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公开(公告)号:US11777124B2
公开(公告)日:2023-10-03
申请号:US17194417
申请日:2021-03-08
Applicant: University of South Carolina
Inventor: Laura A. Murdock , Fei Huang , Brian C. Benicewicz
CPC classification number: H01M8/103 , C08J5/18 , C08K3/32 , C25B13/08 , H01M8/1004 , C08J2379/04 , C08K2003/329 , H01M2008/1095 , H01M2300/0082
Abstract: The current disclosure teaches one to achieve PBI membranes with high ionic conductivity and low mechanical creep for the first time. This is in contrast to previous teachings of PBI membrane fabrication methods, which yield PBIs with either high ionic conductivity and high mechanical creep or low ionic conductivity and low mechanical creep. The membranes produced according to the disclosed process provide doped membranes for applications in fuel cells and electrolysis devices such as electrochemical separation devices.
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公开(公告)号:US20210280883A1
公开(公告)日:2021-09-09
申请号:US17194417
申请日:2021-03-08
Applicant: University of South Carolina
Inventor: Laura A. Murdock , Fei Huang , Brian C. Benicewicz
IPC: H01M8/103 , H01M8/1004 , C25B13/08 , C08J5/18 , C08K3/32
Abstract: The current disclosure teaches one to achieve PBI membranes with high ionic conductivity and low mechanical creep for the first time. This is in contrast to previous teachings of PBI membrane fabrication methods, which yield PBIs with either high ionic conductivity and high mechanical creep or low ionic conductivity and low mechanical creep. The membranes produced according to the disclosed process provide doped membranes for applications in fuel cells and electrolysis devices such as electrochemical separation devices.
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公开(公告)号:US11884787B2
公开(公告)日:2024-01-30
申请号:US17522160
申请日:2021-11-09
Applicant: UNIVERSITY OF SOUTH CAROLINA
Inventor: Laura A. Murdock , Lihui Wang , Fei Huang , Brian C. Benicewicz
CPC classification number: C08J5/2256 , B01D67/0011 , B01D67/0013 , B01D67/0093 , B01D2323/30 , B01D2323/40 , B01D2325/02 , B01D2325/42 , C08J2379/04
Abstract: A novel process for making PBI films starting from gel PBI membranes polymerized and casted in the PPA process wherein acid-imbibed gel PBIs are neutralized in a series of water baths and undergo controlled drying in association with a substrate material, yielding a PBI film without the use of organic solvents.
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公开(公告)号:US11180621B2
公开(公告)日:2021-11-23
申请号:US16569983
申请日:2019-09-13
Applicant: University of South Carolina
Inventor: Laura A. Murdock , Fei Huang , Lihui Wang , Brian C. Benicewicz
Abstract: A novel process for making PBI films starting from gel PBI membranes polymerized and casted in the PPA process wherein acid-imbibed gel PBIs are neutralized in a series of water baths and undergo controlled drying in association with a substrate material, yielding a PBI film without the use of organic solvents.
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公开(公告)号:US12227627B2
公开(公告)日:2025-02-18
申请号:US18535450
申请日:2023-12-11
Applicant: UNIVERSITY OF SOUTH CAROLINA
Inventor: Laura A. Murdock , Lihui Wang , Fei Huang , Brian C. Benicewicz
Abstract: Novel PBI films which may be used in electrochemical cells, such as redox flow batteries, are disclosed. Additionally, disclosed herein are membranes which comprise the novel PBI films which may be free from an organic solvent, and have a tensile strength at break of at least 25 MPa after drying.
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公开(公告)号:US20200087473A1
公开(公告)日:2020-03-19
申请号:US16569983
申请日:2019-09-13
Applicant: University of South Carolina
Inventor: Laura A. Murdock , Fei Huang , Lihui Wang , Brian C. Benicewicz
Abstract: A novel process for making PBI films starting from gel PBI membranes polymerized and casted in the PPA process wherein acid-imbibed gel PBIs are neutralized in a series of water baths and undergo controlled drying in association with a substrate material, yielding a PBI film without the use of organic solvents.
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