US20030198858A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enzymatic fuel cell with membrane bound redox enzyme
Assignee: PowerZyme Inc
•
Filing: 2002-04-15
•
Granted: —
•
Expires: 2022-04-15
Abstract
Abstract Still further provided is a fuel cell with an anode compartment and a cathode compartment comprising: in the anode compartment, an anode electrode and, integrated into biocompatible membrane tethered to the anode electrode, a redox enzyme that can receive electrons from an electron carrier; in the cathode compartment, a cathode electrode which, when a conductive pathway to the first electrode is formed, is effective to convey the electrons to an electron acceptor composition in the cathode compartment; and a barrier separating the anode compartment from the cathode compartment but effective to convey protons from the anode compartment to the cathode compartment.
Inventors
- 👤 Hoi-Cheong Sun
- 👤 Richard Whipple
- 👤 Steven Lipp
- 👤 Susan Klatskin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:07
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/9008; B; B82; B82Y; B82Y30/00; B82Y5/00; H01M8/00; H01M8/04; H01M8/04082; H01M8/04089; H01M8/06; H01M8/0662; H01M8/10; H01M8/1009; H01M8/1011; H01M8/1016; H01M8/1018; H01M8/102; H01M8/103; H01M8/1041; H01M8/1044; H01M8/1046; H01M8/1051; H01M8/1058; H01M8/106; H01M8/1069; H01M8/1072; H01M8/16; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
99 words
1 . A fuel cell with an anode compartment and a cathode compartment comprising: in the anode compartment, an anode electrode and, integrated into biocompatible membrane tethered to the anode electrode, a redox enzyme that can receive electrons from an electron carrier; in the cathode compartment, a cathode electrode which, when a conductive pathway to the first electrode is formed, is effective to convey the electrons to an electron acceptor composition in the cathode compartment; and a barrier separating the anode compartment from the cathode compartment but effective to convey protons from the anode compartment to the cathode compartment.
Claim 2
Dependent Claim
99 words
1 . A fuel cell with an anode compartment and a cathode compartment comprising: in the anode compartment, an anode electrode and, integrated into biocompatible membrane tethered to the anode electrode, a redox enzyme that can receive electrons from an electron carrier; in the cathode compartment, a cathode electrode which, when a conductive pathway to the first electrode is formed, is effective to convey the electrons to an electron acceptor composition in the cathode compartment; and a barrier separating the anode compartment from the cathode compartment but effective to convey protons from the anode compartment to the cathode compartment.
Claim 3
Dependent Claim
32 words
2 . The fuel cell of claim 1 , further comprising: in the anode compartment, one or more dehydrogenase enzymes effective to transfer electrons from a C1 compound to an electron carrier.
Claim 4
Dependent Claim
21 words
3 . The fuel cell of claim 2 , wherein the C 1 compound is methanol or an oxidative product thereof.
Claim 5
Dependent Claim
22 words
4 . The fuel cell of claim 2 , wherein the barrier comprises proton pumping polypeptide which can be a redox enzyme.
Claim 6
Dependent Claim
26 words
5 . The fuel cell of claim 2 , wherein the cathode electrode is effective to convey the electrons to hydrogen peroxide in the cathode compartment.
Claim 7
Dependent Claim
28 words
6 . The fuel cell of claim 2 , wherein the barrier incorporates a proton transporting moiety for transporting protons from the anode compartment to the cathode compartment.
Claim 8
Dependent Claim
43 words
7 . The fuel cell of claim 1 , wherein said tethered biocompatible membranes are across perforations in a substrate forming a part of the barrier, and the biocompatible membranes across the perforations comprises proton pumping polypeptide which can be the redox enzyme.
Claim 9
Dependent Claim
22 words
8 . The fuel cell of claim 7 , wherein the width of the perforations is from 10 micrometer to 1,000 micrometer.
Claim 10
Dependent Claim
21 words
9 . The fuel cell of claim 7 , wherein the width of the perforations is from 20 to 200 micrometer.
Claim 11
Dependent Claim
21 words
10 . The fuel cell of claim 7 , wherein the width of the perforations is from 60 to 140 micrometer
Claim 12
Dependent Claim
110 words
11 . A fuel cell with an anode compartment and a cathode compartment comprising: in the anode compartment, an anode electrode and, associated with or adjacent to the anode electrode, a redox enzyme incorporated into a synthetic membrane comprising a block copolymer, wherein the redox enzyme can receive electrons from an electron carrier; in the cathode compartment, a cathode electrode which, when a conductive pathway to the first electrode is formed, is effective to convey the electrons to an electron acceptor composition in the cathode compartment; and a barrier separating the anode compartment from the cathode compartment but effective to convey protons from the anode compartment to the cathode compartment.
Claim 13
Dependent Claim
110 words
11 . A fuel cell with an anode compartment and a cathode compartment comprising: in the anode compartment, an anode electrode and, associated with or adjacent to the anode electrode, a redox enzyme incorporated into a synthetic membrane comprising a block copolymer, wherein the redox enzyme can receive electrons from an electron carrier; in the cathode compartment, a cathode electrode which, when a conductive pathway to the first electrode is formed, is effective to convey the electrons to an electron acceptor composition in the cathode compartment; and a barrier separating the anode compartment from the cathode compartment but effective to convey protons from the anode compartment to the cathode compartment.
Claim 14
Dependent Claim
32 words
12 . The fuel cell of claim 11 , further comprising: in the anode compartment, one or more dehydrogenase enzymes effective to transfer electrons from a C1 compound to an electron carrier.
Claim 15
Dependent Claim
21 words
13 . The fuel cell of claim 12 , wherein the C 1 compound is methanol or an oxidative product thereof.
Claim 16
Dependent Claim
22 words
14 . The fuel cell of claim 12 , wherein the barrier comprises proton pumping polypeptide which can be the redox enzyme.
Claim 17
Dependent Claim
26 words
15 . The fuel cell of claim 12 , wherein the cathode electrode is effective to convey the electrons to hydrogen peroxide in the cathode compartment.
Claim 18
Dependent Claim
28 words
16 . The fuel cell of claim 12 , wherein the barrier incorporates a proton transporting moiety for transporting protons from the anode compartment to the cathode compartment.
Claim 19
Dependent Claim
42 words
17 . The fuel cell of claim 11 , wherein said synthetic membranes are across perforations in a substrate forming a part of the barrier, and the synthetic membranes across the perforations comprises proton pumping polypeptide which can be the redox enzyme.
Claim 20
Dependent Claim
22 words
18 . The fuel cell of claim 17 , wherein the width of the perforations is from 10 micrometer to 1,000 micrometer.
Claim 21
Dependent Claim
21 words
19 . The fuel cell of claim 17 , wherein the width of the perforations is from 20 to 200 micrometer.
Claim 22
Dependent Claim
21 words
20 . The fuel cell of claim 17 , wherein the width of the perforations is from 60 to 140 micrometer.
Claim 23
Dependent Claim
35 words
21 . The fuel cell of claim 11 , wherein said synthetic membranes are across perforations in a substrate forming a part of the barrier, which substrate is formed of polyimide polymer or perfluorinated polymer.
References Cited (Backward Citations)
US6294281B1
Cited
US6500571B2
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.