US4465744A
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US
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Super ionic conductive glass
Assignee: United States Department of Energy
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Filing: 1982-11-30
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Granted: 1984-08-14
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Expires: 2002-11-30
Abstract
Abstract An ionically conducting glass for use as a solid electrolyte in a power or secondary cell containing an alkali metal-containing anode and a cathode separated by an alkali metal ion conducting glass having an ionic transference number of unity and the general formula: A1+xD2-x/3SixP3-xO12-2x/3, wherein A is a network modifier for the glass and is an alkali metal of the anode, D is an intermediate for the glass and is selected from the class consisting of Zr, Ti, Ge, Al, Sb, Be, and Zn and X is in the range of from 2.25 to 3.0. Of the alkali metals, Na and Li are preferred and of the intermediate, Zr, Ti and Ge are preferred.
Inventors
- 👤 Sherman Susman
- 👤 Kenneth J. Volin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:20
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/062; C03C3/076; C03C3/097; C03C4/00; C03C4/18; H; H01; H01M; H01M10/00; H01M10/36; H01M10/39; H01M6/00; H01M6/14; H01M6/18; H01M6/185; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
61 words
An ionically conductive glass having the general formula: A 1+x D 2-x/3 Si x P 3-x O 12-2x/3 , wherein A is an alkali metal, D is selected from the class consisting of Zr and mixtures of Zr and one or more of Ti, Ge, Al, Sb, Be, and Zn, and X is in the range of from 2.25 to 3.0.
Claim 2
Dependent Claim
61 words
An ionically conductive glass having the general formula: A 1+x D 2-x/3 Si x P 3-x O 12-2x/3 , wherein A is an alkali metal, D is selected from the class consisting of Zr and mixtures of Zr and one or more of Ti, Ge, Al, Sb, Be, and Zn, and X is in the range of from 2.25 to 3.0.
Claim 3
Dependent Claim
18 words
The ionically conductive glass of claim 1, wherein said alkali metal is Li, Na, K or mixtures thereof.
Claim 4
Dependent Claim
30 words
The ionically conductive glass of claim 2, wherein D is selected from the class consisting of Zr and mixtures of Zr and one or more of Al, Ti, and Ge.
Claim 5
Dependent Claim
19 words
The ionically conductive glass of claim 1, wherein said alkali metal is Li or Na and D is Zr.
Claim 6
Dependent Claim
17 words
The ionically conductive glass of claim 1, wherein the alkali metal is Na and D is Zr.
Claim 7
Dependent Claim
17 words
The ionically conductive glass of claim 1, wherein the alkali metal is Li and D is Zr.
Claim 8
Dependent Claim
30 words
The ionically conductive glass of claim 1, wherein x=3, A is Na, D is Zr and the formula is: (Na 2 O) 2 ZrO 2 (SiO 2 ) 3 .
Claim 9
Dependent Claim
17 words
The ionically conductive glass of claim 1, wherein the ionic transference number of said glass is unity.
Claim 10
Dependent Claim
85 words
A cell comprising an alkali metal-containing anode and a cathode separated by an alkali metal ion conducting glass having an ionic transference number of unity and the general formula: A 1+x D 2-x/3 Si x P 3-x O 12-2x/3 , wherein A is an alkali metal of the anode, D is selected from the class consisting of Zr and mixtures of Zr and one or more of Ti, Ge, Al, Sb, Be, and Zn and X is in the range of from 2.25 to 3.0.
Claim 11
Dependent Claim
85 words
A cell comprising an alkali metal-containing anode and a cathode separated by an alkali metal ion conducting glass having an ionic transference number of unity and the general formula: A 1+x D 2-x/3 Si x P 3-x O 12-2x/3 , wherein A is an alkali metal of the anode, D is selected from the class consisting of Zr and mixtures of Zr and one or more of Ti, Ge, Al, Sb, Be, and Zn and X is in the range of from 2.25 to 3.0.
Claim 12
Dependent Claim
21 words
The cell of claim 9, wherein said cell is a power cell having an anode containing Li, Na or alloys thereof.
Claim 13
Dependent Claim
34 words
The cell of claim 10, wherein D is selected from the class consisting of Zr and mixtures of Zr and one or more of Ti, Ge and the cathode contains sulfur or compounds thereof.
Claim 14
Dependent Claim
17 words
The cell of claim 9, wherein said anode contains Na, A is Na and D is Zr.
Claim 15
Dependent Claim
21 words
The cell of claim 9, wherein said cell is a secondary cell with an anode containing Li, Na or alloys thereof.
Claim 16
Dependent Claim
36 words
The cell of claim 13, wherein D is selected from the class consisting of Zr and mixtures of Zr and one or more of Al, Ti and Ge and the cathode contains a transition metal chalcogen.
Claim 17
Dependent Claim
17 words
The cell of claim 13, wherein said anode contains Li, A is Li and D is Zr.
Claim 18
Dependent Claim
77 words
A solid electrolyte for a battery having an anode containing an alkali metal, said solid electrolyte including a glass having the general formula: Ahd 1+xD 2-x/3 Si x P 3-x O 12-2x/3 , wherein A is an alkali metal, D is selected from the class consisting of Zr and mixtures of Zr and one or more of Ti, Al, Sb, Be, Zn, Ge and mixtures thereof, and X is in the range of from 2.25 to 3.0.
Claim 19
Dependent Claim
77 words
A solid electrolyte for a battery having an anode containing an alkali metal, said solid electrolyte including a glass having the general formula: Ahd 1+xD 2-x/3 Si x P 3-x O 12-2x/3 , wherein A is an alkali metal, D is selected from the class consisting of Zr and mixtures of Zr and one or more of Ti, Al, Sb, Be, Zn, Ge and mixtures thereof, and X is in the range of from 2.25 to 3.0.
Claim 20
Dependent Claim
38 words
The solid electrolyte of claim 16, wherein A is Li, Na, K or mixtures thereof and D is selected from the class consisting of Zr and mixtures of Zr and one or more of Al Ti, and Ge.
Claim 21
Dependent Claim
14 words
The solid electrolyte of claim 17, wherein A is Na and D is Zr.
Claim 22
Dependent Claim
17 words
The solid electrolyte of claim 16, wherein the ionic transference number of said solid electrolyte is 1.
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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) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |