公开(公告)号：US20230128376A1

公开(公告)日：2023-04-27

申请号：US17819959

申请日：2022-08-16

Applicant: UOP LLC

Inventor： Chunqing Liu ,  Chaoyi Ba ,  Nicole Karns

IPC: C08G61/12 ,  C01B3/50 ,  C10L3/10 ,  B01D53/22 ,  B01D71/62

Abstract: A high selectivity and high CO2 plasticization resistant polymer comprises a plurality of repeating units of formula (I) for gas separation applications. The polymer may be synthesized from a superacid catalyzed poly(hydroalkylation) reaction. Membranes made from the polymer and gas separation processes using the membranes made from the polymer are also described.

公开(公告)号：US11955678B2

公开(公告)日：2024-04-09

申请号：US17474200

申请日：2021-09-14

Applicant: UOP LLC

Inventor： Chunqing Liu ,  Chaoyi Ba ,  Xueliang Dong

IPC: H01M8/18 ,  H01M4/86 ,  H01M4/88

CPC classification number: H01M8/188 ,  H01M4/8657 ,  H01M4/8853 ,  H01M8/18 ,  H01M2004/8684 ,  H01M2300/0002

Abstract: Methods to improve redox flow battery performance with improved CE, reduced electrolyte solution crossover, and simplified solution refreshing process have been developed. The methods include controlling the pre-charging degree and conditions to allow high quality metal plating (ductile and uniform), for example, Fe(O), on the negative electrode. Control of the pre-charging conditions can be combined with increasing the concentration of metal ions compared to existing systems, while maintaining the same concentration in both the negative and positive electrolytes, or increasing the concentration of metal ions in the negative electrolyte so that the negative electrolyte has a higher concentration of metal ions than the positive electrolyte.

公开(公告)号：US11837767B2

公开(公告)日：2023-12-05

申请号：US17388962

申请日：2021-07-29

Applicant: UOP LLC

Inventor： Chunqing Liu ,  Xueliang Dong ,  Chaoyi Ba ,  Stuart R. Miller ,  James H. K. Yang

IPC: H01M8/18 ,  H01M8/08

CPC classification number: H01M8/188 ,  H01M8/08 ,  H01M2300/0005

Abstract: Stable and high performance positive and negative electrolytes compositions to be used in redox flow battery systems are described. The redox flow battery system, comprises: at least one rechargeable cell comprising a positive electrolyte, a negative electrolyte, and an ionically conductive membrane positioned between the positive electrolyte and the negative electrolyte, the positive electrolyte in contact with a positive electrode, and the negative electrolyte in contact with a negative electrode. The positive electrolyte consists essentially of water, a first amino acid, an inorganic acid, an iron precursor, a supporting electrolyte, and optionally a boric acid. The negative electrolyte consists essentially of water, the iron precursor, the supporting electrolyte, and a negative electrolyte additive. The iron precursor is FeCl2, FeCl3, FeSO4, Fe2(SO4)3, FeO, Fe, Fe2O3, or combinations thereof. The supporting electrolyte is LiCl, NaCl, Na2SO4, KCl, NH4Cl, or combinations thereof. The negative electrolyte additive is boric acid or a combination of the boric acid and a second amino acid.

公开(公告)号：US20230102700A1

公开(公告)日：2023-03-30

申请号：US17474198

申请日：2021-09-14

Applicant: UOP LLC

Inventor： Chaoyi Ba ,  Chunqing Liu ,  Xueliang Dong

IPC: B01J41/13 ,  H01M8/103 ,  H01M8/1004 ,  C25B13/08 ,  C25B1/04 ,  C25B11/032 ,  C08G73/06 ,  C08J5/22

Abstract: Anion exchange polymers having high OH− conductivity, chemical stability, and mechanical stability have been developed for use in AEMs. The anion exchange polymers have stable hydrophobic polymer backbones, stable hydrophilic quaternary ammonium cationic groups, and hydrophilic phenolic hydroxyl groups on the polymer side chains. The polymers have polymer backbones free of ether bonds, hydrophilic polymer side chains, and piperidinium ion-conducting functionality, which enables efficient and stable operation in water or CO2 electrolysis, redox flow battery, and fuel cell applications. The polymer comprises a plurality of repeating units of formula (I) Anion exchange membranes and membrane electrode assemblies incorporating the anion exchange polymers are also described.

公开(公告)号：US11749811B2

公开(公告)日：2023-09-05

申请号：US17388950

申请日：2021-07-29

Applicant: UOP LLC

Inventor： Chunqing Liu ,  Xueliang Dong ,  Chaoyi Ba ,  Stuart R. Miller

IPC: H01M8/02 ,  H01M8/18

CPC classification number: H01M8/02 ,  H01M8/188

Abstract: An ionically conductive asymmetric composite membrane for use in redox flow battery, fuel cell, electrolysis applications and the like is described. It comprises a microporous substrate membrane and an asymmetric hydrophilic ionomeric polymer coating layer on the surface of the microporous substrate layer. The coating layer is made of a hydrophilic ionomeric polymer. The asymmetric hydrophilic ionomeric polymer coating layer comprises a porous layer having a first surface and a second surface, the first surface of the porous layer on the surface of the microporous substrate layer and a nonporous layer on the second surface of the porous support layer. The microporous substrate membrane is made from a different polymer from the hydrophilic ionomeric polymer.

公开(公告)号：US20230085103A1

公开(公告)日：2023-03-16

申请号：US17474200

申请日：2021-09-14

Applicant: UOP LLC

Inventor： Chunqing Liu ,  Chaoyi Ba ,  Xueliang Dong

IPC: H01M8/18 ,  H01M8/04276 ,  H01M4/90 ,  H01M4/86 ,  H01M4/88

Abstract: Methods to improve redox flow battery performance with improved CE, reduced electrolyte solution crossover, and simplified solution refreshing process have been developed. The methods include controlling the pre-charging degree and conditions to allow high quality metal plating (ductile and uniform), for example, Fe(0), on the negative electrode. Control of the pre-charging conditions can be combined with increasing the concentration of metal ions compared to existing systems, while maintaining the same concentration in both the negative and positive electrolytes, or increasing the concentration of metal ions in the negative electrolyte so that the negative electrolyte has a higher concentration of metal ions than the positive electrolyte.

公开(公告)号：US20220200030A1

公开(公告)日：2022-06-23

申请号：US17388962

申请日：2021-07-29

Applicant: UOP LLC

Inventor： Chunqing Liu ,  Xueliang Dong ,  Chaoyi Ba ,  Stuart R. Miller ,  James H.K. Yang

IPC: H01M8/08 ,  H01M8/18

Abstract: Stable and high performance positive and negative electrolytes compositions to be used in redox flow battery systems are described. The redox flow battery system, comprises: at least one rechargeable cell comprising a positive electrolyte, a negative electrolyte, and an ionically conductive membrane positioned between the positive electrolyte and the negative electrolyte, the positive electrolyte in contact with a positive electrode, and the negative electrolyte in contact with a negative electrode. The positive electrolyte consists essentially of water, a first amino acid, an inorganic acid, an iron precursor, a supporting electrolyte, and optionally a boric acid. The negative electrolyte consists essentially of water, the iron precursor, the supporting electrolyte, and a negative electrolyte additive. The iron precursor is FeCl2, FeCl3, FeSO4, Fe2(SO4)3, FeO, Fe, Fe2O3, or combinations thereof. The supporting electrolyte is LiCl, NaCl, Na2SO4, KCl, NH4Cl, or combinations thereof. The negative electrolyte additive is boric acid or a combination of the boric acid and a second amino acid.

公开(公告)号：US20220192187A1

公开(公告)日：2022-06-23

申请号：US17449471

申请日：2021-09-30

Applicant: UOP LLC

Inventor： Chunqing Liu ,  Chaoyi Ba ,  Xueliang Dong ,  Robert L. Bedard

IPC: A01N25/10 ,  A01N59/20 ,  A01N59/16 ,  B01J20/26 ,  B01J20/24 ,  B01J20/02 ,  B01J20/28 ,  B01J20/32 ,  A61L9/014 ,  B01D39/16

Abstract: A composite virucidal filter media is described. The filter media comprises a fibrous substrate comprising a plurality of intermingled fibers, a low cost, nontoxic, hydrophilic polymer without acidic functional groups deposited on a surface of the fibers without the formation of a continuous coating layer on the substrate, and a virucidal metal, a virucidal metal-containing compound, or combinations thereof deposited on the surface of the fibers comprising the hydrophilic polymer without acidic functional groups. The hydrophilic polymer without acidic functional groups can be charged or non-charged. Methods of making virucidal fibrous filter media are also described.

公开(公告)号：US11980879B2

公开(公告)日：2024-05-14

申请号：US17474198

申请日：2021-09-14

Applicant: UOP LLC

Inventor： Chaoyi Ba ,  Chunqing Liu ,  Xueliang Dong

IPC: H01M8/04 ,  B01J41/13 ,  C08G73/06 ,  C08J5/22 ,  C25B1/04 ,  C25B11/032 ,  C25B13/08 ,  H01M8/1004 ,  H01M8/103

CPC classification number: B01J41/13 ,  C08G73/0627 ,  C08J5/2231 ,  C25B1/04 ,  C25B11/032 ,  C25B13/08 ,  H01M8/1004 ,  H01M8/103 ,  C08J2379/02

Abstract: Anion exchange polymers having high OH− conductivity, chemical stability, and mechanical stability have been developed for use in AEMs. The anion exchange polymers have stable hydrophobic polymer backbones, stable hydrophilic quaternary ammonium cationic groups, and hydrophilic phenolic hydroxyl groups on the polymer side chains. The polymers have polymer backbones free of ether bonds, hydrophilic polymer side chains, and piperidinium ion-conducting functionality, which enables efficient and stable operation in water or CO2 electrolysis, redox flow battery, and fuel cell applications. The polymer comprises a plurality of repeating units of formula (I)




Anion exchange membranes and membrane electrode assemblies incorporating the anion exchange polymers are also described.

公开(公告)号：US11970589B2

公开(公告)日：2024-04-30

申请号：US17162421

申请日：2021-01-29

Applicant: UOP LLC

Inventor： Chunqing Liu ,  Xueliang Dong ,  Chaoyi Ba

IPC: C08J5/22 ,  C08K3/36 ,  H01M8/1069

CPC classification number: C08J5/2225 ,  C08K3/36 ,  H01M8/1069 ,  C08J2205/042 ,  C08J2205/044

Abstract: A composite proton conductive membrane, comprising an inorganic filler having covalently bonded acidic functional groups and a high surface area of at least 150 m2/g; and a water insoluble ionically conductive polymer. This membrane provides advantages over traditional polymeric proton conductive membranes for redox flow battery, fuel cell, and electrolysis applications include: 1) enhanced proton conductivity/permeance due to the formation of additional nanochannels for proton conducting; 2) improved proton/electrolyte selectivity for redox flow battery application; 3) reduced membrane swelling and gas or electrolyte crossover; 4) improved chemical stability; 5) increased cell operation time with stable performance, and 6) reduced membrane cost.