Wärmeübertragungsunterdrückungsfolie, Wärmeübertragungsunterdrückungselement und Batteriepack

Details

Veröffentlichungs-Nr.

EP4776398

Anmeldetag

16. Juli 2024

Veröffentlichung

13. März 2025

Rechtsraum

EP

Abstract

To provide a heat transfer suppression sheet capable of maintaining a heat transfer suppression effect even when a resin base material is burned out by intense heat or a flame from a battery cell undergoing thermal runaway. Also to provide a battery pack with higher safety capable of maintaining a heat transfer suppression effect even when a resin base material is burned out by intense heat or a flame from a battery cell undergoing thermal runaway. A heat transfer suppression sheet (1) contains a resin base material (10), first inorganic particles (20), and second inorganic particles (30) having a melting point lower than that of the first inorganic particles (20). In addition, a heat transfer suppression member (60) includes a heat insulation layer (50) on a surface of the heat transfer suppression sheet (1). Further, in a battery pack (100), the heat transfer suppression sheet (1) or the heat transfer suppression member (60) is interposed between battery cells (110), and the battery cells (110) are connected in series or in parallel.

Anmelder

Firma

IBIDEN CO., LTD.

Land

🇯🇵 Japan