US2006091363A1PendingUtilityA1
Oligo phosphate-based electrode active materials and methods of making same
Est. expiryApr 8, 2023(expired)· nominal 20-yr term from priority
C01B 15/043C01B 15/06C01B 15/14C01B 15/16H01M 4/5825Y02E60/10H01B 1/08
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Claims
Abstract
The invention provides an electrochemical cell which includes a first electrode and a second electrode which is a counter electrode to said first electrode, and an electrolyte material interposed there between. The first electrode includes an active material having an alkali metal-containing oligo phosphate-based electrode active material.
Claims
exact text as granted — not AI-modified1 . A compound represented by the general nominal formula:
A a M b X c O (3c+1) , wherein: (a) A is at least one alkali metal, and 0<a≦6; (b) M is M′ l M″ m , wherein M′ is at least one redox active element, M″ is at least one non-redox active element, and l+m=b, and 1≦b≦4; (c) X is selected from the group consisting of P, As, Sb, Si, Ge, V, S, and mixtures thereof; and (d) 2≦c≦5; wherein A, M, X, a, b and c are selected so as to maintain electroneutrality of the compound.
2 . The compound of claim 1 , wherein A is selected from the group consisting of Li, Na, K, and mixtures thereof.
3 . The compound of claim 2 , wherein A is Li.
4 . The compound of claim 1 , wherein M′ is selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Si, Sn, Pb, and mixtures thereof.
5 . The compound of claim 4 , wherein M″ is selected from the group consisting of Be, Mg, Ca, Sr, Ba, Zn, Cd, and mixtures thereof.
6 . The compound of claim 4 , wherein M″ is selected from the group consisting of Sc, Y, La, B, Al, Ga, In, and mixtures thereof.
7 . The compound of claim 1 , wherein M″ is selected from the group consisting of Be, Mg, Ca, Sr, Ba, Zn, Cd, and mixtures thereof.
8 . The compound of claim 1 , wherein M″ is selected from the group consisting of Sc, Y, La, B, Al, Ga, In, and mixtures thereof.
9 . The compound of claim 1 , wherein X is P.
10 . The compound of claim 9 , wherein A is Li.
11 . The compound of claim 10 , wherein M′ is Fe.
12 . A battery, comprising:
a first electrode comprising a compound represented by the general nominal formula: A a M b X c O (3c+1) , wherein: (a) A is at least one alkali metal, and 0<a≦6; (b) M is M′ l M″ m , wherein M′ is at least one redox active element, M″ is at least one non-redox active element, and l+m=b, and 1≦b≦4; (c) X is selected from the group consisting of P, As, Sb, Si, Ge, V, S, and mixtures thereof; and (d) 2≦c≦5, wherein A, M, X, a, b and c are selected so as to maintain electroneutrality of the compound a second counter electrode; and an electrolyte in ion-transfer relationship with the first and second electrode.
13 . The battery of claim 12 , wherein A is selected from the group consisting of Li, Na, K, and mixtures thereof.
14 . The battery of claim 13 , wherein A is Li.
15 . The battery of claim 12 , wherein M′ is selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Si, Sn, Pb, and mixtures thereof.
16 . The battery of claim 15 , wherein M″ is selected from the group consisting of Be, Mg, Ca, Sr, Ba, Zn, Cd, and mixtures thereof.
17 . The battery of claim 15 , wherein M″ is selected from the group consisting of Sc, Y, La, B, Al, Ga, In, and mixtures thereof.
18 . The battery of claim 12 , wherein M″ is selected from the group consisting of Be, Mg, Ca, Sr, Ba, Zn, Cd, and mixtures thereof.
19 . The battery of claim 12 , wherein M″ is selected from the group consisting of Sc, Y, La, B, Al, Ga, In, and mixtures thereof.
20 . The battery of claim 12 , wherein X is P.
21 . The battery of claim 20 , wherein A is Li.
22 . The battery of claim 12 , wherein M′ is Fe.
23 . The battery of claim 12 , wherein M′ is V.Join the waitlist — get patent alerts
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