US4312930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
MnO2 Derived from LiMn2 O4
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1980-08-25
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Granted: 1982-01-26
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Expires: 2000-08-25
Abstract
Abstract A new form of manganese dioxide having an x-ray diffraction pattern resembling none of the x-ray patterns of the known forms of manganese dioxide is manufactured by acid treatment of LiMn 2 O 4 .
Inventors
- 👤 James C. Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:31
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/50; H01M4/502; C; C01; C01G; C01G45/00; C01G45/02; C01G45/024; C01P; C01P2002/00; C01P2002/70; C01P2002/72; C01P2006/00; C01P2006/80; H01M6/00; H01M6/04; H01M6/14; H01M6/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
22 words
An electrochemical cell comprising an anode, a cathode, and an electrolyte, at least a portion of said cathode comprising λ-MnO 2 .
Claim 2
Dependent Claim
22 words
An electrochemical cell comprising an anode, a cathode, and an electrolyte, at least a portion of said cathode comprising λ-MnO 2 .
Claim 3
Dependent Claim
13 words
The electrochemical cell of claim 1 wherein said electrolyte is a non-aqueous electrolyte.
Claim 4
Dependent Claim
21 words
The electrochemical cell of claim 2 wherein said non-aqueous electrolyte is 1 molar LiBF 4 in 1:1 (volume ratio) propylene carbonate-dimethoxyethane.
Claim 5
Dependent Claim
13 words
The electrochemical cell of claim 3 wherein said anode is a Li anode.
Claim 6
Dependent Claim
13 words
The electrochemical cell of claim 2 wherein said electrolyte is an aqueous electrolyte.
Claim 7
Dependent Claim
13 words
The electrochemical cell of claim 2 wherein said electrolyte is a solid electrolyte.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |