US4497726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode material
Assignee: Combustion Engineering Inc
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Filing: 1983-05-31
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Granted: 1985-02-05
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Expires: 2003-05-31
Abstract
Abstract A cathode active material, which is especially useful as the cathode in a lithium high energy density nonaqueous cell operating on the principle of intercalation, has the general formula Li x M y M' z O 2-n F n where M is selected from the group consisting of metallic ions having a valence of +1 other than lithium and metallic radicals having a valence of +1; M' is selected from the group consisting of Fe, Co and Ni; x is 0.01 to 0.99 and y is 0.99 to 0.01, respectively; z is 0.8 to 1.2; and n is zero to 0.1.
Inventors
- 👤 James E. Brule
- 👤 James K. O'Neill
- 👤 David N. Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:17
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/52; H01M4/525; C; C01; C01G; C01G49/00; C01G49/009; C01G51/00; C01G51/40; C01G51/42; C01G53/00; C01G53/40; C01G53/42; C01P; C01P2002/00; C01P2002/50; C01P2002/52; C01P2006/00; C01P2006/40; H01M10/00; H01M10/05; H01M10/052; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
80 words
A cathode active material having the general formula Li x M y M' z O 2-n F n wherein M is selected from the group consisting of metallic ions having a valence of +1 other than lithium and metallic radicals having a valence of +1; M' is selected from the group consisting of Fe, Co and Ni; x is 0.01 to 0.99 and y is 0.99 to 0.01, respectively; z is 0.8 to 1.2; and n is zero to 0.1.
Claim 2
Dependent Claim
80 words
A cathode active material having the general formula Li x M y M' z O 2-n F n wherein M is selected from the group consisting of metallic ions having a valence of +1 other than lithium and metallic radicals having a valence of +1; M' is selected from the group consisting of Fe, Co and Ni; x is 0.01 to 0.99 and y is 0.99 to 0.01, respectively; z is 0.8 to 1.2; and n is zero to 0.1.
Claim 3
Dependent Claim
28 words
A cathode active material according to claim 1, wherein M is a metallic ion of a Group 1a metal of the Periodic Table of Elements other than lithium.
Claim 4
Dependent Claim
25 words
A cathode active material according to claim 1, wherein M is a metallic ion of a Group 1b Metal of the Periodic Table of Elements.
Claim 5
Dependent Claim
14 words
A cathode active material according to claim 1, wherein M is Hg + .
Claim 6
Dependent Claim
14 words
A cathode active material according to claim 1, wherein M is Tl + .
Claim 7
Dependent Claim
26 words
A cathode active material according to claim 1, wherein M is a metallic hydroxyl radical of a Group 2a metal of the Periodic Table of Elements.
Claim 8
Dependent Claim
26 words
A cathode active material according to claim 1, wherein M is a metallic halogeno radical of a Group 2a metal of the Periodic Table of Elements.
Claim 9
Dependent Claim
26 words
A cathode active material according to claim 7, wherein M is a metallic fluoro radical of a Group 2a metal of the Periodic Table of Elements.
Claim 10
Dependent Claim
26 words
A cathode active material according to claim 7, wherein M is a metallic chloro radical of a Group 2a metal of the Periodic Table of Elements.
Claim 11
Dependent Claim
19 words
A cathode active material according to claim 1 which is Li 0 .5 Na 0 .5 CoO 2 .
Claim 12
Dependent Claim
19 words
A cathode active material according to claim 1 which is Li 0 .5 Cu 0 .5 CoO 2 .
Claim 13
Dependent Claim
19 words
A cathode active material according to claim 1 which is Li 0 .5 (MgOH) 0 .5 CoO 2 .
Claim 14
Dependent Claim
19 words
A cathode active material according to claim 1 which is Li 0 .5 (MgF) 0 .5 CoO 2 .
Claim 15
Dependent Claim
22 words
A cathode active material according to claim 1 which is Li 0 .5 Na 0 .5 CoO 1 .9 F 0 .1.
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) | 1988-02-05 | 1988-08-06 | 1989-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-05 | 1992-08-06 | 1993-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-05 | 1996-08-06 | 1997-02-05 | $7700.00 | Window Closed / Lapsed |