EP0145231A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electrode article
Assignee: Scimat Ltd
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Filing: 1984-11-01
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Granted: —
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Expires: 2004-11-01
Abstract
Abstract Electrodes for electrochemicaf cells, are protected by polymer material which is swellable in the liquids to be encountered in the cell in use. The electrode material can be rolled out to provide advantageously thin sheets while so protected.
Inventors
- 👤 George Barry Park
- 👤 Robert Hamilton Mcloughlin
- 👤 John Anthony Cook
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 07:11
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/13; H01M4/06; H01M4/36; H01M4/38; H01M4/381; H01M4/382; H01M6/00; H01M6/04; H01M6/06; H01M6/10; H01M6/14; H01M2004/026; H01M2004/027; H01M2300/00; H01M2300/0017; H01M2300/0025; H01M50/00; H01M50/40; H01M50/46; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/49112; Y10T29/49114
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
69 words
An article comprising continuous metal electrode material protected by a flexible layer of protective material which layer is adhered to the surface of the electrode material is ready to function as an electrode separator when the article is used to provide an electrode in an electrical device, at least part of the protective material being swellable by liquid with which it will come into contact in the said device.
Claim 2
Dependent Claim
69 words
An article comprising continuous metal electrode material protected by a flexible layer of protective material which layer is adhered to the surface of the electrode material is ready to function as an electrode separator when the article is used to provide an electrode in an electrical device, at least part of the protective material being swellable by liquid with which it will come into contact in the said device.
Claim 3
Dependent Claim
27 words
An article according to claim 1, wherein the electrode material has been deformed so as to increase its surface area while in contact with the protective material.
Claim 4
Dependent Claim
80 words
An article comprising sensitive electrode material protected by a flexible layer of protective material which layer is ready to function as an electrode separator when the article is used to provide an electrode in an electrical device, at least part of the protective material being swellable by liquid with which it will come into contact in the said device, and the electrode material having been deformed so as to increase its surface area while in contact with the protective material.
Claim 5
Dependent Claim
80 words
An article comprising sensitive electrode material protected by a flexible layer of protective material which layer is ready to function as an electrode separator when the article is used to provide an electrode in an electrical device, at least part of the protective material being swellable by liquid with which it will come into contact in the said device, and the electrode material having been deformed so as to increase its surface area while in contact with the protective material.
Claim 6
Dependent Claim
19 words
An article according to claim 3 wherein the protective material is adhered to the surface of the electrode material.
Claim 7
Dependent Claim
20 words
An article according to claim 3, wherein the protective material is associated with, but not adhered to, the electrode material.
Claim 8
Dependent Claim
24 words
An article according to any of the preceding claims, in a form suitable for feeding to automatic equipment capable of assembling such a device.
Claim 9
Dependent Claim
24 words
An article according to claim 6, in the form of an elongate strip of sufficient length to make a plurality of the said devices.
Claim 10
Dependent Claim
17 words
An article according to any of the preceding claims, wherein the protective material comprises cross-linked organic material.
Claim 11
Dependent Claim
36 words
An article according to any of the preceding claims, incorporating at least one additional material capable of functioning as another component of the said electrical device in addition to the electrode material and the protective material.
Claim 12
Dependent Claim
25 words
An article according to claim 9, wherein the additional material is capable of functioning as a current collector when the article is used as aforesaid.
Claim 13
Dependent Claim
17 words
An article according to any of the preceding claims, wherein the electrode material is a reactive metal.
Claim 14
Dependent Claim
19 words
An article according to claim 11, wherein the reactive metal is an alkali metal or an alkaline earth metal.
Claim 15
Dependent Claim
12 words
An article according to claim 12, wherein the reactive metal is lithium.
Claim 16
Dependent Claim
29 words
An article according to any of the preceding claims, wherein the electrode material has been deformed so as to decrease its thickness while in contact with the protective material.
Claim 17
Dependent Claim
24 words
An article according to any of the preceding claims, wherein the electrode material is less than 0.25 millimetres, preferably less than 0.125 millimetres thick.
Claim 18
Dependent Claim
33 words
An article according to any of the preceding claims, wherein the protective material has been deformed while in contact with the electrode material so as to enhance its function as an electrode separator.
Claim 19
Dependent Claim
17 words
An electrode for an electrical device formed from an article according to any of the preceding claims.
Claim 20
Dependent Claim
10 words
An electrical device incorporating an electrode according to claim 17.
Claim 21
Dependent Claim
18 words
An electrical device according to claim 18 incorporating an electrolyte liquid which permeates the layer of protective material.
Claim 22
Independent Claim
37 words
A method of preparing an article according to any of claims 1 to 16, comprising assembling together a body of the electrode material and a layer of the protective material prior to assembly in an electrical device.
Claim 23
Dependent Claim
27 words
A method according to claim 20, wherein the protective material is applied so as to adhere to at least part of the surface of the electrode material.
Claim 24
Dependent Claim
20 words
A method according to claim 21, wherein the protective material is melt extruded onto the surface of the electrode material.
Claim 25
Dependent Claim
17 words
A method according to claim 21, wherein the protective material is pressure laminated onto the electrode material.
Claim 26
Independent Claim
32 words
A method according to any of claims 20 to 23 including the step of deforming the electrode material so as to increase is surface area while in contact with the protective material.
Claim 27
Independent Claim
35 words
A method according to any of claims 20 to 24 including the step of deforming the protective material while in contact with the electrode material so as to enhance its function as an electrode separator.
Claim 28
Independent Claim
18 words
A method according to any of claims 20 to 25, including the step of cross-linking the protective material.
Claim 29
Independent Claim
62 words
A method of making an electrical device comprising providing an article according to any of claims 1 to 16, and incorporating at least part of the article in the device so that the electrode material of the article will be capable of functioning as an electrode and the protective material of the article will be capable of functioning as an electrode separator.
Claim 30
Dependent Claim
24 words
A method according to claim 27, including the preparation of the said article by a method accordinq to any of claims 20 to 26.
Claim 31
Dependent Claim
31 words
A method according to claim 27 or 28 wherein the article includes a further removable layer overlying the prtoective material and the method includes the step of removing the removable layer.
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