A deep-sea battery apparatus and a method for assembling the deep-sea battery apparatus. The deep-sea battery apparatus includes a casing, an upper cover), a battery pack, a pressure compensation assembly, and a fastening plate assembly. The upper cover is sealingly connected to a top of the casing, the battery pack is disposed inside the casing, the pressure compensation assembly is disposed in the casing and on a side of the battery pack, and the fastening plate assembly is annular in shape and sealingly sleeved and connected at a connection between the casing and the upper cover.

A deep-sea battery apparatus and a method for assembling the deep-sea battery apparatus. The deep-sea battery apparatus includes a casing, an upper cover), a battery pack, a pressure compensation assembly, and a fastening plate assembly. The upper cover is sealingly connected to a top of the casing, the battery pack is disposed inside the casing, the pressure compensation assembly is disposed in the casing and on a side of the battery pack, and the fastening plate assembly is annular in shape and sealingly sleeved and connected at a connection between the casing and the upper cover.

A battery module has a housing element made of a metallic material and a cover element made of a metallic material, which elements are connected to one another by a plurality of screw connections such that, by forming a common interior configured to receive a plurality of battery cells, an electrical contact is made between the housing element and the cover element. The housing element or the cover element also forms a rib, and a direct mechanical contact is made between the rib of the housing element and the cover element or rib of the cover element and the housing element. A first sealing element is arranged between the housing element and the cover element such that the interior is fluidically sealed against the environment, with the plurality of screw connections and the rib being arranged outside of the first sealing element.

A traction battery pack assembly includes, among other things, first and second pieces of an enclosure having an interior area. An attachment rim is disposed at a periphery of the first piece. The attachment rim has a stand-off that includes a platform portion and turned flange. The platform portion extends outward from the interior area in a first direction. The platform portion provides an aperture. The turned flange extends away from the platform portion in a second direction and terminates at an end face. The second direction is transverse to the first direction. The aperture is configured to receive a fastener that clamps the end face against the second piece.

A traction battery pack assembly includes, among other things, first and second pieces of an enclosure having an interior area. An attachment rim is disposed at a periphery of the first piece. The attachment rim has a stand-off that includes a platform portion and turned flange. The platform portion extends outward from the interior area in a first direction. The platform portion provides an aperture. The turned flange extends away from the platform portion in a second direction and terminates at an end face. The second direction is transverse to the first direction. The aperture is configured to receive a fastener that clamps the end face against the second piece.

A battery pack includes: battery cells each including first and second end portions that are opposite each other in a length direction; a case providing an accommodation space in which each battery cell and a cooling fluid for cooling the battery cell are located, the case including a first cover covering the first end portion of the battery cell, the first cover including a first terminal hole through which the first end portion of the battery cell is partially exposed; and first and second sealing members doubly surrounding the first terminal hole from an outside of the first terminal hole to block a cooling fluid leakage passage formed through the first terminal hole. Therefore, while improving heat-dissipating performance, a cooling fluid sealing structure may be provided to the battery pack to prevent cooling fluid leakage from the accommodation space in which the battery cells are accommodated.

A battery pack includes: battery cells each including first and second end portions that are opposite each other in a length direction; a case providing an accommodation space in which each battery cell and a cooling fluid for cooling the battery cell are located, the case including a first cover covering the first end portion of the battery cell, the first cover including a first terminal hole through which the first end portion of the battery cell is partially exposed; and first and second sealing members doubly surrounding the first terminal hole from an outside of the first terminal hole to block a cooling fluid leakage passage formed through the first terminal hole. Therefore, while improving heat-dissipating performance, a cooling fluid sealing structure may be provided to the battery pack to prevent cooling fluid leakage from the accommodation space in which the battery cells are accommodated.

A battery module includes a cell unit, including a plurality of battery cells disposed on both surfaces of a unit plate, and a case accommodating the cell unit and provided with a cooling device on at least one surface of the case. The unit plate includes a plurality of receiving spaces formed by a plate portion, having a flat surface, and a side portion protruding upwardly and downwardly of the plate portion from both sides of the plate portion. The plurality of battery cells are received in each of the receiving spaces.

A battery system with a passive thermal management system is formed from a plurality of battery cells arranged on a printed circuit board assembly. The printed circuit board assembly may include a flexible printed circuit board that is folded along an axis forming an upper and lower portion of the printed circuit board assembly. The thermal management system may include fire-blocking foam members individually attached to each battery cell along with flame-suppressant grease arranged between the battery cells. The battery cells may be arranged in a grid-like pattern to allow for a spacing arrangement between the battery cells to keep a failing battery cell from negatively affecting an adjacent battery cell. The flexible printed circuit card may include a fuse for each battery cell to shut off any current flow to a faulty battery cell if it begins to fail. The battery system may be a conformal wearable battery.

A battery system with a passive thermal management system is formed from a plurality of battery cells arranged on a printed circuit board assembly. The printed circuit board assembly may include a flexible printed circuit board that is folded along an axis forming an upper and lower portion of the printed circuit board assembly. The thermal management system may include fire-blocking foam members individually attached to each battery cell along with flame-suppressant grease arranged between the battery cells. The battery cells may be arranged in a grid-like pattern to allow for a spacing arrangement between the battery cells to keep a failing battery cell from negatively affecting an adjacent battery cell. The flexible printed circuit card may include a fuse for each battery cell to shut off any current flow to a faulty battery cell if it begins to fail. The battery system may be a conformal wearable battery.