrically connect a positive/negative terminal of a battery. The two extending branches are respectively configured to electrically connect to tabs of an electrode core in the battery. The two extending branches are spaced apart from each other to form an installation gap. The heat-conducting member is arranged on a side of the two extending branches facing away from the electrode core. The heat-conducting member at least partially covers the installation gap.

A cell lead-out sheet, a battery and an electric vehicle are provided. The cell lead-out sheet includes a heat-conducting member, a main body, and two extending branches bent and extending from one end of the main body. The main body is configured to electrically connect a positive/negative terminal of a battery. The two extending branches are respectively configured to electrically connect to tabs of an electrode core in the battery. The two extending branches are spaced apart from each other to form an installation gap. The heat-conducting member is arranged on a side of the two extending branches facing away from the electrode core. The heat-conducting member at least partially covers the installation gap.