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公开(公告)号：US20220294080A1
公开(公告)日：2022-09-15
申请号：US17631616
申请日：2021-03-12
发明人： Xun Zhang , Yusuke Akita , Hayato Matsuyama , Hiromi Kobayashi
IPC分类号： H01M50/457 , H01M50/417 , H01M50/443 , H01M50/451 , H01M50/434 , H01M50/491 , H01M50/42 , H01M50/426 , H01G11/52 , C08L23/06
摘要： The purpose of the present disclosure is to provide: a safer polyolefin microporous membrane; an electricity storage device separator, electricity storage device assembly kit, and electricity storage device using the polyolefin microporous membrane; and an electricity storage device. In one embodiment, the polyolefin microporous membrane comprises at least one of each of a layer A and a layer B, a polyolefin contained in at least one of the layer A and the layer B has one or more types of functional groups, and a crosslinked structure is formed by (1) the functional groups undergoing condensation reactions with each other, (2) the functional group reacting with a chemical substance inside the electricity storage device, or (3) the functional group reacting with a different type of functional group, after accommodation in the electricity storage device. In another embodiment, the polyolefin contained in at least one of the layer A and the layer B has one or more types of functional groups, and the functional groups include functional groups that undergo condensation reactions with each other inside the electricity storage device to form a crosslinked structure by siloxane bond.
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公开(公告)号：US20240117163A1
公开(公告)日：2024-04-11
申请号：US18269071
申请日：2021-12-24
CPC分类号： C08L23/06 , C08J3/005 , C08J3/126 , C08L23/12 , C08J2323/06 , C08J2323/12 , C08J2423/06 , C08J2491/06 , C08L2205/025 , C08L2205/03 , C08L2207/062 , C08L2207/066 , C08L2207/324
摘要： According to the present disclosure, a resin raw material composition comprising resin pellets, a powder and a liquid component is provided. The resin raw material composition is a resin raw material composition for molding use or a resin raw material composition for microporous membranes. The resin raw material composition comprises granular bodies in each of which the liquid component is coated on at least a portion of the surface of each of the resin pellets and the powder is adhered to the liquid component.
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公开(公告)号：US20240347856A1
公开(公告)日：2024-10-17
申请号：US18034473
申请日：2021-10-29
发明人： Xun Zhang , Makoto Ikeda , Yusuke Akita , Hayato Matsuyama
IPC分类号： H01M50/417 , H01M4/02 , H01M4/38 , H01M4/525 , H01M10/0568 , H01M10/0569 , H01M50/406 , H01M50/426 , H01M50/451
CPC分类号： H01M50/417 , H01M4/386 , H01M4/525 , H01M10/0568 , H01M10/0569 , H01M50/406 , H01M50/426 , H01M50/451 , H01M2004/027 , H01M2004/028
摘要： The present invention provides a separator for nonaqueous secondary batteries, said separator comprising a silicon-containing (Si-containing) molecule. With respect to an Si-containing image of this separator for nonaqueous secondary batteries as detected by time-of-flight secondary ion mass spectrometry (TOF-SIMS), the Voronoi area (mu) of the most frequent ones among Voronoi polygons that are obtained by Voronoi tessellation of the Si-containing image is within the range of from 1.0 μm2 to 17.5 μm2 or within the range of from 6.0 μm2 to 12.0 μm2 and the spread (σ) of the Voronoi area frequency distribution of the Si-containing image as detected by TOF-SIMS is within the range of from 0.5 μm2 to 8.5 μm2.
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公开(公告)号：US20220294076A1
公开(公告)日：2022-09-15
申请号：US17630242
申请日：2021-04-13
发明人： Xun Zhang , Hayato Matsuyama , Tetsushi Nakao
IPC分类号： H01M50/403 , H01M10/0525 , H01M50/417
摘要： Provided is a method for producing a separator for a power storage device, the method including: a step for extruding powdered polyethylene, pelletized polypropylene, and a plasticizer into a sheet form using an extruder to form a molded body; and a step for making the molded body porous by a wet method.
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