COMPOSITE TYPE HEAT INSULATOR AND METHOD FOR PRODUCING THE SAME

    公开(公告)号:US20220018485A1

    公开(公告)日:2022-01-20

    申请号:US17299992

    申请日:2020-03-06

    IPC分类号: F16L59/02 B32B5/02 B32B9/04

    摘要: Provided are a composite type heat insulator having an excellent heat insulating properties at high temperatures regardless of its thin body, and a method for producing the same. The composite type heat insulator comprises a first and a second cloths composed of silica fibers having a hydroxyl group; and a heat insulating layer sandwiched between the first and the second cloths. The heat insulating layer contains a silica aerogel and silica staple fibers having a fiber length of 0.5 to 5 mm. The heat insulating layer may optionally contain an infrared absorber and/or a film-forming inorganic binder.

    THERMAL RUNAWAY SUPPRESSION SHEET AND BATTERY PACK AND/OR BATTERY MODULE USING THE SAME

    公开(公告)号:US20240250334A1

    公开(公告)日:2024-07-25

    申请号:US18593084

    申请日:2024-03-01

    摘要: Provided are a thermal runaway suppression sheet with maximum thickness of 3 mm or less and capable of insulating to temperature at which a propagation of thermal runaway in a lithium ion battery can be suppressed, and a battery pack and a battery module. The thermal runaway suppression sheet includes a thermal energy consumption layer containing a silica-based inorganic fiber having a hydroxyl group, and a thermal diffusion layer having a thermal conductivity in the planar direction that is 10 to 200 times as high as the thermal conductivity in the thickness direction. The thermal runaway suppression sheet has a thickness of 3 mm or less. When the thermal runaway suppression sheet is locally heated, the thermal energy consumption effect based on the silica-based inorganic fibers contained in the thermal energy consumption layer can be efficiently utilized by the thermal conduction along the planar direction of the thermal diffusion layer.