A battery module includes a thermal conductive housing. A plurality of cells are arranged within the housing. An electrically insulated bottom cell holder is located between the plurality of cells and the housing. The bottom cell holder has a network of positions in which each of the plurality of cells are inserted and held. Each of the positions has an offsetting member that creates a space between the plurality of cells and a first side of the housing. A thermal adhesive occupies the space, thereby fixing each of the plurality of cells to the housing. Other aspects are described.

A battery tray assembly includes a tray and an electrically conductive member disposed in the tray. The tray includes a mounting space configured to accommodate a battery assembly, and is electrically isolated from the battery assembly. At least a portion of the electrically conductive member is located in the mounting space. One end of the electrically conductive member is connected to a potential point. When no electrically conductive medium is disposed in the mounting space, the electrically conductive member is configured to provide a first potential signal between the battery assembly and the potential point. When the electrically conductive medium is disposed in the mounting space, the electrically conductive member connects the battery assembly to the potential point through the electrically conductive medium, to provide a second potential signal between the battery assembly and the potential point.

A secondary battery includes: an electrode assembly; a can having a lower surface and a side surface and accommodating the electrode assembly therein; a cap plate coupled to an upper end of the can; a terminal on the lower surface of the can; and an insulator having a plate-shaped portion between the electrode assembly and the lower surface of the can and a wing portion extending upwardly from a circumference of the plate-shaped portion. The wing portion has a cutout portion.

A battery use system includes a battery removably mounted on an electric power device, a charging device configured to charge the battery, and a server configured to communicate with the charging device. The charging device is configured to transmit the identification information of the battery accommodated in the accommodation unit to the server via a first communicator and control charging of the battery and/or detachment of the battery on the basis of reception information received by the first communicator from the server. The server is configured to determine whether or not the charging of the battery and/or the detachment of the battery accommodated in the accommodation unit are available on the basis of the identification information received by a second communicator from the charging device and provision information provided from an information provider and transmit transmission information on an availability determination result to the charging device via the second communicator.

A conductive module includes a first conductive member electrically connected to an electrode terminal of a battery cell; a second conductive member that electrically connects a battery monitoring unit monitoring a battery state to the first conductive member; a circuit protection member arranged between the first conductive member and the second conductive member; a first electrical connection structural body electrically connecting the first conductive member and the circuit protection member; a second electrical connection structural body electrically connecting the second conductive member and the circuit protection member; a housing member housing the circuit protection member and the first and second electrical connection structural bodies; and a mounting structure that mounts the housing member to an insulating member with the insulating member sandwiching the battery cell as a mounting target. The mounting structure includes a conductor-side engagement body which is an engagement body provided in the housing member.

The present document describes methods and systems for battery authentication. In aspects, the battery includes an identifier (ID) resistor integrated into the battery label and having at least one exposed resistor contact. The location of the resistor contact can be used for mechanical keying for identification of the battery. The ID resistor has a resistance value that corresponds to a type of the battery. To detect the ID resistor, a device can have electrical contacts (e.g., pogo pins) that are exposed in a battery housing and that electrically connect to the resistor contact(s) of the battery. The device can use a lookup table to identify the type of the battery based on the resistance value of the ID resistor. Such identification of the type of the battery enables authentication of the battery to the device and initiation of one or more functions based on whether the battery is valid.

The present document describes methods and systems for battery authentication. In aspects, the battery includes an identifier (ID) resistor integrated into the battery label and having at least one exposed resistor contact. The location of the resistor contact can be used for mechanical keying for identification of the battery. The ID resistor has a resistance value that corresponds to a type of the battery. To detect the ID resistor, a device can have electrical contacts (e.g., pogo pins) that are exposed in a battery housing and that electrically connect to the resistor contact(s) of the battery. The device can use a lookup table to identify the type of the battery based on the resistance value of the ID resistor. Such identification of the type of the battery enables authentication of the battery to the device and initiation of one or more functions based on whether the battery is valid.

A battery module includes a plurality of batteries arranged in a row, and a plurality of current collector plates electrically connected to the plurality of electric power storage devices, wherein the plurality of batteries is arranged in a direction orthogonal to a height direction of each battery. The plurality of current collector plates includes a flat plate shaped current collector main body that is inclined with respect to an arrangement direction of the plurality of batteries, and arranged in a row. The plurality of current collector plates includes a first current collector plate and a second current collector plate that are adjacent to each other, and a part of the current collector main body in the first current collector plate overlaps at least a part of the current collector main body in the second current collector plate in the height direction.

A secondary battery in which a problem in a conventional art is solved is provided. A secondary battery according to the present disclosure includes an electrode body that includes a plurality of first electrode plates, a plurality of second electrode plates, and a separator disposed between the first electrode plate and the second electrode plate, an electrolyte solution, and a case that accommodates these. The separator is bent in a zigzag manner. The separator includes a first bent part folded at an end part of the first electrode plate and a second bent part folded at an end part of the second electrode plate. A plurality of the first bent parts are disposed on one side of a pair of side surfaces of the electrode body that face each other, and a plurality of the second bent parts are disposed on the other side of the pair of side surfaces of the electrode body that face each other. The separator includes a cover part that covers outer surfaces of the plurality of first bent parts. Outer surfaces of the second bent part are not covered with the separator. In the electrode body, the separator exists on both outermost surfaces in a direction where the first electrode plates and the second electrode plates are stacked.

A secondary battery in which a problem in a conventional art is solved is provided. A secondary battery according to the present disclosure includes an electrode body that includes a plurality of first electrode plates, a plurality of second electrode plates, and a separator disposed between the first electrode plate and the second electrode plate, an electrolyte solution, and a case that accommodates these. The separator is bent in a zigzag manner. The separator includes a first bent part folded at an end part of the first electrode plate and a second bent part folded at an end part of the second electrode plate. A plurality of the first bent parts are disposed on one side of a pair of side surfaces of the electrode body that face each other, and a plurality of the second bent parts are disposed on the other side of the pair of side surfaces of the electrode body that face each other. The separator includes a cover part that covers outer surfaces of the plurality of first bent parts. Outer surfaces of the second bent part are not covered with the separator. In the electrode body, the separator exists on both outermost surfaces in a direction where the first electrode plates and the second electrode plates are stacked.