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1.发明公开公开(公告)号：US20240207790A1
公开(公告)日：2024-06-27
申请号：US18558064
申请日：2022-06-10
IPC分类号： B01D67/00 , B01D53/04 , B01D69/06 , B01D71/26 , H01M50/403 , H01M50/417 , H01M50/463
CPC分类号： B01D67/003 , B01D53/04 , B01D67/0018 , B01D67/0027 , B01D69/06 , B01D71/261 , H01M50/403 , H01M50/417 , H01M50/463 , B01D2259/4009 , B01D2323/219 , B01D2323/60
摘要： An environmentally friendly closed loop manufacturing process (101, 102) produces microporous membranes (32) by cast or extrusion of polymer-plasticizer mixtures followed by non-porous film formation (20), extraction (22) of the plasticizer using an azeotrope solvent and thereby forming a solvent-laden sheet and a mixture of plasticizer and azeotrope solvent, distillation (28) of the mixture to separate the plasticizer and azeotrope solvent for reuse, evaporation (30) of the azeotrope solvent from the solvent-laden sheet to form the micropores, and capture of the resultant solvent vapor for subsequent adsorption-desorption of the azeotrope solvent from activated carbon (34) or by vapor condensation (36) for reuse in the manufacturing process. The azeotrope solvent is at least a two-component mixture of solvents, one of which is designed for efficient removal of the plasticizer, while the other component(s) render(s) the azeotrope solvent non-flammable.
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公开(公告)号：US20240222702A1
公开(公告)日：2024-07-04
申请号：US18537317
申请日：2023-12-12
IPC分类号： H01M10/0565 , H01M10/0567 , H01M10/0569 , H01M50/414 , H01M50/417 , H01M50/42 , H01M50/423 , H01M50/446 , H01M50/449 , H01M50/457 , H01M50/491
CPC分类号： H01M10/0565 , H01M10/0567 , H01M10/0569 , H01M50/414 , H01M50/417 , H01M50/42 , H01M50/423 , H01M50/446 , H01M50/449 , H01M50/457 , H01M50/491 , H01M2300/0011 , H01M2300/0091
摘要： Methods of reducing acid stratification with an acid-soluble and acid-stable polymer with a high molecular weight are disclosed herein. Electrolytes and separators for an energy storage device are disclosed herein. The separator includes a coating containing an acid-soluble and acid-stable polymer with a high molecular weight. The electrolyte includes sulfuric acid and an acid-soluble and acid-stable polymer with a high molecular weight. Methods of making the separators disclosed herein and methods of making batteries are also disclosed herein.
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公开(公告)号：US11894517B2
公开(公告)日：2024-02-06
申请号：US17093470
申请日：2020-11-09
IPC分类号： H01M10/0565 , H01M50/417 , H01M50/446 , H01M10/0567 , H01M10/0569 , H01M50/449 , H01M50/414 , H01M50/42 , H01M50/423 , H01M50/457 , H01M50/491
CPC分类号： H01M10/0565 , H01M10/0567 , H01M10/0569 , H01M50/414 , H01M50/417 , H01M50/42 , H01M50/423 , H01M50/446 , H01M50/449 , H01M50/457 , H01M50/491 , H01M2300/0011 , H01M2300/0091
摘要： Methods of reducing acid stratification with an acid-soluble and acid-stable polymer with a high molecular weight are disclosed herein. Electrolytes and separators for an energy storage device are disclosed herein. The separator includes a coating containing an acid-soluble and acid-stable polymer with a high molecular weight. The electrolyte includes sulfuric acid and an acid-soluble and acid-stable polymer with a high molecular weight. Methods of making the separators disclosed herein and methods of making batteries are also disclosed herein.
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公开(公告)号：US20210265660A1
公开(公告)日：2021-08-26
申请号：US17093470
申请日：2020-11-09
IPC分类号： H01M10/0565 , H01M10/0569 , H01M50/446 , H01M50/417 , H01M10/0567
摘要： Methods of reducing acid stratification with an acid-soluble and acid-stable polymer with a high molecular weight are disclosed herein. Electrolytes and separators for an energy storage device are disclosed herein. The separator includes a coating containing an acid-soluble and acid-stable polymer with a high molecular weight. The electrolyte includes sulfuric acid and an acid-soluble and acid-stable polymer with a high molecular weight. Methods of making the separators disclosed herein and methods of making batteries are also disclosed herein.
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公开(公告)号：US10199692B2
公开(公告)日：2019-02-05
申请号：US15352383
申请日：2016-11-15
摘要： Proton-conducting gel electrolytes with acid immobilized within a covalently cross-linked polymer network and composites containing the gel electrolytes provide low ionic resistance, minimize acid stratification, and prevent dendrite growth. The gel electrolytes can be formed from monomers dissolved in concentrated sulfuric acid and subsequently covalently cross-linked between the battery electrodes, or the covalently cross-linked gel electrolytes can be formed in water and subsequently exchanged into sulfuric acid. The mechanical properties of these gels can often be enhanced with the addition of silica powder, silica fiber, or other additives. In some cases, the covalently cross-linked gel electrolytes are formed in the presence of a conventional silica-filled polyethylene separator or within a low density fiber mat to provide mechanical reinforcement and controlled spacing between the battery electrodes. The covalently cross-linked gel electrolytes provide low ionic resistance, and increased power capacity of the battery, because the polymer networks can be formed at low concentrations (
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