EP0312330A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Anode coating for lithium cell
Assignee: Greatbatch Ltd
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Filing: 1988-10-12
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Granted: —
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Expires: 2008-10-12
Abstract
Abstract An alkali metal/halogen or oxyhalide electrochemical cell wherein an alkali metal anode (30), preferably lithium, has a surface in operative contact with a halogen-containing or oxyhalide cathode/electrolyte (68) including a solvent if necessary, has a coating (70, 72) on the anode surface comprising a thin film or substrate material impregnated with organic material, for example organic electron donor material, or other suitable coating material. The substrate material is flexible, preferably a synthetic open mesh fabric material, and the film is prepared by contacting the substrate material with a solution of the organic material and solvent followed by drying. The resulting film is flexible and is applied to the operative surface of the anode thereby coating the same, preferably adhered to the surface by pressing. The flexible film can be applied equally well to anode surfaces which are either smooth and flat or irregular.
Inventors
- 👤 Frank W. Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 13:02
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M6/182; H01M4/00; H01M4/02; H01M4/06; H01M4/08; H01M4/12; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/49115
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
48 words
In an alkali metal electrochemical primary cell for delivering output voltage wherein an alkali metal anode has a surface in operative contact with a solid electrolyte, the improvement comprising: a coating on said anode surface comprising a thin film of substrate material impregnated with organic electron donor material.
Claim 2
Dependent Claim
48 words
In an alkali metal electrochemical primary cell for delivering output voltage wherein an alkali metal anode has a surface in operative contact with a solid electrolyte, the improvement comprising: a coating on said anode surface comprising a thin film of substrate material impregnated with organic electron donor material.
Claim 3
Dependent Claim
13 words
An electrochemical cell according to claim 1, wherein said anode is of lithium.
Claim 4
Dependent Claim
14 words
An electrochemical cell according to claim 1, wherein said substrate is of flexible material.
Claim 5
Dependent Claim
16 words
An electrochemical cell according to claim 1, wherein said substrate is of synthetic open-mesh fabric material.
Claim 6
Dependent Claim
16 words
An electrochemical cell according to claim 1, wherein said film is pressure-bonded to said anode surface.
Claim 7
Dependent Claim
22 words
An electrochemical cell according to claim 1, wherein said anode surface is relatively flat and said coating is adhered to said surface.
Claim 8
Dependent Claim
29 words
An electrochemical cell according to claim 1, wherein said anode surface is provided with formations to increase the surface area thereof and said coating is adhered to said surface.
Claim 9
Dependent Claim
25 words
An electrochemical cell according to claim 1, further including a cathode comprising a charge transfer complex formed from a halogen and organic electron donor material.
Claim 10
Dependent Claim
21 words
An electrochemical cell according to claim 1, further including a cathode comprising a charge transfer complex formed from iodine and polyvinylpyridine.
Claim 11
Dependent Claim
29 words
An electrochemical cell according to claim 1, wherein said alkali metal anode has a surface in operative contact with a liquid cathode/electrolyte to form an alkali metal-oxyhalide electrochemical cell.
Claim 12
Dependent Claim
18 words
An electrochemical cell according to claim 1, wherein said coating is in the form of a unitary body.
Claim 13
Dependent Claim
65 words
An anode for an alkali metal electrochemical primary cell for delivering output voltage comprising: a) an anode body of alkali metal having a surface for operative contact with an electrolyte of the cell; b) anode electrical conductor means operatively associated with said anode body; and c) a coating on said anode surface comprising a thin film of substrate material impregnated with organic electron donor material.
Claim 14
Dependent Claim
65 words
An anode for an alkali metal electrochemical primary cell for delivering output voltage comprising: a) an anode body of alkali metal having a surface for operative contact with an electrolyte of the cell; b) anode electrical conductor means operatively associated with said anode body; and c) a coating on said anode surface comprising a thin film of substrate material impregnated with organic electron donor material.
Claim 15
Dependent Claim
12 words
An anode according to claim 12, wherein said body is of lithium.
Claim 16
Dependent Claim
12 words
An anode according to claim 12, wherein said substrate material is flexible.
Claim 17
Dependent Claim
16 words
An anode according to claim 12, wherein said substrate is of synthetic open mesh fabric material.
Claim 18
Dependent Claim
15 words
An anode according to claim 12, wherein said film is pressure-bonded to said anode surface.
Claim 19
Dependent Claim
21 words
An anode according to claim 12, wherein said anode surface is relatively flat and said coating is adhered to said surface.
Claim 20
Dependent Claim
28 words
An anode according to claim 12, wherein said anode surface is provided with formations to increase the surface area thereof and said coating is adhered to said surface.
Claim 21
Dependent Claim
17 words
A anode according to claim 12, wherein said coating is in the form of a unitary body.
Claim 22
Independent Claim
49 words
A method of coating the operative surface of an anode for an electrochemical cell containing an alkali metal anode comprising the steps of: a) providing a thin film of substrate material; b) impregnating said film with organic material; and c) applying the impregnated film to said anode operative surface.
Claim 23
Independent Claim
49 words
A method of coating the operative surface of an anode for an electrochemical cell containing an alkali metal anode comprising the steps of: a) providing a thin film of substrate material; b) impregnating said film with organic material; and c) applying the impregnated film to said anode operative surface.
Claim 24
Dependent Claim
12 words
A method according to claim 20, wherein said anode is of lithium.
Claim 25
Dependent Claim
12 words
A method according to claim 20, wherein said substrate material is flexible.
Claim 26
Dependent Claim
15 words
A method according to claim 20, wherein said substrate material is synthetic open mesh fabric.
Claim 27
Dependent Claim
39 words
A method according to claim 20, wherein said step of impregnating said film with organic material comprises dipping said film into a solution of said organic material and solvent, removing said film from said solution, and drying said film.
Claim 28
Dependent Claim
23 words
A method according to claim 20, wherein said step of applying said impregnated film to said anode operative surface is done by pressing.
Claim 29
Dependent Claim
178 words
Apparatus for forming a coating for application to the surface of the anode of an electrochemical cell containing an alkali metal anode comprising: a) first storage reel means for holding a quantity of synthetic open mesh fabric substrate material in the form of a tape wound on said reel; b) a vessel for containing a solution of organic material; c) means operatively associated with said vessel for guiding said substrate material into said vessel, through the solution contained therein and out of said vessel; d) drying means operatively associated with a path along which said substrate material moves upon leaving said vessel for drying the substrate material after being impregnated with the solution in said vessel; e) second storage reel means for receiving the dried substrate material in the form of tape wound on said reel; and f) drive means operatively connected to said second storage reel means for driving the same to advance said substrate tape from said first storage reel means through said vessel and through said drying means and onto said second storage reel means.
Claim 30
Dependent Claim
178 words
Apparatus for forming a coating for application to the surface of the anode of an electrochemical cell containing an alkali metal anode comprising: a) first storage reel means for holding a quantity of synthetic open mesh fabric substrate material in the form of a tape wound on said reel; b) a vessel for containing a solution of organic material; c) means operatively associated with said vessel for guiding said substrate material into said vessel, through the solution contained therein and out of said vessel; d) drying means operatively associated with a path along which said substrate material moves upon leaving said vessel for drying the substrate material after being impregnated with the solution in said vessel; e) second storage reel means for receiving the dried substrate material in the form of tape wound on said reel; and f) drive means operatively connected to said second storage reel means for driving the same to advance said substrate tape from said first storage reel means through said vessel and through said drying means and onto said second storage reel means.
References Cited (Backward Citations)
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