US4233375A
Expired / Lapsed
US
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High energy density plural chalcogenide cathode-containing cell
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1979-08-02
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Granted: 1980-11-11
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Expires: 1999-08-02
Abstract
Abstract The present invention is directed to electric current-producing cells having specified mixed cathodes. The cells comprise: (a) an anode having as its anode-active material one or more metals selected from the group consisting of the Periodic Table Group IA metals, Group IB metals, Group IIA metals and Group IIB metals; (b) a cathode having as its cathode-active material a mixture containing: (i) one or more cathode-active, high energy density chalcogenide compounds selected from the group consisting of VS a , VO a , C x S, MoO z and MoS z , wherein a is a numerical value of about 1.8 to about 2.7, wherein x is a numerical value of about 4 to about 16 and wherein z is a numerical value of about 2.5 to about 3.5; and (ii) one or more cathode-active, high rate chalcogenide compounds selected from the group consisting of TiS y , TiSe y and VSe y wherein y is a numerical value of about 1.8 to about 2.2; and (c) an electrolyte which is chemically inert with respect to said anode and said cathode and which permits the migration of ions between said anode and said cathode. A preferred embodiment contains a lithiumactive material anode and a cathode containing a mixture of MoS 3 and TiS 2 .
Inventors
- 👤 M. Stanley Whittingham
- 👤 Allan J. Jacobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:30
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/581; H01M4/5815; H01M4/362; H01M4/364; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
192 words
An electric current producing cell, comprising: (a) an anode having as its anode-active material one or more metals selected from the group consisting of the Periodic Table Group IA metals, Group IB metals, Group IIA metals and Group IIB metals; (b) a cathode having as its cathode-active material a mixture containing: (i) one or more cathode-active, high energy density chalcogenide compounds selected from the group consisting of VS a , VO a , partially substituted analogs of VS a , C x S, MoO z and MoS z , wherein a is a numerical value of about 1.8 to about 2.7, wherein x is a numerical value of about 4 to about 16, wherein z is a numerical value of about 2.5 to about 3.5; and (ii) one or more cathode-active, high rate, high conductivity chalcogenide compounds selected from the group consisting of TiS y , TiSe y and VSe y , wherein y is numerical value of about 1.8 to about 2.2; and (c) an electrolyte which is chemically inert with respect to said anode and said cathode and which permits the migration of ions between said anode and said cathode.
Claim 2
Dependent Claim
192 words
An electric current producing cell, comprising: (a) an anode having as its anode-active material one or more metals selected from the group consisting of the Periodic Table Group IA metals, Group IB metals, Group IIA metals and Group IIB metals; (b) a cathode having as its cathode-active material a mixture containing: (i) one or more cathode-active, high energy density chalcogenide compounds selected from the group consisting of VS a , VO a , partially substituted analogs of VS a , C x S, MoO z and MoS z , wherein a is a numerical value of about 1.8 to about 2.7, wherein x is a numerical value of about 4 to about 16, wherein z is a numerical value of about 2.5 to about 3.5; and (ii) one or more cathode-active, high rate, high conductivity chalcogenide compounds selected from the group consisting of TiS y , TiSe y and VSe y , wherein y is numerical value of about 1.8 to about 2.2; and (c) an electrolyte which is chemically inert with respect to said anode and said cathode and which permits the migration of ions between said anode and said cathode.
Claim 3
Dependent Claim
21 words
The cell of claim 1 wherein said anode has as its anode-active material one or more metals selected from Group IA.
Claim 4
Dependent Claim
30 words
The cell of claim 2, wherein said high rate, high conductivity chalcogenide compounds are selected from the group consisting of TiS 2 , VSe 2 , and TiSe 2 .
Claim 5
Dependent Claim
11 words
The cell of claim 2, wherein said anode-active material is lithium.
Claim 6
Dependent Claim
15 words
The cell of claim 2, wherein said high rate chalcogenide compound is TiS 2 .
Claim 7
Dependent Claim
15 words
The cell of claim 1 wherein said variable a is about 2.0 to about 2.5.
Claim 8
Dependent Claim
30 words
The cell of claim 6, wherein said high rate, high conductivity chalcogenide compounds are selected from the group consisting of TiS 2 , VSe 2 , and TiSe 2 .
Claim 9
Dependent Claim
11 words
The cell of claim 6, wherein said anode-active material is lithium.
Claim 10
Dependent Claim
15 words
The cell of claim 6, wherein said high rate chalcogenide compound is TiS 2 .
Claim 11
Dependent Claim
15 words
The cell of claim 1 wherein said variable x is about 4 to about 10.
Claim 12
Dependent Claim
30 words
The cell of claim 10, wherein said high rate, high conductivity chalcogenide compounds are selected from the group consisting of TiS 2 , VSe 2 , and TiSe 2 .
Claim 13
Dependent Claim
11 words
The cell of claim 10, wherein said anode-active material is lithium.
Claim 14
Dependent Claim
15 words
The cell of claim 10, wherein said high rate chalcogenide compound is TiS 2 .
Claim 15
Dependent Claim
15 words
The cell of claim 1 wherein said variable y is about 1.8 to about 2.05.
Claim 16
Dependent Claim
30 words
The cell of claim 14, wherein said high rate, high conductivity chalcogenide compounds are selected from the group consisting of TiS 2 , VSe 2 , and TiSe 2 .
Claim 17
Dependent Claim
11 words
The cell of claim 14, wherein said anode-active material is lithium.
Claim 18
Dependent Claim
15 words
The cell of claim 14, wherein said high rate chalcogenide compound is TiS 2 .
Claim 19
Dependent Claim
15 words
The cell of claim 1 wherein said variable z is about 2.8 to about 3.2.
Claim 20
Dependent Claim
30 words
The cell of claim 18, wherein said high rate, high conductivity chalcogenide compounds are selected from the group consisting of TiS 2 , VSe 2 , and TiSe 2 .
Claim 21
Dependent Claim
11 words
The cell of claim 18, wherein said anode-active material is lithium.
Claim 22
Dependent Claim
15 words
The cell of claim 18, wherein said high rate chalcogenide compound is TiS 2 .
Claim 23
Dependent Claim
58 words
The cell of claim 1 wherein said high energy density chalcogenide compounds are selected from the group consisting of VS 2 .5 (or V 2 S 5 ), VS 2 , VO 2 .5 (or V 2 O 5 ), VO 2 .13 (or V 6 O 13 ), C x S, MoS 3 and MoO 3 .
Claim 24
Dependent Claim
30 words
The cell of claim 22, wherein said high rate, high conductivity chalcogenide compounds are selected from the group consisting of TiS 2 , VSe 2 , and TiSe 2 .
Claim 25
Dependent Claim
11 words
The cell of claim 22, wherein said anode-active material is lithium.
Claim 26
Dependent Claim
15 words
The cell of claim 22, wherein said high rate chalcogenide compound is TiS 2 .
Claim 27
Dependent Claim
30 words
The cell of claim 1, wherein said high rate, high conductivity chalcogenide compounds are selected from the group consisting of TiS 2 , VSe 2 , and TiSe 2 .
Claim 28
Dependent Claim
11 words
The cell of claim 1, wherein said anode-active material is lithium.
Claim 29
Dependent Claim
15 words
The cell of claim 1, wherein said high rate chalcogenide compound is TiS 2 .
Claim 30
Dependent Claim
30 words
The cell of claim 1 wherein said anode-active material is lithium, said high energy density chalcogenide compound is MoS 3 and said high rate chalcogenide compound is TiS 2 .
Claim 31
Dependent Claim
30 words
The cell of claim 1 wherein said anode-active material is lithium, said high energy density chalcogenide compound is MoS 3 and said high rate chalcogenide compound is VSe 2 .
Claim 32
Dependent Claim
19 words
The cell of claim 29 or 30 wherein said electrolyte is a lithium salt dissolved in a cyclic ether.
References Cited (Backward Citations)
US3791867A
Cited
US4009052A
Cited
US3992222A
Cited
US4118549A
Cited
US4066824A
Cited
US4075397A
Cited
US4144384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |