HEAT INSULATION SHEET FOR BATTERY PACK, AND BATTERY PACK COMPRISING SAME

Provided is a battery pack. A battery pack according to one embodiment of the present invention comprises: a plurality of battery cells having opposite main surfaces and arranged such that the main surfaces face each other; and first heat insulation sheets having heat insulation members. The first h...

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Bibliographic Details
Main Authors SON, Dae Woo, WON, Min Ho, SEO, Jae Hyung
Format Patent
LanguageEnglish
French
Korean
Published 01.12.2022
Subjects
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Summary:Provided is a battery pack. A battery pack according to one embodiment of the present invention comprises: a plurality of battery cells having opposite main surfaces and arranged such that the main surfaces face each other; and first heat insulation sheets having heat insulation members. The first heat insulation sheets are graphite sheets having opposite main surfaces and disposed between at least a portion of the battery cells having opposite main surfaces facing each other, move heat, transferred from each of the battery cells toward the main surfaces, in the surface direction, thereby lowering the temperature of the battery cells in contact with the main surfaces, and are for moving the heat predominantly in the surface direction rather than in the thickness direction perpendicular to the main surfaces in order to minimize the transfer, to the other battery cells, of heat generated in one of the battery cells in contact with one of the main surfaces. Accordingly, heat generated from a battery cell that is a heat source can be rapidly transferred while minimizing heat transfer between adjacent battery cells. L'invention concerne un bloc-batterie. Un bloc-batterie selon un mode de réalisation de la présente invention comprend : une pluralité de cellules de batterie ayant des surfaces principales opposées et agencées de telle sorte que les surfaces principales se font face ; et des premières feuilles d'isolation thermique ayant des éléments d'isolation thermique. Les premières feuilles d'isolation thermique sont des feuilles de graphite ayant des surfaces principales opposées et disposées entre au moins une partie des cellules de batterie ayant des surfaces principales opposées se faisant face, déplacent la chaleur, transférée de chacune des cellules de batterie vers les surfaces principales, dans la direction de la surface, ce qui abaisse la température des cellules de batterie en contact avec les surfaces principales, et sont destinées à déplacer la chaleur principalement dans la direction de la surface plutôt que dans la direction de l'épaisseur perpendiculaire aux surfaces principales afin de minimiser le transfert, aux autres cellules de batterie, de la chaleur générée dans l'une des cellules de batterie en contact avec l'une des surfaces principales. Par conséquent, la chaleur générée à partir d'une cellule de batterie qui est une source de chaleur peut être rapidement transférée tout en réduisant au minimum le transfert de chaleur entre des cellules de batterie adjacentes. 배터리 팩이 제공된다. 본 발명의 일 실시예에 따른 배터리 팩은 대향하는 주면을 가지며, 주면이 서로 마주보도록 배치되는 다수 개의 배터리 셀, 및 대향하는 주면을 가지며, 주면이 서로 마주보는 적어도 일부의 배터리 셀 사이에 배치되어 각각의 배터리 셀로부터 주면쪽으로 전달받은 열을 면방향으로 이동시켜서 주면에 접촉하는 배터리 셀의 온도 낮추되, 주면에 수직한 두께방향 보다 상기 면방향으로 열을 우세하게 이동시켜서 주면에 접촉하는 어느 일 배터리 셀에서 발생된 열이 다른 배터리 셀로 전달되는 것을 최소화시키기 위한 그라파이트 시트인 단열부재를 구비한 제1단열시트를 포함하여 구현된다. 이에 의하면, 발열원인 배터리 셀로부터 발생된 열이 빠르게 전달되면서도 인접한 배터리 셀 간에 열이 전달되는 것을 최소화할 수 있다.
Bibliography:Application Number: WO2022KR07506