公开(公告)号：US20170114196A1

公开(公告)日：2017-04-27

申请号：US15318225

申请日：2015-06-12

Applicant: Thomas HÄRING ,  UNIVERSITÄT STUTTGART - INSTITUT FÜR CHEMISCHE VERFAHRENSTECHNIK ,  UNIVERSITÄT STUTTGART

Inventor： Thomas HÄRING ,  Jochen KERRES ,  Carlo MORANDI

IPC: C08J5/22 ,  H01M8/1027 ,  H01M2/16 ,  C08J3/24 ,  H01M8/1034 ,  H01M8/1039 ,  C25B13/08 ,  B01D71/62 ,  H01M8/1032

CPC classification number: C08J5/2262 ,  B01D71/62 ,  B01D71/76 ,  B01D2325/40 ,  B01D2325/42 ,  C08J3/246 ,  C08J5/2256 ,  C08J2371/10 ,  C08J2371/12 ,  C08J2379/04 ,  C08J2379/08 ,  C08J2381/06 ,  C08J2425/04 ,  C08J2471/10 ,  C08J2471/12 ,  C08J2479/04 ,  C08J2481/06 ,  C25B13/08 ,  H01M2/145 ,  H01M2/1653 ,  H01M8/1018 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/1034 ,  H01M8/1039 ,  H01M8/1081 ,  H01M8/1088 ,  Y02P70/56

Abstract: Described is a method for producing covalently and/or ionically cross-linked blend membranes from a halomethylated polymer, a polymer comprising tertiary N-basic groups, preferably polybenzimidazole, and, optionally, a polymer comprising cation exchanger groups such as sulfonic acid groups or phosphonic acid groups. The membranes can be tailor-made in respect of the properties thereof and are suitable, for example, for use as cation exchanger membranes or anion exchanger membranes in low-temperature fuel cells or low-temperature electrolysis or in redox flow batteries, or—when doped with proton conductors such as phosphoric acid or phosphonic acid—for use in medium-temperature fuel cells or medium-temperature electrolysis.

公开(公告)号：US20230014901A1

公开(公告)日：2023-01-19

申请号：US17777397

申请日：2020-11-17

Applicant: UNIVERSITÄT STUTTGART

Inventor： Jochen KERRES ,  Vladimir ATANASOV ,  Hyeongrae CHO

IPC: C08J7/12 ,  C08J5/22 ,  H01M8/1039 ,  H01M8/1032 ,  H01M8/18 ,  B01J47/12 ,  B01J41/07 ,  B01J41/14 ,  C25B13/08 ,  B01D71/82 ,  B01D71/32 ,  B01D67/00 ,  B01D61/44

Abstract: The present invention relates to new anion exchange polymers and (blend) membranes made from polymers containing highly fluorinated aromatic groups by means of nucleophilic substitution and processes for their production by means of nucleophilic aromatic substitution and their areas of application in membrane processes, in particular in electrochemical membrane processes such as fuel cells, electrolysis and redox flow batteries.

公开(公告)号：US20200023348A1

公开(公告)日：2020-01-23

申请号：US16312975

申请日：2017-06-22

Applicant: Thomas HÄRING ,  between Lizenz GmbH ,  UNIVERSITÄT STUTTGART

Inventor： Jochen KERRES

IPC: B01J41/13 ,  B01J41/14 ,  C08J5/22 ,  H01M8/1025 ,  C25B13/08 ,  H01M8/1032 ,  H01M8/18 ,  B01D71/28 ,  B01D71/52 ,  B01D71/68 ,  B01D69/02

Abstract: The invention relates to: —anion exchange blend membranes consisting the following blend components: —a halomethylated polymer (a polymer with —(CH2)x—CH2—Hal groups, Hal=F, Cl, Br, I; x=0-12), which is quaternised with a tertiary or a n-alkylated/n-arylated imidazole, an N-alkylated/N-arylated benzimidazole or an N-alkylated/N-arylated pyrazol to form an anion exchanger polymer. —an inert matrix polymer in which the anion exchange polymer is embedded and which is optionally covalently crosslinked with the halomethylated precursor of the anion exchanger polymer, —a polyethyleneglycol with epoxide or halomethyl terminal groups which are anchored by reacting with N—H-groups of the base matrix polymer using convalent cross-linking —optionally an acidic polymer which forms with the anion-exchanger polymer an ionic cross-linking (negative bound ions of the acidic polymer forming ionic cross-linking positions relative to the positive cations of the anion-exchanger polymer) —optionally a sulphonated polymer (polymer with sulphate groups —SO2Me, Me=any cation), which forms with the halomethyl groups of the halomethylated polymer convalent crosslinking bridges with sulfinate S-alkylation. The invention also relates to a method for producing said membranes, to the use of said membranes in electrochemical energy conversion processes (e.g. Redox-flow batteries and other flow batteries, PEM-electrolyses, membrane fuel cells), and in other membrane methods (e.g. electrodialysis, diffusion dialysis).