HEAT TRANSFER SUPPRESSION SHEET FOR ASSEMBLED BATTERY AND ASSEMBLED BATTERY

To provide a heat transfer suppression sheet for an assembled battery that is used in an assembled battery in which a plurality of battery cells are connected in series or in parallel, and can cool each battery cell during normal use while suppressing the heat transfer between the battery cells in the event of an abnormality, and the assembled battery.SOLUTION: A heat transfer suppression sheet 10 for an assembled battery is used in an assembled battery in which a plurality of battery cells are connected in series or in parallel, and is interposed between the battery cells. The heat transfer suppression sheet 10 for the assembled battery includes a heat insulating material 11 containing at least one of inorganic particles and inorganic fibers, and a covering material 12 that covers at least a part of the heat insulating material 11. At least one of the surface of the heat insulating material 11 facing the covering material 12 and the surface of the covering material 12 facing the heat insulating material 11 has a recess and a protrusion, and a gap 14 is formed between the heat insulating material 11 and the covering material 12.SELECTED DRAWING: Figure 1 【課題】複数の電池セルが直列又は並列に接続された組電池に使用され、異常時における各電池セル間の熱の伝播を抑制しつつ、通常使用時における各電池セルを冷却することができる、組電池用熱伝達抑制シート及び組電池を提供する。【解決手段】組電池用熱伝達抑制シート１０は、複数の電池セルが直列又は並列に接続される組電池に使用され、電池セル間に介在される。また、組電池用熱伝達抑制シート１０は、無機粒子及び無機繊維の少なくとも一方を含有する断熱材１１と、断熱材１１の少なくとも一部を被覆する被覆材１２と、を有する。断熱材１１における被覆材１２に対向する表面、及び被覆材１２における断熱材１１に対向する表面の少なくとも一方に凹部及び凸部を有し、断熱材１１と被覆材１２との間に空隙部１４が形成されている【選択図】図１