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1.发明公开公开(公告)号：US20240363967A1
公开(公告)日：2024-10-31
申请号：US18644956
申请日：2024-04-24
发明人： Sang Yoon JI , Jun Hwan AHN , Chang Hee LEE , Jun Hyung KIM
IPC分类号： H01M50/451 , H01M50/403 , H01M50/414 , H01M50/434 , H01M50/443 , H01M50/491
CPC分类号： H01M50/451 , H01M50/403 , H01M50/414 , H01M50/434 , H01M50/443 , H01M50/491
摘要： Separators, methods for manufacturing the separators, and secondary batteries including the separators are disclosed. In one embodiment, a separator may include a porous substrate including a first surface and a second surface, and a coating layer disposed on at least one of the first surface or the second surface of the porous substrate and including inorganic particles and hollow adhesive particles.
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2.发明授权公开(公告)号：US12126046B2
公开(公告)日：2024-10-22
申请号：US18331500
申请日：2023-06-08
发明人： Chang Hee Lee , Won Sub Kwack , Tae Wook Kwon , Heung Taek Bae
IPC分类号： H01M50/446 , H01M10/052 , H01M50/403 , H01M50/417
CPC分类号： H01M50/446 , H01M10/052 , H01M50/403 , H01M50/417
摘要： A separator, a method of manufacturing the separator, and an electrochemical device including the separator with the separator including: a porous substrate; and an inorganic particle layer provided on at least one surface of the porous substrate, wherein the inorganic particle layer includes inorganic particles and a hydrolytic condensate of a silane compound.
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公开(公告)号：US20240347858A1
公开(公告)日：2024-10-17
申请号：US18682882
申请日：2022-09-06
IPC分类号： H01M50/42 , H01M10/0525 , H01M50/403 , H01M50/491
CPC分类号： H01M50/42 , H01M50/403 , H01M50/491 , H01M10/0525
摘要： Embodiments of the present disclosure generally relate to methods for preparing porous separators used in battery technology, such as within an electrochemical cell. In one or more embodiments, a method of preparing a porous separator for an electrochemical cell is provided and includes placing a mixture containing a polymer precursor composition and a porogen onto a surface and forming a polymeric film on the surface from the mixture by a polymerization process. The polymeric film contains pores distributed throughout a polymeric material. The pores are formed during the polymerization process and the porogen is disposed within the pores. In one or more examples, the polymeric film is formed by a polymerization-induced phase separation (PIPS) process and contains about 20 wt % to about 70 wt % of the porogen.
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公开(公告)号：US12119513B2
公开(公告)日：2024-10-15
申请号：US16491251
申请日：2018-04-03
发明人： Takahiko Kondo , Kazunori Uchida , Shinya Hamasaki
IPC分类号： H01M50/44 , B29C55/00 , B29C55/04 , B29C55/12 , B29K23/00 , B29K105/04 , B29L31/34 , H01M10/0525 , H01M50/403 , H01M50/406 , H01M50/417 , H01M50/457 , H01M50/489 , H01M50/491
CPC分类号： H01M50/44 , B29C55/005 , B29C55/04 , B29C55/12 , H01M10/0525 , H01M50/417 , H01M50/457 , H01M50/489 , H01M50/491 , B29K2023/12 , B29K2105/041 , B29L2031/3468 , H01M50/403 , H01M50/406
摘要： Problem: The invention provides a separator for a lithium-ion secondary battery exhibiting excellent strength, wettability with nonaqueous electrolyte solutions, voltage endurance and cycle characteristics in lithium-ion secondary batteries, and a method of increasing the puncture depth of the separator. Solution: A separator for a lithium-ion secondary battery is formed of a microporous film comprising a polyolefin resin (A) as a major component, and a resin (B), at least portions of the surfaces of the micropores in the microporous film being coated with resin (B).
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公开(公告)号：US12119512B2
公开(公告)日：2024-10-15
申请号：US17195437
申请日：2021-03-08
发明人： Daehyun Hong
IPC分类号： H01M50/403 , H01M10/052 , H01M50/426 , H01M50/434 , H01M50/446 , H01M50/449
CPC分类号： H01M50/403 , H01M10/052 , H01M50/426 , H01M50/434 , H01M50/446 , H01M50/449
摘要： A method of preparing a composite separator for a lithium battery includes: coating a binder composition on one side or both sides of a porous substrate; hot-air drying the porous substrate coated with the binder composition; and supplying a non-solvent during the hot-air drying, such that a porous layer is on one side or both sides of the porous substrate, wherein the binder composition includes a good-solvent, a binder, and inorganic particles, an amount of the non-solvent supplied during the hot-air drying is from 12 g/m3 to 17 g/m3, and a ratio (e) of the hot-air supply speed to the moving speed of the porous substrate per unit transit time in the hot-air dryer is from 2.2 to 5.0.
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6.发明公开公开(公告)号：US20240339669A1
公开(公告)日：2024-10-10
申请号：US18748159
申请日：2024-06-20
申请人： Daramic, LLC
IPC分类号： H01M10/12 , H01M4/02 , H01M50/403 , H01M50/417 , H01M50/431 , H01M50/434 , H01M50/449
CPC分类号： H01M10/12 , H01M50/403 , H01M50/417 , H01M50/431 , H01M50/434 , H01M50/449 , H01M2004/027 , Y02T10/70
摘要： New or improved battery separators for lead-acid batteries that include a carbon or mineral additive applied to the separator. In possibly preferred embodiments, the battery separator may include engineered carbon materials applied to the battery separator to modify sulfate crystal formation while decreasing the detrimental consequences of excessive gas evolution into the negative electrode itself. In one embodiment, a method of enhancing the lead-acid energy storage performance of a lead-acid battery may include delivering carbon to the negative active material surface of the battery separator where the carbon may effectively enhance charge acceptance and improve life cycle performance of a lead-acid battery.
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7.发明公开公开(公告)号：US20240332730A1
公开(公告)日：2024-10-03
申请号：US18570655
申请日：2022-05-27
申请人： SHENZHEN SENIOR TECHNOLOGY MATERIAL CO., LTD. , JIANGSU SENIOR NEW MATERIAL TECHNOLOGY CO., LTD
发明人： Dandan YANG , Xiang PING , Huizhen HUANG , Yulin LIN
IPC分类号： H01M50/403 , C08J9/36 , H01M50/417 , H01M50/434 , H01M50/449
CPC分类号： H01M50/403 , C08J9/365 , H01M50/417 , H01M50/434 , H01M50/449 , C08J2323/06
摘要： A coating slurry, a coated separator, a preparation method of the coated separator, and a battery including the coated separator are provided. The coating slurry includes: a solvent, an adhesive polymer resin, and a photoinitiator, where a weight proportion of the photoinitiator in the coating slurry is 0.08 wt % to 1.0 wt %; and the adhesive polymer resin includes one or a combination of two or more of a polyvinylidene fluoride (PVDF)-based adhesive polymer resin, a polyimide (PI), a polyetherimide (PEI), and polymethylmethacrylate (PMMA). When the weight proportion of the photoinitiator in the coating slurry is controlled at 0.08 wt % to 1.0 wt %, the photoinitiator can well penetrate into separator substrate layers after the coating slurry is coated on a membrane to ensure that enough reactive free radicals are produced by the photoinitiator in the membrane, a ceramic layer, and a combined interface layer.
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公开(公告)号：US20240313286A1
公开(公告)日：2024-09-19
申请号：US18677899
申请日：2024-05-30
发明人： Yun Bong KIM , Kyu Young CHO , Jong Sang PARK , Hye Jin LEE
IPC分类号： H01M10/54 , H01M50/403 , H01M50/431 , H01M50/443 , H01M50/446
CPC分类号： H01M10/54 , H01M50/403 , H01M50/431 , H01M50/443 , H01M50/446
摘要： Provided is a method of continuously regenerating a separator including inorganic particles. According to an embodiment of the present disclosure, method of continuously regenerating a separator including inorganic particles including: impregnating a separator of which at least a part of the surface is coated with a coating layer including inorganic particles in a water tank, and then performing a surface polishing treatment to release the coating layer 10 coated on the surface of the separator; and drying the separator from which the coating layer has been released may be provided.
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公开(公告)号：US20240313281A1
公开(公告)日：2024-09-19
申请号：US18279771
申请日：2022-08-11
发明人： Gyu-Ok HWANG
IPC分类号： H01M10/52 , H01M50/403 , H01M50/449 , H01M50/46 , H01M50/491
CPC分类号： H01M10/52 , H01M50/403 , H01M50/449 , H01M50/461 , H01M50/491
摘要： A cell for a secondary battery and a method for manufacturing the same. The cell for a secondary battery includes at least one negative electrode and at least one positive electrode. Each negative electrode and positive electrode are stacked alternately with a separator interposed therebetween, wherein at least one separator includes a plurality of coated portions on at least one surface spaced apart from one another, and each coated portion includes a gas adsorbent and an adhesive binder. According to the cell for a secondary battery and method for manufacturing the same, it is possible to minimize gases trapped in the cell of the secondary battery and to ensure the adhesion between the separator and the electrodes.
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公开(公告)号：US12095033B2
公开(公告)日：2024-09-17
申请号：US17295941
申请日：2020-03-19
发明人： Jung-Pil Lee , Eun-Bee Kim , Eun-Kyung Mok
IPC分类号： H01M10/0565 , H01M10/0525 , H01M10/058 , H01M10/42 , H01M50/403 , H01M50/409 , H01M50/414 , H01M50/431 , H01M50/446 , H01M50/491 , H01M50/497
CPC分类号： H01M10/0565 , H01M10/0525 , H01M10/058 , H01M10/4235 , H01M50/403 , H01M50/409 , H01M50/414 , H01M50/431 , H01M50/446 , H01M50/491 , H01M50/497 , H01M2300/0068 , H01M2300/0071 , H01M2300/0082 , H01M2300/0088 , H01M2300/0094
摘要： Methods for manufacturing a solid electrolyte membrane are provided, which allow visual determination of how much a porous sheet is filled with a solid electrolyte material, and thus can optimize selection of materials and manufacturing processes of a solid electrolyte membrane in a simple manner. The resulting solid electrolyte membrane can reduce the manufacturing cost and allow easy deformation, and thus can be processed with ease when it is applied to batteries having various shapes. Further, since the solid electrolyte membrane according to the present disclosure includes a composite of a porous polymer material, such as a nonwoven web, with a solid electrolyte material, it has excellent strength and allows formation of a thin film, and thus provides a battery with improved energy density advantageously.
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