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US4293623A
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Electrolytes for alkali-metal electrochemical devices
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1980-07-03
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Granted: 1981-10-06
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Expires: 2000-07-03
Abstract
Abstract An electrolyte for an alkali metal electrochemical device features (a) an organic solvent; and (b) at least one electrolytically active alkali-metal complex anion salt. The salt has the formula: ZMRxQy wherein Z is an alkali-metal; wherein M is an element selected from a group consisting of B, Al, Ga, In, Tl, P, As, Zn, Cd and Sn (stannous); wherein Q represents at least one heteroatom grouping bonded to M, the core element, through a carbon-M bond; wherein R is selected from a group consisting of: heteroatom-containing groups bonded to M, the core element, through the heteroatom site, alkyls, aryls, alkaryls, aralkyls, halogens, halogen substituted aryls, halogen substituted alkaryls, and pseudohalides; and wherein x and y are positive integers, a sum of x plus y being equal to one plus the valence of the metal M, and further, wherein x can be zero.
Inventors
- 👤 Lawrence P. Klemann
- 👤 Gerald H. Newman
- 👤 Eugene L. Stogryn
- 👤 Thomas A. Whitney
- 👤 Dan Farcasiu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:46
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/056; H01M10/0564; H01M10/0566; H01M6/00; H01M6/14; H01M6/16; H01M6/162; H01M6/166; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
161 words
An electrolyte for an alkali-metal electrochemical device, comprising: (a) an organic solvent selected from a group consisting of ethers, esters, sulfones, organic sulfites, organic sulfates, organic nitrites and organic nitro compounds; and (b) at least one electrolytically active alkali-metal complex anion salt having the formula: ZMR.sub.x Q.sub.y wherein Z is an alkali metal; wherein M is an element selected from a group consisting of B, Al, Ga, In, Tl, P, As, Zn, Cd and Sn (stannous); wherein Q represents at least one heteroatom grouping bonded to M, the core element, through a carbon-M bond; wherein R is selected from the group consisting of: heteroatom-containing groups bonded to M, the core element, through the heteroatom site, alkyls, aryls, alkaryls, aralkyls, halogens, halogen substituted aryls, halogen substituted alkaryls, and pseudohalides; and wherein x and y are positive integers, a sum of x plus y being equal to one plus the valence of the core element M, and further, wherein x can be zero.
Claim 2
Dependent Claim
161 words
An electrolyte for an alkali-metal electrochemical device, comprising: (a) an organic solvent selected from a group consisting of ethers, esters, sulfones, organic sulfites, organic sulfates, organic nitrites and organic nitro compounds; and (b) at least one electrolytically active alkali-metal complex anion salt having the formula: ZMR.sub.x Q.sub.y wherein Z is an alkali metal; wherein M is an element selected from a group consisting of B, Al, Ga, In, Tl, P, As, Zn, Cd and Sn (stannous); wherein Q represents at least one heteroatom grouping bonded to M, the core element, through a carbon-M bond; wherein R is selected from the group consisting of: heteroatom-containing groups bonded to M, the core element, through the heteroatom site, alkyls, aryls, alkaryls, aralkyls, halogens, halogen substituted aryls, halogen substituted alkaryls, and pseudohalides; and wherein x and y are positive integers, a sum of x plus y being equal to one plus the valence of the core element M, and further, wherein x can be zero.
Claim 3
Dependent Claim
14 words
The electrolyte of claim 1, wherein said solvent preferably comprises at least one ether.
Claim 4
Dependent Claim
13 words
The electrolyte of claim 2, wherein one of said preferred ethers is dioxolane.
Claim 5
Dependent Claim
12 words
The electrolyte of claim 3, wherein said dioxolane is mixed with dimethoxyethane.
Claim 6
Dependent Claim
19 words
The electrolyte of claim 1, wherein Z is preferably selected from a group consisting of: Li, Na, and K.
Claim 7
Dependent Claim
10 words
The electrolyte of claim 5, wherein Z is preferably Li.
Claim 8
Dependent Claim
10 words
The electrolyte of claim 1, wherein M is preferably B.
Claim 9
Dependent Claim
31 words
The electrolyte of claim 1, wherein the heteroatom groupings defined by Q are selected from a group consisting of: ##STR26## where: X' is an alkyl having 1 to 3 carbon atoms.
Claim 10
Dependent Claim
41 words
The electrolyte of claim 1, wherein the heteroatom groupings defined by Q are bonded to M in a cyclic structure such as: ##STR27## where: Y is O, S, or NX', and X' is an alkyl having 1 to 3 carbon atoms.
Claim 11
Dependent Claim
18 words
The electrolyte of claim 9, wherein the heteroatom groupings defined by Q can be the same or different.
Claim 12
Dependent Claim
18 words
The electrolyte of claim 1 wherein the heteroatom groupings defined by Q can be the same or different.
Claim 13
Dependent Claim
29 words
The electrolyte of claim 1, wherein at least one heteroatom grouping as defined by Q and at least one heteroatom-containing group as defined by R are bonded to M.
Claim 14
Dependent Claim
27 words
The electrolyte of claim 1, wherein M is boron and wherein two heteroatom groupings defined by Q and two groups defined by R are bonded to M.
Claim 15
Dependent Claim
22 words
The electrolyte of claim 13, wherein all the Q heteroatom groupings are the same, and all the R groups are the same.
Claim 16
Dependent Claim
13 words
The electrolyte of claim 14, wherein all the R groups are phenyl groups.
Claim 17
Dependent Claim
31 words
The electrolyte of claim 1, wherein the heteroatom-containing groups defined by R are selected from a group consisting of: ##STR28## where X' is an alkyl having 1 to 3 carbon atoms.
Claim 18
Dependent Claim
15 words
The electrolyte of claim 16, wherein the heteroatom-containing groups defined by R are preferably ##STR29##
Claim 19
Dependent Claim
31 words
The electrolyte of claim 1, wherein the pseudohalides defined by R are selected from a group consisting of: SCN - ; SeCN - ; CN - ; and OCN - .
Claim 20
Dependent Claim
22 words
The electrolyte of claim 1, wherein the alkali-metal electrochemical device is a lithium battery cell hving a solid electrode for a cathode.
Claim 21
Dependent Claim
15 words
The electrolyte of claim 1, wherein the alkali-metal electrochemical device is a Li/TiS 2 battery.
References Cited (Backward Citations)
US4060674A
Cited
US4104450A
Cited
US4117213A
Cited
US4104451A
Cited
US4139681A
Cited
US4169808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |