HEAT TRANSFER SUPPRESSION SHEET AND BATTERY PACK

• Main Authors: SONG CHI, EGUCHI MASAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 19.11.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a heat transfer suppression sheet having an excellent heat transfer suppressing effect and having a strength capable of suppressing a decrease in the thickness of a heat insulating material even when the battery cell expands, thereby maintaining high heat insulating performance.SOLUTION: A heat transfer suppression sheet 10 includes a first heat insulating material 20 and a second heat insulating material 30. The thermal conductivity of the first heat insulating material 20 is lower than the thermal conductivity of the second heat insulating material 30. The compressive strength of the second heat insulating material 30 is higher than the compressive strength of the first heat insulating material 20. The first heat insulating material 20 is held by the second heat insulating material 30.SELECTED DRAWING: Figure 1 【課題】熱伝達抑制効果に優れるとともに、電池セルが膨張した際にも、断熱材の厚さの減少を抑制可能な強度を備え、これにより高い断熱性能を維持可能な熱伝達抑制シートを提供する。【解決手段】第１の断熱材２０と、第２の断熱材３０とを含み、第１の断熱材２０の熱伝導率が、第２の断熱材３０の熱伝導率よりも低く、かつ、第２の断熱材３０の圧縮強度が、第１の断熱材２０の圧縮強度よりも高く、第１の断熱材２０が、第２の断熱材３０により挟持される熱伝達抑制シート１０。【選択図】図１