The present invention provides an electrode assembly comprising: a radical unit provided with first and second electrodes stacked with a separator therebetween, wherein the first electrode is stacked at the outermost side; and a safety unit disposed on the outermost surface of the radical unit, wherein the safety unit comprises: a first safety plate disposed above the outermost surface of the radical unit; and a first semiconductor material provided between the radical unit and the first safety plate, wherein the first semiconductor material changes from an insulator to a conductor at the first set temperature or more to connect the radical unit to the first safety plate, thereby dissipating heat of the radical unit while conducting the heat to the first safety plate.

An all-solid-state rechargeable battery including a positive electrode layer; a negative electrode layer; and a solid electrolyte layer between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes a plate-shaped positive electrode current collector, and a positive electrode active material layer on the positive electrode current collector, the positive electrode layer includes an endothermic material that absorbs heat by a decomposition reaction, and a content of the endothermic material in the positive electrode layer is greater than or equal to about 1 part by weight and less than or equal to about 30 parts by weight, based on 100 parts by weight of the positive electrode active material layer.

Apparatuses, systems, devices, and methods for power management during system startup at low temperatures are disclosed. An apparatus includes a battery for an electronic device. The battery includes one or more cells. The apparatus includes a thermal insulation element configured to insulate heat that the battery. The thermal insulation element is coupled to the battery to prevent at least a portion of the heat that the battery generates from being dissipated from the battery during startup of the electronic device.

The invention provides an electrode assembly and its battery device thereof, which is composed of a first belt current collector and a second belt current collector, which a plurality of electrochemical systems are disposed therebetween. Also, the glue frame is utilized to completely enclose thereof. Therefore, each electrochemical system is an independent module and there only have charges transferred occurring rather than electrochemical reactions therebetween. The glue frame located between the electrochemical systems and the first belt current collector and the second belt current collector adhered by the glue frame can be folded to form a bending portion. By the bending portion, the electrochemical system would be folded to overlap the adjacent electrochemical system to achieve a z-axis stacking. It is easy to mass produce, and it can also reduce the amount of the tabs configured in series or parallel. Therefore, the energy density loss of the space configuration can be reduced.

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 comprises a cell stack that encompasses layers stacked above each other in a stacking direction, whereby the layers consist alternately of an electrode or of a separator. At least one of the electrodes that is arranged between the ends of the cell stack protrudes beyond the remaining electrodes on one side perpendicular to the stacking direction, and said protruding electrode is thermally contacted with a cooling element that is arranged parallel to the stacking direction and next to the cell stack. A battery module has several such batteries.

A battery pack includes a thermally conductive plate that can be cooled or heated, and an array of electrochemical cells. The cells include a stacked or rolled arrangement of electrode plates, and a current collector disposed in the battery cell that forms an electrical connection with the electrode plates and provides a thermal conduction pathway for conducting heat from the electrode plates to the thermally conductive plate.

A battery pack includes a thermally conductive plate that can be cooled or heated, and an array of electrochemical cells. The cells include a stacked or rolled arrangement of electrode plates, and a current collector disposed in the battery cell that forms an electrical connection with the electrode plates and provides a thermal conduction pathway for conducting heat from the electrode plates to the thermally conductive plate.

An electrochemical device that includes an electrochemical cell. The electrochemical cell includes a thermal conductive path that thermally couples one or more interior elements of the electrochemical cell to an external part of the electrochemical cell.

The present disclosure relates a temperature regulating system including an anisotropic material for use as a heating material or element (e.g., an active heater) and a cooling material or element (e.g., passive cooling) in a battery pack including one or more electrochemical cells. The temperature regulating system includes one or more temperature control elements. Each temperature control element is configured to be in a heat transfer relationship with one or more electrochemical cells so as to heat and/or cool the one or more electrochemical cells of the battery pack. Each temperature control element includes two or more structural elements and one or more anisotropic elements disposed between the two or more structural elements. The temperature control elements may be disposed between the electrochemical cells of the stack, disposed around the electrochemical cells of the stack, or both.