US4315976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated active anodes
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1979-12-21
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Granted: 1982-02-16
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Expires: 1999-12-21
Abstract
Abstract Active anodes, such as lithium, sodium and calcium, coated with an electrically nonconductive and chemically and electrochemically inert particulate material, such as talc, and a process for coating the anodes so as to facilitate the handling of the anodes prior to and during assembly into a cell.
Inventors
- 👤 Alfred L. Conte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:54
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M4/40; H01M4/06; H01M6/00; H01M6/14; H01M6/16; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
46 words
An active anode member selected from the group consisting of lithium, sodium and calcium, coated on its surface with an electrically nonconductive and chemically and electrochemically inert particulate material in an amount between about 0.1 milligram per square centimeter and about 8 milligram per square centimeter.
Claim 2
Dependent Claim
46 words
An active anode member selected from the group consisting of lithium, sodium and calcium, coated on its surface with an electrically nonconductive and chemically and electrochemically inert particulate material in an amount between about 0.1 milligram per square centimeter and about 8 milligram per square centimeter.
Claim 3
Dependent Claim
29 words
The active anode member of claim 1 wherein the particulate material is in an amount between about 0.3 milligram per square centimeter and about 4 milligrams per square centimeter.
Claim 4
Dependent Claim
29 words
The active anode member of claim 1 wherein the particulate material is selected from the group consisting of talc, zinc oxide, alumina, lithium oxide, sodium oxide and calcium oxide.
Claim 5
Dependent Claim
30 words
The active anode member of claim 3 wherein the anode is lithium and the particulate material is selected from the group consisting of talc, zinc oxide, alumina and lithium oxide.
Claim 6
Dependent Claim
30 words
The active anode member of claim 3 wherein the anode is sodium and the particulate material is selected from the group consisting of talc, zinc oxide, alumina and sodium oxide.
Claim 7
Dependent Claim
30 words
The active anode member of claim 3 wherein the anode is calcium and the particulate material is selected from the group consisting of talc, zinc oxide, alumina and calcium oxide.
Claim 8
Dependent Claim
17 words
The active anode member of claim 3 wherein the anodeis lithium and the particulate material is talc.
Claim 9
Dependent Claim
44 words
An electrochemical cell employing an active cathode material, an electrolyte and an active anode member coated with an electrically nonconductive and chemically and electrochemically inert particulate material in an amount between about 0.1 milligram per square centimeter and about 8 milligram per square centimeter.
Claim 10
Dependent Claim
44 words
An electrochemical cell employing an active cathode material, an electrolyte and an active anode member coated with an electrically nonconductive and chemically and electrochemically inert particulate material in an amount between about 0.1 milligram per square centimeter and about 8 milligram per square centimeter.
Claim 11
Dependent Claim
26 words
The cell of claim 8 wherein the particulate material is in an amount between about 0.3 milligramper square centimeter and about 4 milligrams per square centimeter.
Claim 12
Dependent Claim
41 words
The cell of claim 8 wherein the anode is selected from the group consisting of lithium, sodium and calcium and the particulate material is selected from the group consisting of talc, zinc oxide, alumina, lithium oxide, sodium oxide and calcium oxide.
Claim 13
Dependent Claim
28 words
The cell of claim 8 wherein the anode is lithium and the particulate material is selected from the group consisting of talc, zinc oxide, alumina and lithium oxide.
Claim 14
Dependent Claim
28 words
The cell of claim 8 wherein the anode is sodium and the particulate material is selected from the group consisting of talc, zinc oxide, alumina and sodium oxide.
Claim 15
Dependent Claim
28 words
The cell of claim 8 wherein the anode is calcium and the particulate material is selected from the group consisting of talc, zinc oxide, alumina and calcium oxide.
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) | 1985-02-15 | 1985-08-17 | 1986-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-15 | 1989-08-17 | 1990-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-15 | 1993-08-17 | 1994-02-16 | $7700.00 | Window Closed / Lapsed |