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1. 发明申请

WO2022266595A1 CLOSED LOOP AZEOTROPE-BASED SOLVENT EXTRACTION AND RECOVERY METHOD IN THE PRODUCTION OF MICROPOROUS MEMBRANES 审中-公开
公开(公告)号：WO2022266595A1
公开(公告)日：2022-12-22
申请号：PCT/US2022/072875
申请日：2022-06-10
申请人： AMTEK RESEARCH INTERNATIONAL LLC
发明人： WATERHOUSE, Robert , ROGERS, Cory S. , HOSTETLER, Eric B. , PEKALA, Richard W.
IPC分类号： B01D3/36 , B01D11/04 , B01D67/00 , B29C48/16 , B29C48/275 , C09K5/02 , C09K5/04
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.

2. 发明申请

WO2019217759A1 ACID STRATIFICATION MITIGATION, ELECTROLYTES, DEVICES, AND METHODS RELATED THERETO 审中-公开
公开(公告)号：WO2019217759A1
公开(公告)日：2019-11-14
申请号：PCT/US2019/031630
申请日：2019-05-09
申请人： AMTEK RESEARCH INTERNATIONAL LLC
发明人： WANDERA, Daniel , WATERHOUSE, Robert , SELF, Wyatt , HOSTETLER, Eric B. , PEKALA, Richard W.
IPC分类号： H01M2/14 , H01M2/16 , B29C48/08
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.

3. 发明申请

WO2015176016A1 COVALENTLY CROSS-LINKED GEL ELECTROLYTES 审中-公开
标题翻译：共价交联凝胶电解质
公开(公告)号：WO2015176016A1
公开(公告)日：2015-11-19
申请号：PCT/US2015/031215
申请日：2015-05-15
申请人： AMTEK RESEARCH INTERNATIONAL LLC
发明人： JUNGSEUNG, Kim , WATERHOUSE, Robert R. , PEKALA, Richard W. , HOSTETLER, Eric B.
IPC分类号： H01M8/02 , H01M8/10 , B01D69/14
CPC分类号： H01M10/10 , H01M2/1606 , H01M2/164 , H01M2/1653 , H01M4/14 , H01M2300/0005 , H01M2300/0085 , H01M2300/0088 , H01M2300/0091
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 crosslinked gel electrolytes provide low ionic resistance, and increased power capacity of the battery, because the polymer networks can be formed at low concentrations (
摘要翻译：具有固定在共价交联聚合物网络内的酸的质子传导凝胶电解质和包含凝胶电解质的复合材料提供低离子电阻，使酸分层最小化并防止枝晶生长。凝胶电解质可以由溶解在浓硫酸中并随后在电池电极之间共价交联的单体形成，或者可以在水中形成共价交联的凝胶电解质并随后交换成硫酸。添加二氧化硅粉末，二氧化硅纤维或其他添加剂时，通常可以提高这些凝胶的机械性能。在一些情况下，共价交联的凝胶电解质在常规的填充有二氧化硅的聚乙烯隔膜的存在下或在低密度纤维垫内形成，以提供机械增强和电池电极之间的受控间隔。共价交联的凝胶电解质提供低离子电阻和提高电池的功率容量，因为聚合物网络可以低浓度形成（<20％固体）。

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