US4258109A
Expired / Lapsed
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Solid state cells
Assignee: PR MALLORY & Co Inc INDIANAPOLIS IN A CORP OF DE
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Filing: 1977-04-25
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Granted: 1981-03-24
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Expires: 1997-04-25
Abstract
Abstract High energy density solid state cells using cathode materials of ionically and electronically conductive dischargeable compounds in combination with other non-conductive cathode active materials of higher energy density.
Inventors
- 👤 Charles C. Liang
- 👤 Ashok V. Joshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:36
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M4/00; H01M4/02; H01M4/36; H01M4/58; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
64 words
A solid state electrochemical cell comprising a solid active metal anode, a solid electrolyte and a solid cathode wherein said cathode consists of at least 90% cathode active materials and wherein said cathode consists essentially of a cathode active material having room temperature ionic and electronic conductivities ranging between 10 -10 to 10 2 ohm -1 cm -1 and a cathode active non-conductive chalcogenide.
Claim 2
Dependent Claim
64 words
A solid state electrochemical cell comprising a solid active metal anode, a solid electrolyte and a solid cathode wherein said cathode consists of at least 90% cathode active materials and wherein said cathode consists essentially of a cathode active material having room temperature ionic and electronic conductivities ranging between 10 -10 to 10 2 ohm -1 cm -1 and a cathode active non-conductive chalcogenide.
Claim 3
Dependent Claim
34 words
The solid state cell of claim 1 wherein said conductive cathode active material is selected from the group consisting of metal oxides non-stoichiometric metal oxides, metal iodides, metal hydroxides and metal and non-metallic chalcogenides.
Claim 4
Dependent Claim
17 words
The solid state cell of claim 2 wherein said conductive cathode active material is a metal chalcogenide.
Claim 5
Dependent Claim
16 words
The solid state cell of claim 3 wherein said conductive cathode active material is titanium disulfide.
Claim 6
Dependent Claim
88 words
The solid state cell of claim 1 wherein said non-conductive chalcogenide is selected from the group consisting of silver sulfide (Ag 2 S), lead sulfide (PbS), copper sulfide (CuS), lead selenide (PbSe), lead telluride (PbTe), antimony sulfides (Sb 2 S 5 ) and (Sb 2 S 3 ), bismuth sulfide (Bi 2 S 3 ), tin telluride (SnTe), mercury sulfide (HgS), arsenic sulfide (As 2 S 3 ), arsenic selenide (As 2 Se 3 ), antimony telluride (Sb 2 Te 3 ) and selenium sulfide (SeS 2 ).
Claim 7
Dependent Claim
13 words
The solid state cell of claim 1 wherein said solid anode comprises lithium.
Claim 8
Dependent Claim
14 words
The solid state cell of claim 1 wherein said solid electrolyte includes lithium iodide.
Claim 9
Dependent Claim
16 words
The solid state cell of claim 6 wherein said conductive cathode active material is titanium disulfide.
Claim 10
Dependent Claim
36 words
The solid state cell of claim 8 wherein said non-conductive chalcogenide is selected from the group consisting of As 2 S 3 , Sb 2 S 3 , Sb 2 S 5 and SeS 2 .
Claim 11
Dependent Claim
89 words
The solid state cell of claim 2 wherein said conductive cathode active material is selected from the group consisting of TiO 2 , MoO 3 , Ta 2 O 5 , V 2 O 5 , WO 3 , non-stoichiometric manganese oxide, CdI 2 , FeI 2 , GeI 2 , MnI 2 , TiI 2 , TlI 2 , VI 2 , YbI 2 , Cd(OH) 2 , Fe(OH) 2 , Mn(OH) 2 , SiTe 2 , and CS n , wherein "n" is between 0.001 and 1.0.
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) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |