In some examples, a high-energy-density battery pack device includes a circuit board and at least two casing structures mounted on the circuit board. In some examples, the high-energy-density battery pack device also includes at least two cells electrically connected in series or in parallel through the circuit board. In some examples, each cell of the at least two cells is positioned in a casing structure of the at least two casing structures. In some examples, the respective casing structure surrounds the respective cell with an opening on one end of the cell.

A battery tray for mounting a battery for driving a vehicle includes a bottom; a peripheral wall erected on an outer circumference of the bottom; a flange connected to a top of the peripheral wall and extending outwards of the peripheral wall; a first inner wall connected to the bottom, a bending angle between the first inner wall and the bottom being between 90 degrees and 135 degrees; a second inner wall connected to the bottom, a bending angle between the second inner wall and the bottom being between 90 degrees and 135 degrees; and a stud bolt pedestal connected to both the first inner wall and the second inner wall and provided above the bottom. The bottom, the peripheral wall, the flange, the first inner wall, the second inner wall, and the stud bolt pedestal being integrally molded from fiber reinforced plastics containing discontinuous fibers.

Shielding articles are disclosed. One shielding article includes a fire retardancy element/fire propagation reduction element, which includes a pair of flexible graphite outer layers and a core, where the flexible graphite outer layers are on opposing sides of the core. The core may include one or more fire retardant elements or insulation materials. Also disclosed are battery packs that include the shielding articles. The shielding articles can be applied in any system that reduced fire propagation would be desirable.

A system includes a cell support and an insulator. The cell support has an opening defined therethrough. The opening is configured to have a battery cell positioned at least partially therein. The insulator is positioned at least partially within the opening. The insulator is configured to be positioned between the battery cell and the cell support such that the insulator electrically-insulates the cell support from the battery cell.

Provided are a tray for a secondary battery, which is environmentally friendly and can reduce the manufacturing cost while improving formability of the tray, and a jig for forming the tray. The tray includes a series of receiving spaces for receiving a series of cylindrical secondary batteries, and a flange portion at an outer part of the receiving space. Each receiving space includes a bottom surface configured to support one cylindrical secondary battery, a series of fixing ribs protruding upwardly from the bottom surface, and a series of bridges protruding upwardly from the bottom surface. The fixing ribs are spaced apart from each other and spaced around an outer portion of the bottom surface. Each bridge of the series of bridges connects adjacent fixing ribs.

Fire protection materials comprising an endothermic hydrate, an intumescent, a heat resistant fiber and an elastomeric polymer. In various embodiments, endothermic hydrate comprises aluminum trihydrate, the intumescent comprises expandable graphite, and the heat resistant fiber comprises poly(p-phenylene terephthalamide). The elastomeric polymer may be a polyorganosiloxane, such as a phenyl substituted polydimethyl siloxane. Also described are structures comprising such fire protection materials, e.g., separators and other battery containment structures such as for use with high density lithium batteries.

Fire protection materials comprising an endothermic hydrate, an intumescent, a heat resistant fiber and an elastomeric polymer. In various embodiments, endothermic hydrate comprises aluminum trihydrate, the intumescent comprises expandable graphite, and the heat resistant fiber comprises poly(p-phenylene terephthalamide). The elastomeric polymer may be a polyorganosiloxane, such as a phenyl substituted polydimethyl siloxane. Also described are structures comprising such fire protection materials, e.g., separators and other battery containment structures such as for use with high density lithium batteries.

A battery for a motor vehicle includes at least one cell assembly with a large number of battery cells, wherein the battery cells each have a cell housing with a degassing element for discharging a hot gas produced in the cell housing in the event of a fault, a battery housing with housing walls which enclose a receiving space for receiving the at least one cell assembly, and a deactivation device which is arranged in the receiving space of the battery housing and has at least one sleeve which is filled with a combustion-promoting agent, wherein the sleeve, when it is acted on by the hot gas discharged from at least one battery cell, is configured to release the combustion-promoting agent.

A battery for a motor vehicle includes at least one cell assembly with a large number of battery cells, wherein the battery cells each have a cell housing with a degassing element for discharging a hot gas produced in the cell housing in the event of a fault, a battery housing with housing walls which enclose a receiving space for receiving the at least one cell assembly, and a deactivation device which is arranged in the receiving space of the battery housing and has at least one sleeve which is filled with a combustion-promoting agent, wherein the sleeve, when it is acted on by the hot gas discharged from at least one battery cell, is configured to release the combustion-promoting agent.

This disclosure relates to a battery assembly with an aluminum (Al) alloy, ceramic coated header plate. An example battery assembly includes a plate, which may be referred to as a header plate, configured to support an electrical connector. The plate includes aluminum (Al) alloy and is coated with a layer of ceramic material.