A battery pack includes a battery pack housing, a plurality of battery pack terminals, and a plurality of battery cells supported within the battery pack housing. At least one battery cell includes a battery cell terminal. The battery pack also includes a compound fuse electrically coupled between the battery cell terminal of the at least one battery cell and at least one battery pack terminal. The compound fuse comprises a first material and a second material that has a lower melting point than the first material. The compound fuse includes a first portion electrically coupled to the battery cell terminal, a second portion electrically coupled to the at least one battery pack terminal, and a fuse portion that connects the first portion to the second portion. The fuse portion is configured to establish a discontinuity between the first portion and the second portion during a hard short event.

A battery module can include multiple battery cells, multiple cell tubes, and a first plate. The multiple cell tubes can accommodate the multiple battery cells within the plurality of cell tubes so that individual of the plurality of battery cells are positioned within individual of the plurality of cell tubes. Each battery cell can have a first electric pole and a second electric pole. The first plate can include a printed circuit board. The printed circuit board can include a first conductive layer and an isolating layer. The isolating layer can include at least one blind hole for wire-bonding the conductive layer to one of the battery cells.

The present invention concerns a fire safety arrangement for a battery. More particularly, but not exclusively, this invention concerns a fire safety arrangement for a metal ion battery, for example a lithium ion battery. A metal ion battery cell comprises a plurality of electrodes and an electrolyte encased within a housing. The housing comprises a safety valve or vent configured to allow gas build up within the housing to vent outside the housing. A fabric band surrounds the housing, such that the fabric band covers the safety valve or vent. This may allow gas to pass through the fabric band, but contain sparks generated by the battery cell within the fabric band.

The present invention concerns a fire safety arrangement for a battery. More particularly, but not exclusively, this invention concerns a fire safety arrangement for a metal ion battery, for example a lithium ion battery. A metal ion battery cell comprises a plurality of electrodes and an electrolyte encased within a housing. The housing comprises a safety valve or vent configured to allow gas build up within the housing to vent outside the housing. A fabric band surrounds the housing, such that the fabric band covers the safety valve or vent. This may allow gas to pass through the fabric band, but contain sparks generated by the battery cell within the fabric band.

A battery module includes a cell assembly including a plurality of battery cells, and a module housing having an arrangement space for accommodating the cell assembly and a cover plate covering a top surface of the cell assembly. The cover plate has at least one discharge hole for discharging gas generated in the cell assembly. A blocking member is disposed between the top surface of the cell assembly and the cover plate to block flame or a combustion material from being discharged externally of the module housing through the discharge hole.

A battery module includes a cell assembly including a plurality of battery cells, and a module housing having an arrangement space for accommodating the cell assembly and a cover plate covering a top surface of the cell assembly. The cover plate has at least one discharge hole for discharging gas generated in the cell assembly. A blocking member is disposed between the top surface of the cell assembly and the cover plate to block flame or a combustion material from being discharged externally of the module housing through the discharge hole.

A thermal management component, a battery, and a powered device are provided. The thermal management component includes: a set of first heat exchange surfaces, including a plurality of first heat exchange surfaces configured to cooperate with a plurality of outer battery units located on one side of the thermal management component for temperature regulation, each of the first heat exchange surfaces being configured to cooperate with one of the outer battery units for temperature regulation; and a set of second edge heat exchange surfaces, including a plurality of second edge heat exchange surfaces configured to cooperate with a plurality of intermediate battery units located on the other side of the thermal management component for temperature regulation, each of the second edge heat exchange surfaces being configured to cooperate with one of the intermediate battery units for temperature regulation.

A thermal management component, a battery, and a powered device are provided. The thermal management component includes: a set of first heat exchange surfaces, including a plurality of first heat exchange surfaces configured to cooperate with a plurality of outer battery units located on one side of the thermal management component for temperature regulation, each of the first heat exchange surfaces being configured to cooperate with one of the outer battery units for temperature regulation; and a set of second edge heat exchange surfaces, including a plurality of second edge heat exchange surfaces configured to cooperate with a plurality of intermediate battery units located on the other side of the thermal management component for temperature regulation, each of the second edge heat exchange surfaces being configured to cooperate with one of the intermediate battery units for temperature regulation.

A system includes a battery mounting area, a venting area fluidly isolated from the battery mounting area, and a battery cell arranged at least partially within the battery mounting area. The battery cell includes at least one safety vent that is fluidly coupled to the venting area.

A battery pack comprises a set of battery cells, a battery cell holder holding the battery cells, at least one battery strap having a first end connected to a terminal of one of the battery cells and a second end extending from the battery cell holder, a printed circuit board having a first side and a second side, components mounted on the second side of the printed circuit board, a trace on the second side of the printed circuit board extending from one components to a contact connected to the trace and mated with the second end of the at least one battery strap. Multiple vias extend from the first side to the second side, and the contact comprises a first portion having a through hole and a leg integrally formed with and approximately perpendicular to the first portion, the leg extending from the first side of the PCB to the second side of the PCB through a first via, the trace extending from the first via, the leg soldered to the second side of the PCB and the via and the through hole aligned with a second via adjacent to the first via, the through hole sized and configured to receive a PCB end of the strap, the PCB end of the strap soldered to the contact.