US4329216A
Expired / Lapsed
US
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Electrolytic cell utilizing a transition metal-graphite intercalation compound cathode
Assignee: PPG Industries Inc
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Filing: 1981-04-03
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Granted: 1982-05-11
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Expires: 2001-04-03
Abstract
Abstract Disclosed is a method of electrolyzing an alkali metal chloride brine where the cathode is an intercalation compound of graphite and a transition metal. Also disclosed is a solid polymer electrolyte having as its cathode an intercalation compound of graphite and a transition metal, and an electrolytic cell having as its cathode an intercalation compound of graphite and a transition metal.
Inventors
- 👤 Donald W. DuBois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:48
CPC Classifications
C; C25; C25B; C25B9/00; C25B1/00; C25B1/01; C25B1/34; C25B1/46; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/091; C25B9/60
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
31 words
In an electrolytic cell having an anode, a cathode, and an ion permeable separator therebetween, the improvement wherein the cathode comprises an intercalation compound comprising graphite and a transition metal component.
Claim 2
Dependent Claim
31 words
In an electrolytic cell having an anode, a cathode, and an ion permeable separator therebetween, the improvement wherein the cathode comprises an intercalation compound comprising graphite and a transition metal component.
Claim 3
Dependent Claim
22 words
The electrolytic cell of claim 1 wherein the transition metal component is chosen from the group consisting of metals and salts thereof.
Claim 4
Dependent Claim
42 words
The electrolytic cell of claim 2 wherein the transition metal component is chosen from the group consisting of copper, cadmium, mercury, cobalt, gold, iron, nickel, chromium, ruthenium, rhodium, zirconium, hafnium, rhenium, palladium, platinum, iridium, tantalum, molybdenum, tungsten, salts thereof, and mixtures thereof.
Claim 5
Dependent Claim
61 words
The electrolytic cell of claim 3 wherein the transition metal component is chosen from the group consisting of Co, CoCl 2 , Cu, CuCl 2 , Cr, CrCl 3 , Fe, FeCl 3 , Ni, NiCl 2 , Pd, PdCl 2 , Pt, PtCl 4 , Rh, RhCl 3 , Ru, RuCl 3 , Ir, IrCl 4 , and mixtures thereof.
Claim 6
Dependent Claim
19 words
The electrolytic cell of claim 1 wherein the cathode is spaced from the ion permeable separator with electrolyte therebetween.
Claim 7
Dependent Claim
22 words
The electrolytic cell of claim 1 wherein the ion permeable separator is a permionic membrane and the cathode is in contact therewith.
Claim 8
Dependent Claim
15 words
The electrolytic cell of claim 6 wherein the cathode compressively bears upon the permionic membrane.
Claim 9
Dependent Claim
15 words
The electrolytic cell of claim 6 wherein the cathode is bonded to the permionic membrane.
Claim 10
Dependent Claim
39 words
A solid polymer electrolyte comprising a permionic membrane, anode means in contact with one surface thereof, and cathode means in contact with the opposite surface, said cathode means comprising an intercalation compound of graphite and a transition metal component.
Claim 11
Dependent Claim
39 words
A solid polymer electrolyte comprising a permionic membrane, anode means in contact with one surface thereof, and cathode means in contact with the opposite surface, said cathode means comprising an intercalation compound of graphite and a transition metal component.
Claim 12
Dependent Claim
23 words
The solid polymer electrolyte of claim 9 wherein the transition metal component is chosen from the group consisting of metals and chlorides thereof.
Claim 13
Dependent Claim
42 words
The solid polymer electrolyte of claim 10 wherein the transition metal is chosen from the group consisting of copper, cadmium, mercury, cobalt, gold, iron, nickel, chromium, ruthenium, rhodium, zirconium, hafnium, rhenium, palladium, platinum, iridium, tantalum, molybdenum, tungsten, chlorides thereof, and mixtures thereof.
Claim 14
Dependent Claim
62 words
The solid polymer electrolyte of claim 11 wherein the transition metal component is chosen from the group consisting of Co, CoCl 2 , Cu, CuCl 2 , Cr, CrCl 3 , Fe, FeCl 3 , Ni, NiCl 2 , Pd, PdCl 2 , Pt, PtCl 4 , Rh, RhCl 3 , Ru, RuCl 3 , Ir, IrCl 4 , and mixtures thereof.
Claim 15
Dependent Claim
17 words
The solid polymer electrolyte of claim 9 wherein the cathode means compressively bears upon the permionic membrane.
Claim 16
Dependent Claim
17 words
The solid polymer electrolyte of claim 9 wherein the cathode means are bonded to the permionic membrane.
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) | 1985-05-10 | 1985-11-09 | 1986-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-10 | 1989-11-09 | 1990-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-10 | 1993-11-09 | 1994-05-11 | $7700.00 | Window Closed / Lapsed |