US4952330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonaqueous electrolyte
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1989-05-25
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Granted: 1990-08-28
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Expires: 2009-05-25
Abstract
Abstract The invention relates to a nonaqueous electrolyte for cells such as Li/FeS 2 cells, comprising a solute, such as LiCF 3 SO 3 , dissolved in a mixture of a major amount of dioxolane (i.e. 40-53 volume percent), a minor amount of propylene carbonate (i.e. 8-18 volume percent) and dimethoxyethane (i.e. 32-40 volume percent).
Inventors
- 👤 Violeta Z. Leger
- 👤 Jack W. Marple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:34
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/056; H01M10/0564; H01M10/0566; H01M10/0569; H01M4/00; H01M4/02; H01M4/36; H01M6/00; H01M6/14; H01M6/16; H01M6/162; H01M6/164; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
51 words
An organic electrolyte solution for use in an electrochemical cell comprising a solute dissolved in a mixture of 32 to 45 volume percent of a linear aliphatic ether; 40 to 53 volume percent of a polymerizable component of a cyclic ether; and 8 to 18 volume percent of an alkylene carbonate.
Claim 2
Dependent Claim
51 words
An organic electrolyte solution for use in an electrochemical cell comprising a solute dissolved in a mixture of 32 to 45 volume percent of a linear aliphatic ether; 40 to 53 volume percent of a polymerizable component of a cyclic ether; and 8 to 18 volume percent of an alkylene carbonate.
Claim 3
Dependent Claim
29 words
The organic electrolyte solution of claim 1 wherein the alkylene carbonate comprises at least one solvent selected from the group consisting of propylene carbonate, ethylene carbonate, and butylene carbonate.
Claim 4
Dependent Claim
40 words
The organic electrolyte solution of claim 1 wherein the linear aliphatic ether comprises at least one solvent selected from the group consisting of dimethoxyethane, dimethylether of diethylene glycol, dimethylether of triethylene glycol, dibutylether of diethylene glycol, diethylether, and diisopropyl ether.
Claim 5
Dependent Claim
14 words
The organic electrolyte solution of claim 2 wherein the alkylene carbonate is propylene carbonate.
Claim 6
Dependent Claim
17 words
The organic electrolyte solution of claim 1 wherein the polymerizable component of a cyclic ether is dioxolane.
Claim 7
Dependent Claim
14 words
The organic electrolyte solution of claim 3 wherein the linear aliphatic ether is dimethoxyethane.
Claim 8
Dependent Claim
30 words
The organic electrolyte solution of claim 1 wherein the alkylene carbonate is propylene carbonate; the polymerizable component of a cyclic ether is dioxolane; and the linear aliphatic ether is dimethoxyethane.
Claim 9
Dependent Claim
49 words
The organic electrolyte solution of claim 7 wherein the propylene carbonate is present in an amount of 9 to 15 volume percent; the dioxolane is present in an amount of 45 to 50 volume percent; and the dimethoxyethane is present in an amount of 35 to 40 volume percent.
Claim 10
Dependent Claim
37 words
The organic electrolyte solution of claim 8 wherein the amount of propylene carbonate is about 10 volume percent; the amount of dioxolane is about 50 volume percent; and the amount of dimethoxyethane is about 40 volume percent.
Claim 11
Dependent Claim
42 words
The organic electrolyte solution of claim 1 wherein the solute is selected from the group consisting of lithium trifluoromethanesulfonate (LiCF 3 SO 3 ); lithium perchlorate (LiClO 4 ), lithium hexafluoroarsenate (LiAsF 6 ), lithiun hexafluorophosphate (LiPF 6 ), and mixtures thereof.
Claim 12
Dependent Claim
40 words
The organic electrolyte solution of claim 1 in a cell with a cathode and anode, and wherein the cathode is selected from the group consisting of fluorinated carbon, a metal sulfide, a metal oxide, a metal chloride and mixtures thereof.
Claim 13
Dependent Claim
35 words
The organic electrolyte solution of claim 1 in a cell with an anode and a cathode, and wherein the anode is selected from the group consisting of lithium, sodium, potassium, calcium, magnesium and their alloys.
Claim 14
Dependent Claim
21 words
The organic electrolyte solution of claim 8 in a cell with a cathode of iron sulfide and an anode of lithium.
Claim 15
Dependent Claim
18 words
The organic electrolyte solution of claim 13 wherein said solute is lithium trifluoromethanesulfonate (LiCF 3 SO 3 ).
Claim 16
Dependent Claim
34 words
The organic electrolyte solution of claim 14 wherein the amount of propylene carbonate is 10 volume percent; the amount of dioxolane is 50 volume percent; and the amount of dimethoxyethane is 40 volume percent.
Claim 17
Dependent Claim
24 words
The organic electrolyte solution of claim 1 in a cell employing a coiled rolled electrode assembly comprising an anode electrode and a cathode electrode.
Claim 18
Dependent Claim
27 words
The organic electrolyte solution of claim 13 in a cell in which the lithium anode cathode and iron sulfide cathode are rolled into a coiled rolled assembly.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-08-27 | 1994-02-26 | 1994-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-27 | 1998-02-26 | 1998-08-28 | $3760.00 | Window Closed / Lapsed |
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