US4182798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preformed polymer sheet in combination with the anode of electrochemical cells
Assignee: Medtronic Inc
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Filing: 1978-03-13
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Granted: 1980-01-08
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Expires: 1998-03-13
Abstract
Abstract An electrochemical cell, as initially assembled, wherein the metallic anode is contacted at least on its operative surface by a preformed self-supporting sheet of poly-2-vinylpyridine.
Inventors
- 👤 Paul M. Skarstad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:35
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M6/182; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
47 words
An electrochemical cell comprising: an anode; a cathode; and a preformed body comprising P2VP in self-supporting form interposed between the anode and cathode, the body contacting the cathode and also contacting the anode at least initially upon assembly of the cell and prior to any electrolyte-forming discharge.
Claim 2
Dependent Claim
47 words
An electrochemical cell comprising: an anode; a cathode; and a preformed body comprising P2VP in self-supporting form interposed between the anode and cathode, the body contacting the cathode and also contacting the anode at least initially upon assembly of the cell and prior to any electrolyte-forming discharge.
Claim 3
Dependent Claim
21 words
The cell according to claim 1 including an electrolyte between the body and the anode following a period of cell discharge.
Claim 4
Dependent Claim
22 words
The cell according to claim 1 wherein the cathode includes a charge-transfer complex of an organic donor component and an acceptor component.
Claim 5
Dependent Claim
25 words
The cell according to claim 3 wherein the anode includes an operative lithium element, and the acceptor component of the charge-transfer complex is a halogen.
Claim 6
Dependent Claim
16 words
The cell according to claim 4 wherein the acceptor component of the charge-transfer complex is iodine.
Claim 7
Dependent Claim
29 words
The cell according to claim 1 wherein the body is in the form of a sheet and is on the order of about 0.07 to 0.17 mm in thickness.
Claim 8
Dependent Claim
17 words
The cell according to claim 1 wherein the body is affixed to the anode by an adhesive.
Claim 9
Dependent Claim
74 words
An electrochemical cell comprising: an anode having an operative surface; an adjoining preformed sheet of P2VP positioned with one side thereof against at least a substantial part of the operative surface of the anode; and a cathode, including a charge-transfer complex of an organic electron-donor component and an electron-acceptor component, positioned to the other side of the sheet whereby the charge-transfer complex material operatively associates with the anode through the sheet, at least initially.
Claim 10
Dependent Claim
74 words
An electrochemical cell comprising: an anode having an operative surface; an adjoining preformed sheet of P2VP positioned with one side thereof against at least a substantial part of the operative surface of the anode; and a cathode, including a charge-transfer complex of an organic electron-donor component and an electron-acceptor component, positioned to the other side of the sheet whereby the charge-transfer complex material operatively associates with the anode through the sheet, at least initially.
Claim 11
Dependent Claim
15 words
The cell according to claim 8 including an electrolyte between the sheet and the cathode.
Claim 12
Dependent Claim
20 words
The cell according to claim 8 wherein the cathode includes a charge-transfer complex comprising a polyvinylpyridine polymer and a halogen.
Claim 13
Dependent Claim
14 words
The cell according to claim 10 wherein the anode includes an operative lithium element.
Claim 14
Dependent Claim
16 words
The cell according to claim 11 wherein the acceptor component of the charge-transfer complex is iodine.
Claim 15
Dependent Claim
21 words
The cell according to claim 8 wherein the sheet is on the order of about 0.07 to 0.17 mm in thickness.
Claim 16
Dependent Claim
17 words
The cell according to claim 8 wherein the sheet is affixed to the anode by an adhesive.
Claim 17
Dependent Claim
23 words
The cell according to claim 14 wherein the organic donor material of the sheet is poly-2-vinylpyridine and the adhesive is the monomer 2-vinylpyridine.
Claim 18
Dependent Claim
20 words
The cell according to claim 8 wherein the organic donor component of the cathode charge-transfer complex is a polyvinylpyridine polymer.
Claim 19
Independent Claim
95 words
A method of making an electrochemical cell wherein the anode includes an operative surface area and the cathode comprises a charge-transfer complex material, comprising the steps of: providing an anode having an operative surface to be associated with a cathode in a cell; providing a cathode including a charge-transfer complex material of an organic electron-donor component and an electron-acceptor component; placing a self-supporting preformed sheet comprising P2VP against the operative surface of the anode; and assembling the anode, the sheet and the cathode in electrochemically operative relationship with the sheet between the anode and cathode.
Claim 20
Independent Claim
95 words
A method of making an electrochemical cell wherein the anode includes an operative surface area and the cathode comprises a charge-transfer complex material, comprising the steps of: providing an anode having an operative surface to be associated with a cathode in a cell; providing a cathode including a charge-transfer complex material of an organic electron-donor component and an electron-acceptor component; placing a self-supporting preformed sheet comprising P2VP against the operative surface of the anode; and assembling the anode, the sheet and the cathode in electrochemically operative relationship with the sheet between the anode and cathode.
Claim 21
Dependent Claim
12 words
The method of claim 17 wherein the anode operative surface comprises lithium.
Claim 22
Dependent Claim
17 words
The method of claim 17 wherein the donor of the cathode charge-transfer complex is a polyvinylpyridine polymer.
Claim 23
Dependent Claim
17 words
The method of claim 17 wherein the acceptor component of the cathode charge-transfer complex is a halogen.
Claim 24
Dependent Claim
10 words
The method of claim 20 wherein the halogen is iodine.
Claim 25
Independent Claim
79 words
A method of assembling an electrochemical cell wherein the anode includes an operative surface area and the cathode comprises a charge-transfer complex material, comprising the steps of: providing an anode having an operative surface area; providing a cathode comprising a charge-transfer complex material of an organic electron-donor component and an electron-acceptor component; providing a self-supporting preformed sheet comprised of P2VP; and assembling the anode and cathode in spaced relationship with the sheet therebetween and in contact with the anode.
Claim 26
Independent Claim
79 words
A method of assembling an electrochemical cell wherein the anode includes an operative surface area and the cathode comprises a charge-transfer complex material, comprising the steps of: providing an anode having an operative surface area; providing a cathode comprising a charge-transfer complex material of an organic electron-donor component and an electron-acceptor component; providing a self-supporting preformed sheet comprised of P2VP; and assembling the anode and cathode in spaced relationship with the sheet therebetween and in contact with the anode.
Claim 27
Dependent Claim
24 words
The method of claim 22 wherein: the anode operative surface comprises lithium, and the cathode charge-transfer complex comprises a polyvinylpyridine polymer and a halogen.
Claim 28
Dependent Claim
10 words
The method of claim 23 wherein the halogen is iodine.
Claim 29
Dependent Claim
16 words
The method of claim 23 wherein the donor component of the charge-transfer complex material is poly-2-vinylpyridine.
Claim 30
Dependent Claim
10 words
The method of claim 25 wherein the halogen is iodine.
Claim 31
Dependent Claim
42 words
As an article of manufacture, an electrochemical cell comprising: an anode, a cathode, and wherein, during the process of manufacture, a performed body comprising P2VP is positioned against the anode during assembly of the cell to form part of the cell structure.
Claim 32
Dependent Claim
42 words
As an article of manufacture, an electrochemical cell comprising: an anode, a cathode, and wherein, during the process of manufacture, a performed body comprising P2VP is positioned against the anode during assembly of the cell to form part of the cell structure.
Claim 33
Dependent Claim
24 words
The cell of claim 27 wherein the P2VP body is positioned against at least a substantial part of the operative surface of the anode.
Claim 34
Dependent Claim
12 words
The cell of claim 27 wherein the anode is comprised of lithium.
Claim 35
Dependent Claim
15 words
The cell of claim 27 wherein the cathode is comprised of a charge-transfer complex material.
Claim 36
Dependent Claim
12 words
The cell of claim 30 wherein the charge-transfer complex includes a halogen.
Claim 37
Dependent Claim
10 words
The cell of claim 31 wherein the halogen is iodine.
Claim 38
Dependent Claim
11 words
The cell of claim 30 wherein the charge-transfer complex includes P2VP.
Claim 39
Dependent Claim
13 words
The cell of claim 27 wherein the P2VP body is in sheet-like form.
Claim 40
Dependent Claim
16 words
The cell of claim 27 wherein the body is secured to the anode with an adhesive.
Claim 41
Dependent Claim
12 words
The cell of claim 27 wherein the cathode comprises a polyvinlypyridine polymer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-07 | 1983-07-09 | 1984-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-07 | 1987-07-09 | 1988-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-07 | 1991-07-09 | 1992-01-08 | $7700.00 | Window Closed / Lapsed |