Method for manufacturing heat transfer suppressing sheet and method for manufacturing battery pack

• Main Authors: TAKAHASHI NAOKI, ANDO HISASHI
• Format: Patent
• Language: Chinese; English
• Published: 12.09.2023
• Subjects: ARTIFICIAL STONE; BASIC ELECTRIC ELEMENTS; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; ELECTRICITY; LIME, MAGNESIA; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

Provided are: a method for producing a heat transfer suppressing sheet which has an excellent heat transfer suppressing effect, while having excellent retaining properties of inorganic particles and excellent shape retaining properties at high temperatures; and a method for producing a battery pack in which the heat transfer suppressing sheet is sandwiched between battery cells. A heat transfer suppressing sheet (10) includes inorganic particles (20), first inorganic fibers (30), and second inorganic fibers (31). The first inorganic fibers (30) are amorphous fibers, and the second inorganic fibers (31) include at least one selected from the group consisting of amorphous fibers having a higher glass transition temperature than the first inorganic fibers (30) and crystalline fibers. 本发明提供热传递抑制效果优异并且无机颗粒的保持性及高温时的形状保持性优异的热传递抑制片的制造方法、以及将该热传递抑制片夹设在电池单体之间而成的电池组的制造方法。热传递抑制片(10)包含无机颗粒(20)、第1无机纤维(30)、以及第2无机纤维(31)。第1无机纤维(30)为非晶纤维，第2无机纤维(31)包含选自玻璃化转变温度高于第1无机纤维(30)的非晶纤维、以及结晶纤维中的至少一种。