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US 2025/0062446 A1Published application
Battery pack having improved safety
AssigneeLG Energy Solution, Ltd.
InventorsJong Pil JEON, Hyoung Suk LEE, Min Bum KIM, Ju Hwan SHIN
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Abstract
Disclosed herein relates to a battery pack, wherein the battery pack has an advantage that in the event of thermal runaway in any of a plurality of cell stack assemblies accommodated therein, the propagation of the generated heat or flame to adjacent assemblies can be minimized, thereby improving the safety of the battery pack against ignition or explosion.
Claims11
A battery pack accommodating at least one cell stack assembly, comprising:
- a pack case containing a base plate including a cell stack region in which the at least one cell stack assembly is located;
- and a side pack frame coupled by extending vertically along an edge of the base plate to enclose the cell stack region, and
- a pack case cover positioned at an upper part of the at least one cell stack assembly located in the cell stack region and coupled to an upper end part of the pack case,
- wherein the at least one cell stack assembly comprises an isolation member including a heat-resistant plastic matrix on an outer side thereof, and
- wherein the isolation member does not melt and form droplets or holes upon contact with a flame of 800 to 1000° C. for at least five minutes.
2 more elements
Dependencies are inferred from the claim text.