A power storage module includes power storage elements having electrode surfaces of positive electrode surfaces and negative electrode surfaces on front and back surfaces thereof, a conductive member electrically connected to the electrode surfaces of the power storage elements, and a wiring module electrically connected to the conductive member. The power storage elements are arranged in an arrangement direction such that the electrode surfaces of the power storage elements that are adjacent to each other are opposed to each other. The electrode surfaces of the power storage elements that are adjacent to each other are electrically connected by the conductive member that is disposed between the power storage elements that are adjacent to each other. The wiring module is disposed between the power storage elements that are adjacent to each other. The conductive member and the wiring module are disposed inside an outline of the power storage elements seen from the arrangement direction.

In a battery measurement apparatus, a signal control unit, provided on a first electrical path connecting electrodes of a storage battery, causes the storage battery to output a predetermined alternating-current signal or inputs a predetermined alternating-current signal to the storage battery. A response signal input unit, provided on a second electrical path connecting the electrodes, inputs a response signal of the storage battery in response to the alternating-current signal through the second electrical path. Based on the response signal, a calculating unit calculates information related to a complex impedance of the storage battery. A magnetic flux passage area, surrounded by the storage battery and the second electrical path, is formed. A size of the magnetic flux passage area is set such that an error between an actual complex impedance of the storage battery and a complex impedance calculated by the calculating unit is within a range of ±1 mΩ.

In a battery measurement apparatus, a signal control unit, provided on a first electrical path connecting electrodes of a storage battery, causes the storage battery to output a predetermined alternating-current signal or inputs a predetermined alternating-current signal to the storage battery. A response signal input unit, provided on a second electrical path connecting the electrodes, inputs a response signal of the storage battery in response to the alternating-current signal through the second electrical path. Based on the response signal, a calculating unit calculates information related to a complex impedance of the storage battery. A magnetic flux passage area, surrounded by the storage battery and the second electrical path, is formed. A size of the magnetic flux passage area is set such that an error between an actual complex impedance of the storage battery and a complex impedance calculated by the calculating unit is within a range of ±1 mΩ.

Embodiments of this application provide a battery, an electric apparatus, and a method and an apparatus for preparing a battery. The battery includes a plurality of battery cells arranged in a first direction and electrically connected to each other. At least one of two adjacent battery cells has a pressure relief mechanism. The pressure relief mechanism is disposed at an end of the battery cell in the first direction. The battery further includes a sampling member connected to the battery cells and configured to perform signal collection on the battery cells, and a protective member disposed between the two adjacent battery cells and disposed opposite the pressure relief mechanism. There is a degassing space between the protective member and the pressure relief mechanism, and the protective member is fixed to the sampling member.

Embodiments of this application provide a battery, an electric apparatus, and a method and an apparatus for preparing a battery. The battery includes a plurality of battery cells arranged in a first direction and electrically connected to each other. At least one of two adjacent battery cells has a pressure relief mechanism. The pressure relief mechanism is disposed at an end of the battery cell in the first direction. The battery further includes a sampling member connected to the battery cells and configured to perform signal collection on the battery cells, and a protective member disposed between the two adjacent battery cells and disposed opposite the pressure relief mechanism. There is a degassing space between the protective member and the pressure relief mechanism, and the protective member is fixed to the sampling member.

This application discloses a battery, an electrical device, and a method and device for manufacturing a battery. The battery includes: a plurality of battery cells arranged along a first direction, where electrode terminals are disposed on two end faces of each of the battery cells along the first direction respectively; and a busbar component, configured to connect the two electrode terminals to implement electrical connection between two battery cells. The busbar component includes a flexible bend portion. The flexible bend portion is configured to adjust a relative position between the two electrode terminals. A maximum width of the flexible bend portion along the first direction is greater than a distance between the two electrode terminals. The flexible bend portion disposed in the busbar component can be bent in various forms to meet a requirement of electrically connecting the two battery cells arranged at a variety of relative positions.

This application discloses a battery, an electrical device, and a method and device for manufacturing a battery. The battery includes: a plurality of battery cells arranged along a first direction, where electrode terminals are disposed on two end faces of each of the battery cells along the first direction respectively; and a busbar component, configured to connect the two electrode terminals to implement electrical connection between two battery cells. The busbar component includes a flexible bend portion. The flexible bend portion is configured to adjust a relative position between the two electrode terminals. A maximum width of the flexible bend portion along the first direction is greater than a distance between the two electrode terminals. The flexible bend portion disposed in the busbar component can be bent in various forms to meet a requirement of electrically connecting the two battery cells arranged at a variety of relative positions.

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 miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell casing comprises an open-ended ceramic container having a via hole providing an electrically conductive pathway extending through the container. A metal lid closes the open-end of the container. An electrode assembly housed inside the casing comprises an anode current collector deposited on an inner surface of the ceramic container in contact with the electrically conductive pathway in the via hole. An anode active material contacts the current collector and a cathode active material contacts the metal lid. A separator is disposed between the anode and cathode active materials. That way, the electrically conductive pathway serves as a negative terminal, and the lid, electrically isolated from the conductive pathway by the ceramic container, serves as a positive terminal. The negative and positive terminals are configured for electrical connection to a load.

A miniature electrochemical cell having a volume of less than 0.5 cc is described. The cell casing comprises an open-ended ceramic container having a via hole providing an electrically conductive pathway extending through the container. A metal lid closes the open-end of the container. An electrode assembly housed inside the casing comprises an anode current collector deposited on an inner surface of the ceramic container in contact with the electrically conductive pathway in the via hole. An anode active material contacts the current collector and a cathode active material contacts the metal lid. A separator is disposed between the anode and cathode active materials. That way, the electrically conductive pathway serves as a negative terminal, and the lid, electrically isolated from the conductive pathway by the ceramic container, serves as a positive terminal. The negative and positive terminals are configured for electrical connection to a load.