US5759720A
Expired / Lapsed
US
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Lithium aluminum manganese oxy-fluorides for Li-ion rechargeable battery electrodes
Assignee: Valence Technology Inc
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Filing: 1997-06-04
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Granted: 1998-06-02
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Expires: 2017-06-04
Abstract
Abstract The cycling stability and capacity of Li-ion rechargeable batteries are improved, particularly in an elevated temperature range of about 55° C., by the use of lithium aluminum manganese oxy-fluoride electrode components having the general formula, Li 1+x Al y Mn 2-x-y O 4-z F z , where x≦0.4, 0.1≦y≦0.3, and 0.05≦z≦0.5.
Inventors
- 👤 Glenn G. Amatucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:53
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/50; H01M4/505; H01M4/38; H01M4/40; C; C01; C01G; C01G45/00; C01G45/12; C01G45/1221; C01G45/1242; H01M10/00; H01M10/05; H01M10/052; H01M4/58; H01M4/582; C01P; C01P2002/00; C01P2002/50; C01P2002/52; C01P2002/70; C01P2002/77; C01P2006/00; C01P2006/40; H01M2004/026; H01M2004/028; H01M4/13; H01M4/131; H01M4/1315; H01M4/405; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
25 words
A lithium aluminum manganese oxy-fluoride compound having the formula, Li 1+x Al y Mn 2-x-y O 4-z F z , where x≦0.4, 0.1≦y≦0.3, and 0.05≦z≦0.5.
Claim 2
Dependent Claim
25 words
A lithium aluminum manganese oxy-fluoride compound having the formula, Li 1+x Al y Mn 2-x-y O 4-z F z , where x≦0.4, 0.1≦y≦0.3, and 0.05≦z≦0.5.
Claim 3
Dependent Claim
11 words
A compound according to claim 1 where x≦0.2, y=0.1, and 0.2≦z≦0.4.
Claim 4
Dependent Claim
11 words
A compound according to claim 1 where x≦0.2, y=0.2, and 0.2≦z≦0.5.
Claim 5
Dependent Claim
46 words
A rechargeable battery cell comprising a positive electrode, a negative electrode, and a separator disposed therebetween characterized in that said positive electrode comprises an intercalation compound having the general formula, Li 1+x Al y Mn 2-x-y O 4-z F z , where x≦0.4, 0.1≦y≦0.3, and 0.05≦z≦0.5.
Claim 6
Dependent Claim
46 words
A rechargeable battery cell comprising a positive electrode, a negative electrode, and a separator disposed therebetween characterized in that said positive electrode comprises an intercalation compound having the general formula, Li 1+x Al y Mn 2-x-y O 4-z F z , where x≦0.4, 0.1≦y≦0.3, and 0.05≦z≦0.5.
Claim 7
Dependent Claim
13 words
A rechargeable battery cell according to claim 4 where x≦0.2, y=0.1, and 0.2≦z≦0.4.
Claim 8
Dependent Claim
13 words
A rechargeable battery cell according to claim 4 where x≦0.2, y=0.2, and 0.2≦z≦0.5.
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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) | 2001-06-01 | 2001-12-01 | 2002-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-01 | 2005-12-01 | 2006-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-01 | 2009-12-01 | 2010-06-02 | $7700.00 | Window Closed / Lapsed |