WO1997013178B1 - Solid lithium-ion electrolyte - Google Patents

Solid lithium-ion electrolyte

Info

Publication number
WO1997013178B1
WO1997013178B1 PCT/US1996/015158 US9615158W WO9713178B1 WO 1997013178 B1 WO1997013178 B1 WO 1997013178B1 US 9615158 W US9615158 W US 9615158W WO 9713178 B1 WO9713178 B1 WO 9713178B1
Authority
WO
WIPO (PCT)
Prior art keywords
ceo
sio
ion
molar
cell
Prior art date
Application number
PCT/US1996/015158
Other languages
French (fr)
Other versions
WO1997013178A1 (en
Filing date
Publication date
Priority claimed from US08/540,046 external-priority patent/US5716736A/en
Application filed filed Critical
Priority to AU72423/96A priority Critical patent/AU699634B2/en
Priority to EP96933848A priority patent/EP0797788A4/en
Priority to JP51429297A priority patent/JP2002504259A/en
Publication of WO1997013178A1 publication Critical patent/WO1997013178A1/en
Publication of WO1997013178B1 publication Critical patent/WO1997013178B1/en

Links

Abstract

The present invention relates to the composition of a solid lithium-ion electrolyte based on the Li2O-CeO2-SiO2 system having good transparent characteristics and high ion conductivity suitable for uses in lithium batteries, electrochromic devices and other electrochemical applications.

Claims

AMENDED CLAIMS
[received by the International Bureau on 19 May 1997 (19.05.97); original claims 1-21 replaced'by amended claims 1-23 (2 pages)] 1. A lithium-ion conductor comprising electrolyte material consisting of Li2O- CeO2-SiO2.
2. The ion conductor of claim 1 wherein the electrolyte material comprises approximately 20% Li2O, 20% CeO2 and 60% SiO2 by molar.
3. The ion conductor of claim 1 wherein the electrolyte material comprises approximately 10% Li2O, 30% CeO2, and 60% SiO2 by molar.
4. The ion conductor of Claim 1 wherein the electrolyte material comprises approximately 30% Li2O, 20% CeO2, and 50% SiO2 by molar.
5. The ion conductor of Claim 1 wherein the electrolyte material comprises approximately 30% Li2O, 10% CeO2, 60% SiO2 by molar.
6. The ion conductor of Claim 1 wherein the electrolyte material comprises approximately 25% Li2O, 15% CeO2 , 60% SiO2 by molar.
7. The ion conductor of Caim 1 wherein the electrolyte material comprises molar percentages of 10% - 30% Li2O, 10% - 30% CeO2 , and 50% - 60% SiO2.
8. The ion conductor of Claim 1 wherein the electrolyte material is a film.
9. A method of forming an ion conductor film on a substrate comprising:
a) dissolving lithium nitride and ammonium-cerium-nitrate in water to form a first solution;
b) dissolving TEOS in ethanol to form a second solution;
c) mixing the first and second solutions to form a precursor;
d) coating the substrate with the precursor to form a film;
e) drying the film.
10. An ion conductor of a mixed oxide consisting of Li2O-CeOz-SiO2.
11. An electrochemical cell comprising
a) two layers of electrically conductive material;
b) a lithium-ion storage layer between the two layers of electrically' conductive material; c) an ion conducting layer comprising a Li2O-CeO2-SiO2 electrolyte material between one of the layers of electrically conducting material and the lithium-ion storage layer.
12. The cell of Claim 1 1 wherein the ion conducting layer comprises approximately
20% Li2O, 20% CeO2 and 60% SiO2 by molar.
13. The cell of Claim 11 wherein the ion conducting layer comprises 10% Li2O, 30% CeO2 and 60% SiO2 by molar,
14. The cell of Claim 1 1 wherein the ion conducting layer comprises approximately 30% Li2O, 20% CeO2, and 50% SiO2 by molar.
15. The cell of Claim 11 wherein the ion conducting layer comprises approximately 30% Li2O, 10% CeO2, and 60% SiO2 by molar.
16. The cell of Claim 1 1 wherein the ion conducting layer comprises approximately 25% Li2O, 15% CeO2, and 60% SiO2 by molar.
17. The cell of Claim 11 wherein the ion conducting layer comprises molar percentages of 10% - 30% Li2O, 10% - 30% CeO2, and 50% - 60% SiO2.
18. The cell of Claim 11 wherein the ion conducting layer is a film.
19. The cell of Claim 11 wherein the two layers of electrically conductive material are transparent.
20. The cell of Claim 11 wherein one of the layers of electrically conductive material is reflective.
21. The cell of Claim 11 further comprising an electrochromic layer between one of the layers of electrically conductive material and the ion conducting layer,
22. A thin film ion conductor positioned between an ion storage material and an electrochromic material, said thin film ion conductor comprising oxides of lithium, cerium, and silicon.
23. An electrolyte material for transmitting lithium ions between two different materials in response to an electric potential between said two different materials, said electrolyte material comprising a solid, thin film mixture of oxides of lithium, cerium, and silicon.
STATEMENT UNDER ARTICLE 19
The amended claims 1-23 presented in the replacement pages 1 1-12 accompanying the applicant's Amendment After Notification of Transmittal of the International Search Report Under Article 19(1), Rule 46, as described in the accompanying Letter Describing Differences Between Replaced Sheets and Replacement Sheets submitted concurrently herewith, are made to amend the claims to substantially the same form in the corresponding U.S. patent application. The Amendment defines the invention more clearly over the prior art cited in the corresponding U.S. application. This amendment has no impact on the description and drawings .
PCT/US1996/015158 1995-10-06 1996-09-27 Solid lithium-ion electrolyte WO1997013178A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU72423/96A AU699634B2 (en) 1995-10-06 1996-09-27 Solid lithium-ion electrolyte
EP96933848A EP0797788A4 (en) 1995-10-06 1996-09-27 Solid lithium-ion electrolyte
JP51429297A JP2002504259A (en) 1995-10-06 1996-09-27 Solid lithium ion electrolyte

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/540,046 1995-10-06
US08/540,046 US5716736A (en) 1995-10-06 1995-10-06 Solid lithium-ion electrolyte

Publications (2)

Publication Number Publication Date
WO1997013178A1 WO1997013178A1 (en) 1997-04-10
WO1997013178B1 true WO1997013178B1 (en) 1997-06-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/015158 WO1997013178A1 (en) 1995-10-06 1996-09-27 Solid lithium-ion electrolyte

Country Status (6)

Country Link
US (2) US5716736A (en)
EP (1) EP0797788A4 (en)
JP (1) JP2002504259A (en)
AU (1) AU699634B2 (en)
CA (1) CA2206817A1 (en)
WO (1) WO1997013178A1 (en)

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