A storage battery module includes battery cells, a first member and a second member opposing the first member across a substrate. The first member closes the space between adjacent terminals, and covers an open surface of a housing in a state where the terminals of the battery cells are exposed. The first member is formed of a material having a thermal resistance greater than or equal to a first threshold. The substrate opposing the battery cells across the first member has holes through which the terminals are inserted and a conductor formed therein so as to electrically connect the terminals. The second member opposing the first member across the substrate surrounds the terminals projecting from the holes and covers the substrate with the terminals exposed from the holes. The second member is formed of a material having a thermal resistance greater than or equal to a second threshold.

A battery includes an electrode layer, a counter 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 within a region where the electrode layer and the counter electrode layer face each other. With respect to the first region, 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. A second density, which is the density of the second solid electrolyte material in the second region, is higher than a first density, which is the density of the first solid electrolyte material in the first region.

A battery includes an electrode layer, a counter 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 within a region where the electrode layer and the counter electrode layer face each other. With respect to the first region, 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. A second density, which is the density of the second solid electrolyte material in the second region, is higher than a first density, which is the density of the first solid electrolyte material in the first region.

A battery pack includes a plurality of cells, a refrigerant pipe, a plurality of cooling members, and a restraining unit. Each of the cooling members includes a plate-shaped portion interposed between the cells, and a contact portion jutting out from between the cells and contacting the refrigerant pipe. The restraining unit includes a pair of restraining members and a support member supporting the pair of restraining members, the pair of restraining members restraining opposite ends of the plurality of cells arranged with the plurality of cooling members interposed. The cooling members include one or more first cooling members and one or more second cooling members, the one or more second cooling members having a heat capacity higher than the one or more first cooling members and having a greater contact area with the refrigerant pipe than the one or more first cooling members.

A battery pack includes a plurality of cells, a refrigerant pipe, a plurality of cooling members, and a restraining unit. Each of the cooling members includes a plate-shaped portion interposed between the cells, and a contact portion jutting out from between the cells and contacting the refrigerant pipe. The restraining unit includes a pair of restraining members and a support member supporting the pair of restraining members, the pair of restraining members restraining opposite ends of the plurality of cells arranged with the plurality of cooling members interposed. The cooling members include one or more first cooling members and one or more second cooling members, the one or more second cooling members having a heat capacity higher than the one or more first cooling members and having a greater contact area with the refrigerant pipe than the one or more first cooling members.

A cooling structure includes a power storage stack including power storage cells, first and second end plates, a refrigerant supply path for supplying refrigerant, and first paths each provided in a clearance between two of the adjacent power storage cells. The first end plate is configured to form a second path communicating with the refrigerant supply path in a clearance between a first end of the power storage stack and the first end plate. The second end plate is configured to form a third path communicating with the refrigerant supply path in a clearance between a second end of the power storage stack and the second end plate. The power storage stack is cooled to have a temperature distribution in which the power storage cells disposed on the second end side have temperatures higher than the temperatures of the power storage cells disposed on the first end side.

A cooling structure includes a power storage stack including power storage cells, first and second end plates, a refrigerant supply path for supplying refrigerant, and first paths each provided in a clearance between two of the adjacent power storage cells. The first end plate is configured to form a second path communicating with the refrigerant supply path in a clearance between a first end of the power storage stack and the first end plate. The second end plate is configured to form a third path communicating with the refrigerant supply path in a clearance between a second end of the power storage stack and the second end plate. The power storage stack is cooled to have a temperature distribution in which the power storage cells disposed on the second end side have temperatures higher than the temperatures of the power storage cells disposed on the first end side.

A battery pack according to an embodiment of the present invention may include a plurality of battery modules including a battery cell stack where a plurality of battery cells are stacked, a module frame accommodating the battery cell stack, and a heat sink disposed below a bottom portion of the module frame. A pack frame may accommodates the plurality of battery modules. A refrigerant transmission bolt may couple the bottom portion of the module frame, the heat sink, and the pack frame. The pack frame may includes a pack refrigerant pipe for supply and discharge of a refrigerant. A connection conduit in the refrigerant transmission bolt may connects the pack refrigerant pipe and the heat sink.

Provided in embodiments of the disclosure are a battery heat adjustment circuit and method, a storage medium and an electronic device. The circuit includes a battery pack, the battery pack including at least two battery blocks, and each battery block including one or more battery cells; a first controller, respectively connected to partial battery blocks included in the battery pack, and configured to detect a state of partial battery blocks included in the battery pack and control, based on a state detection result, partial battery blocks included in the battery pack to discharge; and a heat adjustment loop, connected to the first controller, and configured to respectively adjust, by using electric energy released by partial battery blocks included in the battery pack, heat of partial battery blocks included in the battery pack. By means of the disclosure, the problems that heating and heat balance of zones in the battery may not be simultaneously solved in the relevant art is solved.

A thermal storage device for batteries is provided. In some examples, the thermal storage device is provided for a battery pack that includes one or more rechargeable battery cells. In some examples, the lithium ion battery cells are used. The thermal storage device is in thermal contact with the battery cell. The thermal storage device is made of a material that absorbs heat that is given off by battery cells during discharge. In some examples, the thermal storage device is made of a plastic material. The material has a relatively low thermal conductivity but a relatively high specific heat capacity, allowing heat energy to be stored in the thermal storage device. The thermal storage device prevents the battery pack from overheating during use. The thermal storage device defines one or more cell receiving volumes. In some examples, an axially extending relief volume is provided.