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US4246327A
Expired / Lapsed
US
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High energy-density battery system
Assignee: Greatbatch Ltd
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Filing: 1979-10-01
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Granted: 1981-01-20
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Expires: 1999-10-01
Abstract
Abstract The battery system includes a metallic anode, a cathode/electrolyte comprising a liquid inorganic solvent containing a mixture of an interhalogen having a discharge potential higher than the solvent and a soluble salt of the anode metal, and a high-surface-area cathode current collector means coupled with the cathode/electrolyte.
Inventors
- 👤 Paul M. Skarstad
- 👤 Thomas G. Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:34
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M4/00; H01M4/02; H01M4/36; H01M4/58; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
76 words
A battery system having a metallic anode and a cathode/electrolyte, means electrochemically coupling the anode and cathode/electrolyte and wherein the cathode/electrolyte comprises an electrolyte solvent selected from the group consisting of aprotic inorganic liquid oxides, liquid halides and liquid oxyhalides which are solvents for at and containing least one salt of the anode metal, an interhalogen having a discharge potential higher than that of the electrolyte solvent selected and a soluble salt of the anode metal.
Claim 2
Dependent Claim
76 words
A battery system having a metallic anode and a cathode/electrolyte, means electrochemically coupling the anode and cathode/electrolyte and wherein the cathode/electrolyte comprises an electrolyte solvent selected from the group consisting of aprotic inorganic liquid oxides, liquid halides and liquid oxyhalides which are solvents for at and containing least one salt of the anode metal, an interhalogen having a discharge potential higher than that of the electrolyte solvent selected and a soluble salt of the anode metal.
Claim 3
Dependent Claim
14 words
The battery system of claim 1 wherein the coupling means comprises porous separator means.
Claim 4
Dependent Claim
11 words
The battery system of claim 1 wherein the anode comprises lithium.
Claim 5
Dependent Claim
14 words
The battery system of claim 1 wherein the electrolyte solvent is a phosphorous oxyhalide.
Claim 6
Dependent Claim
14 words
The battery system of claim 1 wherein the electrolyte solvent is a sulfur oxyhalide.
Claim 7
Dependent Claim
13 words
The battery system of claim 1 wherein the interhalogen is ICl 3 .
Claim 8
Dependent Claim
11 words
The battery system of claim 6 wherein the anode is lithium.
Claim 9
Dependent Claim
13 words
The battery system of claim 1 wherein the interhalogen is IF 5 .
Claim 10
Dependent Claim
12 words
The battery system of claim 1 including a high-surface-area cathode current collector.
Claim 11
Dependent Claim
16 words
The battery system of claim 9 wherein the collector is a body comprised of porous carbon.
Claim 12
Dependent Claim
14 words
The battery system of claim 10 wherein the cathode/electrolyte impregnates the porous carbon collector.
Claim 13
Dependent Claim
19 words
The battery system of claim 9 wherein the collector comprises a plurality of carbon particles dispersed throughout the cathode/electrolyte.
Claim 14
Dependent Claim
56 words
The battery system of claim 12 wherein the cathode/electrolyte and cathode current collector jointly comprise a body consisting essentially of a mixture of about 50-90% ICl 3 , balance carbon particles, and also containing an added amount of a solution of SOCl 2 and a soluble lithium salt, the solution being saturated with ICl 3 .
Claim 15
Dependent Claim
14 words
The battery system of claim 1 wherein the electrolyte solvent is SOCl 2 .
Claim 16
Dependent Claim
45 words
The battery system of claim 1 wherein the cathode/electrolyte and cathode current collector jointly comprise a mixture of the interhalogen and inert conductive particles and also containing an added amount of a solution of the electrolyte solvent and the soluble salt of the anode metal.
Claim 17
Dependent Claim
13 words
The battery system of claim 1 wherein the cathode/electrolyte comprises a liquid slurry.
Claim 18
Dependent Claim
14 words
The battery system of claim 1 wherein the electrolyte solvent is liquid sulfur dioxide.
Claim 19
Dependent Claim
43 words
A battery system comprising a lithium anode, a cathode/electrolyte comprising a solution of a soluble lithium salt and a mixture comprising a liquid oxyhalide and ICl 3 , cathode current collector means contacting the cathode/electrolyte, and means electrochemically coupling the anode and cathode/electrolyte.
Claim 20
Dependent Claim
43 words
A battery system comprising a lithium anode, a cathode/electrolyte comprising a solution of a soluble lithium salt and a mixture comprising a liquid oxyhalide and ICl 3 , cathode current collector means contacting the cathode/electrolyte, and means electrochemically coupling the anode and cathode/electrolyte.
Claim 21
Dependent Claim
15 words
The battery system of claim 18 in which IF 5 replaces the ICl 3 .
Claim 22
Dependent Claim
14 words
The battery system of claim 18 in which the ICl 3 saturates the cathode/electrolyte.
Claim 23
Dependent Claim
20 words
The battery system of claim 20 in which the cathode/electrolyte includes an excess reservoir amount of undissolved ICl 3 .
Claim 24
Dependent Claim
17 words
The battery system of claim 18 in which the cathode current collector means comprises a high-surface-area material.
Claim 25
Dependent Claim
18 words
The battery system of claim 18 in which the cathode current collector means comprises a porous carbon body.
Claim 26
Dependent Claim
19 words
The battery system of claim 18 in which the cathode current collector means is integrally incorporated into the cathode/electrolyte.
Claim 27
Dependent Claim
15 words
The battery system of claim 24 in which the cathode/electrolyte is a thickened paste-like material.
Claim 28
Dependent Claim
14 words
The battery system of claim 25 in which the cathode/electrolyte is a pressed body.
Claim 29
Dependent Claim
15 words
The battery system of claim 18 in which the coupling means comprises porous separator means.
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) | 1984-01-20 | 1984-07-21 | 1985-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-20 | 1988-07-21 | 1989-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-20 | 1992-07-21 | 1993-01-20 | $7700.00 | Window Closed / Lapsed |