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US5728181A
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Electrodes for electrochemical cells and method of making same
Assignee: Amperex Technology Ltd
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Filing: 1996-11-04
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Granted: 1998-03-17
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Expires: 2016-11-04
Abstract
Abstract An electrochemical cell is provided with a first and second electrode assemblies (10) (11), and an electrolyte (15) disposed therebetween. The electrodes may either be of the same or different materials and may be fabricated from ruthenium, iridium, cobalt, tungsten, vanadium, iron, molybdenum, nickel, silver, zinc, and combinations thereof. The electrode assemblies are fabricated by depositing a layer (16) of a conductive ink adhesive on a surface of a current collecting substrate (12). Thereafter, a layer of powdered active material (18) is impregnated onto the surface of the conductive ink layer.
Inventors
- 👤 Richard H. Jung
- 👤 Ke Keryn Lian
- 👤 Changming Li
- 👤 Han Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:03
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/04; H01G9/042; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/66; H01M4/665; H01M4/667; H01M4/661; H01M4/668; H01M4/669; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/49115
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
57 words
An electrode for an electrochemical energy storage device comprising: a current collecting substrate; a layer of a conductive ink disposed on at least one major surface of said current collecting substrate, said conductive ink including a transference medium and a conducting medium; and a layer of powdered electrode active material impregnated into the layer of conductive ink.
Claim 2
Dependent Claim
57 words
An electrode for an electrochemical energy storage device comprising: a current collecting substrate; a layer of a conductive ink disposed on at least one major surface of said current collecting substrate, said conductive ink including a transference medium and a conducting medium; and a layer of powdered electrode active material impregnated into the layer of conductive ink.
Claim 3
Dependent Claim
32 words
An electrode as in claim 1, wherein said current collecting substrate is fabricated of a material selected from the group of copper, nickel, silver, stainless steel, tin, lead, aluminum, and combinations thereof.
Claim 4
Dependent Claim
16 words
An electrode as in claim 1, wherein said transference medium is an adhesive conductive transference medium.
Claim 5
Dependent Claim
27 words
An electrode as in claim 1, wherein said transference medium is selected from the group of materials consisting of epoxy, polythiophene acrylate, phenol-formaldehyde, polyamides, and combinations thereof.
Claim 6
Dependent Claim
27 words
An electrode as in claim 1, wherein said conducting medium is loaded in said transference medium on the order of between 1 and 50 mg/cm 2 .
Claim 7
Dependent Claim
35 words
An electrode as in claim 1, wherein said conducting medium is selected from the group of materials consisting of acetylene black, furnace black, ferrophosphide, metal carbides, metal oxides, metal sulfides, metal nitrides, and combinations thereof.
Claim 8
Dependent Claim
47 words
An electrode as in claim 1, wherein the electrode active material is selected from the group consisting of ruthenium, iridium, carbon platinum, cobalt, tungsten, vanadium, iron, nickel, molybdenum, silver, zinc, lead, manganese, alloys thereof, nitrides thereof, carbides thereof, sulfides thereof, oxides thereof, hydroxides thereof and combinations thereof.
Claim 9
Dependent Claim
21 words
An electrode as in claim 1, wherein the particle size of said powdered active material is between 1 and 100 μm.
Claim 10
Dependent Claim
25 words
An electrode as in claim 1, wherein said conductive ink layer is deposited on said substrate to a thickness of between 10 and 100 μm.
Claim 11
Dependent Claim
24 words
An electrode as in claim 1, wherein said conductive ink layer is deposited to a thickness of preferably between about 15 and 40 μm.
Claim 12
Independent Claim
57 words
A method of fabricating an electrode for an electrochemical cell, said method comprising the steps of: providing a current collecting substrate; depositing a layer of a conductive ink on said current collecting substrate, said conductive ink including a transference medium and a conducting medium; and impregnating said layer of conductive ink with a powdered electrode active material.
Claim 13
Independent Claim
57 words
A method of fabricating an electrode for an electrochemical cell, said method comprising the steps of: providing a current collecting substrate; depositing a layer of a conductive ink on said current collecting substrate, said conductive ink including a transference medium and a conducting medium; and impregnating said layer of conductive ink with a powdered electrode active material.
Claim 14
Dependent Claim
31 words
A method as in claim 10, wherein said current collecting substrate is fabricated of a material selected from the group of copper, nickel, silver, stainless steel, aluminum, lead, and combinations thereof.
Claim 15
Dependent Claim
15 words
A method as in claim 10, wherein said transference medium is an adhesive transference medium.
Claim 16
Dependent Claim
27 words
A method as in claim 10, wherein said transference medium is selected from the group of materials consisting of epoxy, polythiophene acrylate, phenol-formaldehyde, polyamides, and combinations thereof.
Claim 17
Dependent Claim
23 words
A method as in claim 10, wherein said conducting medium comprises between 1 and 50 mg/cm 2 weight percent of the conductive ink.
Claim 18
Dependent Claim
35 words
A method as in claim 10, wherein said conducting medium is selected from the group of materials consisting of acetylene black, furnace black, ferrophosphide, metal carbides, metal oxides, metal sulfides, metal nitrides, and combinations thereof.
Claim 19
Dependent Claim
46 words
A method as in claim 10, wherein the electrode active material is selected from the group consisting of ruthenium, iridium, platinum, cobalt, tungsten, vanadium, iron, nickel, molybdenum, silver, zinc, lead, manganese, alloys thereof, nitrides thereof, carbides thereof, sulfides thereof, oxides thereof, hydroxides thereof, and combinations thereof.
Claim 20
Dependent Claim
21 words
A method as in claim 10, wherein the particle size of said powdered active material is between 1 and 100 μm.
Claim 21
Dependent Claim
28 words
A method as in claim 10, wherein said conductive ink layer is deposited on said substrate to a thickness of between thickness of between 10 and 100 μm.
Claim 22
Dependent Claim
24 words
A method as in claim 10, wherein said conductive ink layer is deposited to a thickness of preferably between about 15 and 40 μm.
References Cited (Backward Citations)
US5350647A
Cited
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