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US4804596A
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Electrode material/electrolyte system for non-aqueous cells
Assignee: Enersys Advanced Systems Inc
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Filing: 1988-01-21
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Granted: 1989-02-14
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Expires: 2008-01-21
Abstract
Abstract A lithium non-aqueous secondary electrochemical cell is disclosed having an ester-based organic electrolyte solution and a cathode active material comprising Li x CoO 2 , (0<×≦1).
Inventors
- 👤 Walter B. Ebner
- 👤 Hsiu-Ping W. Lin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:10
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/052; H01M10/056; H01M10/0564; H01M10/0566; H01M10/0568; H01M10/0569; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/52; H01M4/525; H01M6/00; H01M6/14; H01M6/16; H01M6/162; H01M6/164; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
28 words
An active metal non-aqueous electrochemical cell comprising: a lithium anode; an organic ester-based organic electrolyte solution and a cathode active material comprising Li x CoO 2 where 0<×<1.0.
Claim 2
Dependent Claim
28 words
An active metal non-aqueous electrochemical cell comprising: a lithium anode; an organic ester-based organic electrolyte solution and a cathode active material comprising Li x CoO 2 where 0<×<1.0.
Claim 3
Dependent Claim
18 words
The cell of claim 1 wherein said ester is selected from methyl formate, methyl acetate and combinations thereof.
Claim 4
Dependent Claim
11 words
The cell of claim 1 wherein said ester is methyl acetate.
Claim 5
Dependent Claim
13 words
The cell of claim 2 including an amount of LiAsF 6 electrolyte salt.
Claim 6
Dependent Claim
13 words
The cell of claim 3 including an amount of LiAsF 6 electrolyte salt.
Claim 7
Dependent Claim
15 words
The cell of claim 4 wherein the electrolyte includes an amount of LiBF 4 .
Claim 8
Dependent Claim
15 words
The cell of claim 5 wherein the electrolyte includes an amount of LiBF 4 .
Claim 9
Dependent Claim
24 words
A lithium non-aqueous secondary electrochemical cell having an ester-based organic eletrolyte solvent and a cathode active material comprising Li x CoO 2 , (0<×≦1).
Claim 10
Dependent Claim
24 words
A lithium non-aqueous secondary electrochemical cell having an ester-based organic eletrolyte solvent and a cathode active material comprising Li x CoO 2 , (0<×≦1).
Claim 11
Dependent Claim
19 words
The cell of claim 8 wherein said electrolyte solvent is selected from methyl formate, methyl acetate and mixtures thereof.
Claim 12
Dependent Claim
12 words
The cell of claim 9 wherein said electrolyte solvent is methyl acetate.
Claim 13
Dependent Claim
14 words
The cell of claim 9 further comprising an amount of LiAsF 6 electrolyte salt.
Claim 14
Dependent Claim
14 words
The cell of claim 10 further comprising an amount of LiAsF 6 electrolyte salt.
Claim 15
Dependent Claim
16 words
The cell of claim 11 wherein the electrolyte further comprises an amount of LiBF 4 .
Claim 16
Dependent Claim
16 words
The cell of claim 12 wherein the electrolyte further comprises an amount of LiBF 4 .
References Cited (Backward Citations)
US4497726A
Cited
US4463071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-14 | 1992-08-15 | 1993-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-14 | 1996-08-15 | 1997-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-14 | 2000-08-15 | 2001-02-14 | $7700.00 | Window Closed / Lapsed |