A secondary battery includes: an electrode assembly; a case including a bottom part, a pair of side parts integrally formed with the bottom part and bent so as to extend from the bottom part, and a cover part coupled to the pair of side parts to face the bottom part and including a vent, the case accommodating the electrode assembly; and a pair of cap assemblies coupled to open ends of the case to seal the case.

A secondary battery includes: an electrode assembly; a case including a bottom part, a pair of side parts integrally formed with the bottom part and bent so as to extend from the bottom part, and a cover part coupled to the pair of side parts to face the bottom part and including a vent, the case accommodating the electrode assembly; and a pair of cap assemblies coupled to open ends of the case to seal the case.

A cylindrical secondary battery includes: an electrode assembly including a first electrode plate and a second electrode plate; a can having a bottom portion and a cylindrical side portion, accommodating the electrode assembly, and electrically connected to the first electrode plate; and a cap assembly. The cap assembly includes: a cap plate coupled to one end of the side portion of the can and electrically connected to the second electrode plate; a gasket insulating the cap plate and the side portion from each other; and a sub-plate covering at least a portion of the cap plate and at least a top portion of the side portion.

A secondary battery includes: an electrode assembly; a case accommodating the electrode assembly, the case having an opening at a first end sized to accommodate the electrode assembly and a terminal hole at a second end opposite to the first end; a first current collector plate coupled to the electrode assembly; a terminal electrically coupled to the first current collector plate and extending through the terminal hole in the case; and a cap plate sealing the opening of the case.

A battery cell may include: a case, an outer surface thereof away from the interior of the battery cell may be clad with a first insulating layer; an end cap assembly, which may be disposed at an end portion of the case along the length direction of the battery cell; and an end cap patch, which may be attached to a surface of the end cap assembly away from the interior of the battery cell; wherein the end cap patch may be adhered with a second insulating layer, and the second insulating layer may be at least partially folded to the case and connected with the first insulating layer.

A battery cell may include: a case, an outer surface thereof away from the interior of the battery cell may be clad with a first insulating layer; an end cap assembly, which may be disposed at an end portion of the case along the length direction of the battery cell; and an end cap patch, which may be attached to a surface of the end cap assembly away from the interior of the battery cell; wherein the end cap patch may be adhered with a second insulating layer, and the second insulating layer may be at least partially folded to the case and connected with the first insulating layer.

A battery enclosure and method for manufacturing the same from organosheet materials. The battery enclosure includes a top cover with crossbeams integrated therein by overmolding that secures to a bottom panel to enclose a space for containing components of a battery. The bottom panel includes overmolded structural ribs to provide strength and rigidity to the bottom panel. An outer cover removably secure the top cover to the bottom panel and includes a honeycomb structure to crush upon impact and protect the battery components. The method comprises forming each of the components of the battery enclosure from a mixture of organosheets, reinforcing members, and overmolded elements to reduce the weight and complexity of manufacturing for the battery enclosure.

A battery enclosure and method for manufacturing the same from organosheet materials. The battery enclosure includes a top cover with crossbeams integrated therein by overmolding that secures to a bottom panel to enclose a space for containing components of a battery. The bottom panel includes overmolded structural ribs to provide strength and rigidity to the bottom panel. An outer cover removably secure the top cover to the bottom panel and includes a honeycomb structure to crush upon impact and protect the battery components. The method comprises forming each of the components of the battery enclosure from a mixture of organosheets, reinforcing members, and overmolded elements to reduce the weight and complexity of manufacturing for the battery enclosure.

A method of manufacturing a battery, in particular a button battery, including a case, provided with a container and a cap, and a polymer gasket, in particular made of polypropylene, compressed and bonded between the container and the cap. The method successively includes a step of implanting a silicatised layer by tribochemical sand blasting on all or part of the surface of the gasket, a step of adding a layer of adhesive to the surface of the gasket including the silicatised layer and/or on all or part of the surface of the container and of the surface of the cap intended to be joined to the gasket, a step of assembling the case with the gasket positioned by compression and bonding with the layer of adhesive between the container and the cap.

A method of manufacturing a battery, in particular a button battery, including a case, provided with a container and a cap, and a polymer gasket, in particular made of polypropylene, compressed and bonded between the container and the cap. The method successively includes a step of implanting a silicatised layer by tribochemical sand blasting on all or part of the surface of the gasket, a step of adding a layer of adhesive to the surface of the gasket including the silicatised layer and/or on all or part of the surface of the container and of the surface of the cap intended to be joined to the gasket, a step of assembling the case with the gasket positioned by compression and bonding with the layer of adhesive between the container and the cap.