SECONDARY ELECTROCHEMICAL CELL WITH HIGH RATE CAPABILITY
First Claim
Patent Images
1. A battery, comprising:
- a first electrode comprising a first electrode active material represented by the general formula;
AaMbLcZd,wherein;
A. A is selected from the group consisting of elements from Group I of the Periodic Table, and mixtures thereof, and 0≦
a≦
9;
B. M includes at least one redox active element, and 0<
b≦
4;
C. L is selected from the group consisting of X′
[O4-x,Y′
x], X′
[O4-y,Y′
2y], X″
S4, [Xz′
″
,X′
1-z]O4, and mixtures thereof, wherein;
i) X′ and
X′
″
are each independently selected from the group consisting of P, As, Sb, Si, Ge, V, S, and mixtures thereof;
ii) X″
is selected from the group consisting of P, As, Sb, Si, Ge, V, and mixtures thereof;
iii) Y′
is selected from the group consisting of halogens selected from Group 17 of the Periodic Table, S, N, and mixtures thereof;
iv) 0≦
x≦
3, 0≦
y≦
2, 0≦
z≦
1 and 0<
z≦
3; and
v) Z is selected from the group consisting of a hydroxyl (OH), a halogen selected from Group 17 of the Periodic Table, and mixtures thereof, and 0≦
e≦
4; and
vi) wherein A, M, L, Z, a, b, c and d are selected so as to maintain electroneutrality of the first electrode active material in its nascent state;
a second counter-electrode comprising a counter-electrode active material represented by the general formula;
EfTigDhOi,wherein;
(i) E is selected from the group consisting of elements from Group I of the Periodic Table, and mixtures thereof, and 0<
f<
12;
(ii) 0<
g≦
6;
(iii) D is selected from the group consisting of Al, Zr, Mg, Ca, Zn, Cd, Fe, Mn, Ni, Co, and mixtures thereof, and 0≦
h≦
2; and
(iv) 2≦
i≦
12; and
(v) wherein E, D, f, g, h and i are selected so as to maintain electroneutrality of the second counter-electrode active material in its nascent state; and
an electrolyte in ion-transfer communication with the first electrode and the second electrode.
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Abstract
The invention provides an electrochemical cell which includes a first electrode having a electrode active material, a second electrode which is a counter electrode to the first electrode, and an electrolyte. The negative electrode active material is represented by the general formula EfTigDhOi.
-
Citations
20 Claims
-
1. A battery, comprising:
-
a first electrode comprising a first electrode active material represented by the general formula;
AaMbLcZd,wherein; A. A is selected from the group consisting of elements from Group I of the Periodic Table, and mixtures thereof, and 0≦
a≦
9;B. M includes at least one redox active element, and 0<
b≦
4;C. L is selected from the group consisting of X′
[O4-x,Y′
x], X′
[O4-y,Y′
2y], X″
S4, [Xz′
″
,X′
1-z]O4, and mixtures thereof, wherein;i) X′ and
X′
″
are each independently selected from the group consisting of P, As, Sb, Si, Ge, V, S, and mixtures thereof;ii) X″
is selected from the group consisting of P, As, Sb, Si, Ge, V, and mixtures thereof;iii) Y′
is selected from the group consisting of halogens selected from Group 17 of the Periodic Table, S, N, and mixtures thereof;iv) 0≦
x≦
3, 0≦
y≦
2, 0≦
z≦
1 and 0<
z≦
3; andv) Z is selected from the group consisting of a hydroxyl (OH), a halogen selected from Group 17 of the Periodic Table, and mixtures thereof, and 0≦
e≦
4; andvi) wherein A, M, L, Z, a, b, c and d are selected so as to maintain electroneutrality of the first electrode active material in its nascent state; a second counter-electrode comprising a counter-electrode active material represented by the general formula;
EfTigDhOi,wherein; (i) E is selected from the group consisting of elements from Group I of the Periodic Table, and mixtures thereof, and 0<
f<
12;(ii) 0<
g≦
6;(iii) D is selected from the group consisting of Al, Zr, Mg, Ca, Zn, Cd, Fe, Mn, Ni, Co, and mixtures thereof, and 0≦
h≦
2; and(iv) 2≦
i≦
12; and(v) wherein E, D, f, g, h and i are selected so as to maintain electroneutrality of the second counter-electrode active material in its nascent state; and an electrolyte in ion-transfer communication with the first electrode and the second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification