US5674645A
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Lithium manganese oxy-fluorides for li-ion rechargeable battery electrodes
Assignee: Valence Technology Inc
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Filing: 1996-09-06
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Granted: 1997-10-07
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Expires: 2016-09-06
Abstract
Abstract The cycling stability and capacity of li-ion rechargeable batteries are improved by the use of lithium manganese oxy-fluoride electrode component intercalation materials having the general formula, Li 1+x M y Mn 2-x-y O 4-z F z , where M is a transition metal, e.g., Co, Cr, or Fe, and x≦0.4, y≦0.3, and 0.05≦z≦1.0.
Inventors
- 👤 Glenn G. Amatucci
- 👤 Jean-Marie Tarascon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:15
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/50; H01M4/505; C; C01; C01G; C01G45/00; C01G45/12; C01G45/1221; C01G45/1242; C01G49/00; C01G49/009; C01G51/00; C01G51/40; C01G51/42; C01G51/44; C01G51/54; H01M4/58; H01M4/582; C01P; C01P2002/00; C01P2002/50; C01P2002/52; C01P2002/54; C01P2002/70; C01P2002/72; C01P2002/77; C01P2006/00; C01P2006/40; H01M2004/026; H01M2004/028; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
31 words
A lithium manganese oxy-fluoride compound having the general formula, Li 1+x M y Mn 2-x-y O 4-z F z , where M is a transition metal and x≦0.4, y≦0.3, and 0.05≦z≦1.0.
Claim 2
Dependent Claim
31 words
A lithium manganese oxy-fluoride compound having the general formula, Li 1+x M y Mn 2-x-y O 4-z F z , where M is a transition metal and x≦0.4, y≦0.3, and 0.05≦z≦1.0.
Claim 3
Dependent Claim
13 words
A compound according to claim 1 where M is Co, Cr, or Fe.
Claim 4
Dependent Claim
11 words
A compound according to claim 2 where x≦0.2, y=0, and 0.05≦z≦0.4.
Claim 5
Dependent Claim
11 words
A compound according to claim 2 where 0.1≦x≦0.2, y=0, and 0.05≦z≦0.4.
Claim 6
Dependent Claim
11 words
A compound according to claim 2 where 0.1≦x≦0.2, y=0, and 0.05≦z≦0.2.
Claim 7
Dependent Claim
11 words
A compound according to claim 2 where 0.05≦x≦0.2, y≦0.3, and 0.05≦z≦0.2.
Claim 8
Dependent Claim
52 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 M y Mn 2-x-y O 4-z F z , where M is a transition metal and x≦0.4, y≦0.3, and 0.05≦z≦1.0.
Claim 9
Dependent Claim
52 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 M y Mn 2-x-y O 4-z F z , where M is a transition metal and x≦0.4, y≦0.3, and 0.05≦z≦1.0.
Claim 10
Dependent Claim
15 words
A rechargeable battery cell according to claim 7 where M is Co, Cr, or Fe.
Claim 11
Dependent Claim
13 words
A rechargeable battery cell according to claim 8 where x≦0.2, y=0, and 0.05≦z≦0.4.
Claim 12
Dependent Claim
13 words
A rechargeable battery cell according to claim 8 where 0.1≦x≦0.2, y=0, and 0.05≦z≦0.4.
Claim 13
Dependent Claim
13 words
A rechargeable battery cell according to claim 8 where 0.1≦x≦0.2, y=0, and 0.05≦z≦0.2.
Claim 14
Dependent Claim
13 words
A rechargeable battery cell according to claim 8 where 0.05≦x≦0.2, y≦0.3, and 0.05≦z≦0.2.
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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) | 2000-10-06 | 2001-04-07 | 2001-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-06 | 2005-04-07 | 2005-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-06 | 2009-04-07 | 2009-10-07 | $7700.00 | Window Closed / Lapsed |