公开(公告)号：US20250041843A1

公开(公告)日：2025-02-06

申请号：US18783818

申请日：2024-07-25

Applicant: Versogen, Inc.

Inventor： Yushan Yan ,  Junhua Wang ,  Keda Hu ,  Lan Wang

IPC: B01J41/13 ,  H01M8/10 ,  H01M8/1023 ,  H01M8/1072

Abstract: Polymers with piperidinium-functionalized groups are provided. The hydroxide (anion) exchange membranes or hydroxide (anion) exchange ionomers formed from these polymers exhibit superior chemical stability, hydroxide conductivity, decreased water uptake, good solubility in selected solvents, and improved mechanical properties upon tuning the polymer structure the combination and ratios of various aromatic and ketone units.

公开(公告)号：US20240131477A1

公开(公告)日：2024-04-25

申请号：US18276019

申请日：2022-02-04

Applicant: University of Delaware ,  Versogen, Inc.

Inventor： Yushan Yan ,  Keda Hu ,  Lan Wang ,  Brian Setzler ,  Wenjuan Shi ,  Junhua Wang

IPC: B01D71/60 ,  B01D61/48 ,  C08G73/02

CPC classification number: B01D71/60 ,  B01D61/48 ,  C08G73/0273

Abstract: Hydroxide-exchange membranes (HEMs) and hydroxide-exchange ionomers (HEIs) are provided which include polymers with oxidation resistant groups. The attachment of the oxidation resistant groups to the polymer backbone allows fine-tuning of the mechanical properties of the membrane and incorporation of alkaline stable cations, such as imidazoliums, phosphoniums and ammoniums, and provides enhanced stability to the polymer. HEMs/HEIs formed from these polymers exhibit superior chemical stability, anion conductivity, decreased water uptake, good solubility in selected solvents, and improved mechanical properties in an ambient dry state as compared to conventional HEM/HEIs. The HEMs exhibit enhanced stability in a highly oxidative environment.

公开(公告)号：US20240278227A1

公开(公告)日：2024-08-22

申请号：US18435852

申请日：2024-02-07

Applicant: University of Delaware ,  Versogen, Inc.

Inventor： Yushan Yan ,  Junhua Wang ,  Hui Duan ,  Keda Hu ,  Lan Wang ,  Wenjuan Shi

IPC: B01J41/14 ,  H01M8/1004 ,  H01M8/103 ,  H01M8/1081 ,  H01M8/1086

CPC classification number: B01J41/14 ,  H01M8/1004 ,  H01M8/103 ,  H01M8/1081 ,  H01M8/109

Abstract: Alkaline-stable cations were introduced to a polyolefin bearing phenyl side chains to enable manipulation of ion exchange capacity and hot pressing technique. Hydroxide exchange membranes or hydroxide exchange ionomers formed from these polymers exhibit superior chemical stability, hydroxide conductivity, decreased water uptake, good solubility in selected solvents, and improved device stability as compared to conventional hydroxide exchange membranes or ionomers. Hydroxide exchange membrane fuel cells and hydroxide exchange membrane electrolyzers comprising the polyolefin with pendant cation provide enhanced performance and durability at relatively high temperatures.

公开(公告)号：US20240246070A1

公开(公告)日：2024-07-25

申请号：US18389737

申请日：2023-12-19

Applicant: Versogen, Inc.

Inventor： Junhua Wang ,  Keda Hu ,  Lan Wang ,  Yushan Yan

IPC: B01J41/13 ,  C08G73/06 ,  H01M4/88 ,  H01M4/94

CPC classification number: B01J41/13 ,  C08G73/0627 ,  H01M4/881 ,  H01M4/94

Abstract: Poly(aryl alkylene) polymers with pendant piperidinium-functionalized groups are provided which have an alkaline-stable cation, such as imidazolium, introduced into a rigid aromatic polymer backbone free of ether bonds. Hydroxide exchange membranes or hydroxide exchange ionomers formed from these polymers exhibit superior chemical stability, hydroxide conductivity, decreased water uptake, good solubility in selected solvents, and improved mechanical properties in an ambient dry state as compared to conventional hydroxide exchange membranes or ionomers. Hydroxide exchange membrane fuel cells and hydroxide exchange membrane electrolyzers comprising the poly(aryl alkylene) polymers with pendant piperidinium-functionalized groups exhibit enhanced performance and durability at relatively high temperatures.