US4675258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protected electrode article
Assignee: Scimat Ltd
•
Filing: 1986-10-30
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Granted: 1987-06-23
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Expires: 2006-10-30
Abstract
Abstract A protected electrode article comprising sensitive electrode material having a layer of protective material bonded to at least part of its surface by means of an adhesive which can be made to swell by treatment with liquid, so as to increase the permeability of the adhesive to electrolyte which is encountered by the protected electrode material when incorporated in an electrochemical device.
Inventors
- 👤 Robert H. McLoughlin
- 👤 John A. Cook
- 👤 George B. Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:05
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M4/00; H01M4/02; H01M4/13; H01M4/36; H01M4/38; H01M4/381; H01M4/64; H01M4/70; H01M4/80; H01M4/806; H01M50/00; H01M50/40; H01M50/46; H01M50/489; H01M2004/026; H01M2004/027; H01M2300/00; H01M2300/0017; H01M2300/0025; H01M4/72; H01M4/74; H01M50/461; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/49114; Y10T29/49115
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
62 words
A protected electrode article comprising sensitive electrode material having a layer of protective material bonded to at least part of its surface by means of an adhesive which can be made to swell by treatment with liquid, so as to increase the permeability of the adhesive to electrolyte which is encountered by the protected electrode material when incorporated in an electrochemical device.
Claim 2
Dependent Claim
62 words
A protected electrode article comprising sensitive electrode material having a layer of protective material bonded to at least part of its surface by means of an adhesive which can be made to swell by treatment with liquid, so as to increase the permeability of the adhesive to electrolyte which is encountered by the protected electrode material when incorporated in an electrochemical device.
Claim 3
Dependent Claim
23 words
A protected electrode article as claimed in claim 1, in which the adhesive can be made to swell by treatment with the electrolyte.
Claim 4
Dependent Claim
17 words
A protected electrode article as claimed in claim 1, in which the adhesive comprises cross-linked polymeric material.
Claim 5
Dependent Claim
32 words
A protected electrode article as claimed in claim 1, in which the layer of protective material is permeable to the electrolyte, prior to incorporation of the protected electrode material in a device.
Claim 6
Dependent Claim
52 words
A protected electrode article as claimed in claim 1, in which the layer of protective material is bonded to a part of the surface of the sensitive electrode material by means of a barrier adhesive which remains impermeable to the electrolyte during use of the protected electrode material in an electrochemical device.
Claim 7
Dependent Claim
28 words
A protected electrode article as claimed in claim 1, in which the sensitive electrode material comprises an element of Group IA or Group IIA of the periodic table.
Claim 8
Dependent Claim
18 words
A protected electrode article as claimed in claim 6, in which the sensitive electrode material comprises lithium metal.
Claim 9
Dependent Claim
13 words
An electrochemical device comprising a protected electrode article as claimed in claim 1.
Claim 10
Independent Claim
63 words
A method of forming a protected electrode article comprising: (a) bonding a layer of protective material to sensitive electrode material by means of an adhesive; and (b) treating the adhesive with a liquid to cause it to swell so as to increase the permeability of the adhesive to electrolyte which is encountered by the protected electrode material when incorporated in an electrochemical device.
Claim 11
Independent Claim
63 words
A method of forming a protected electrode article comprising: (a) bonding a layer of protective material to sensitive electrode material by means of an adhesive; and (b) treating the adhesive with a liquid to cause it to swell so as to increase the permeability of the adhesive to electrolyte which is encountered by the protected electrode material when incorporated in an electrochemical device.
Claim 12
Dependent Claim
32 words
A method as claimed in claim 9, in which the adhesive comprises polymeric material, and the method includes the step of cross-linking the material of the adhesive before carrying out step (b).
Claim 13
Dependent Claim
31 words
A method as claimed in claim 9, in which the liquid with which the adhesive is treated is the electrolyte encountered by the protected electrode material when incorporated in the device.
Claim 14
Dependent Claim
27 words
A method as claimed in any one of claim 9, which includes the step of deforming the protected electrode article so as to increase its surface area.
Claim 15
Dependent Claim
45 words
A protected electrode article comprising sensitive electrode material having a layer of protective material bonded to at least part of its surface by means of a barrier adhesive which remains impermeable to the electrolyte during use of the protected electrode material in an electrochemical device.
Claim 16
Dependent Claim
45 words
A protected electrode article comprising sensitive electrode material having a layer of protective material bonded to at least part of its surface by means of a barrier adhesive which remains impermeable to the electrolyte during use of the protected electrode material in an electrochemical device.
References Cited (Backward Citations)
CA664290A
Cited
US776480A
Cited
US779553A
Cited
GB1141568A
Cited
US3518124A
Cited
US3993501A
Cited
US4076901A
Cited
US4407913A
Cited
US4440836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |