High energy materials for a battery and methods for making and use
View Patent ↗A composition for forming an electrode. The composition includes a metal fluoride, such as copper fluoride, and a matrix material. The matrix material adds capacity to the electrode. The copper fluoride compound is characterized by a first voltage range in which the copper fluoride compound is electrochemically active and the matrix material characterized by a second voltage range in which the matrix material is electrochemically active and substantially stable. A method for forming the composition is included.
1. A composition for forming a cathode for use in a battery, comprising:
a copper fluoride compound characterized by a first voltage range in which the copper fluoride compound is electrochemically active; and
a matrix material characterized by a second voltage range in which the matrix material is electrochemically active; and wherein the second voltage range overlaps at least 35% of the first voltage range to a maximum of 100% of the first voltage range.
2. The composition of claim 1 wherein the second voltage range overlaps at least 40% of the first voltage range.
3. The composition of claim 1 wherein the second voltage range overlaps at least 45% of the first voltage range.
4. The composition of claim 1 wherein the second voltage range overlaps at least 50% of the first voltage range.
5. The composition of claim 1 wherein the matrix material comprises lithium.
6. The composition of claim 1 wherein the matrix material comprises LiFePO 4 .
7. The composition of claim 1 wherein the matrix material comprises an NIVIC material.
8. The composition of claim 1 wherein the matrix material adds specific capacity to the composition as compared to a composition without the matrix material.
9. A cathode formed using the compositions of claim 1 .
10. A method of making a composition for use in a cathode for a battery, comprising:
mixing a copper fluoride compound characterized by a first voltage range in which the copper fluoride compound is electrochemically active with a matrix material characterized by a second voltage range in which the matrix material is electrochemically active, wherein the second voltage range overlaps at least 35% of the first voltage range to a maximum of 100% of the first voltage range.
11. The method of claim 10 wherein the second voltage range overlaps at least 40% of the first voltage range.
12. The method of claim 10 wherein the second voltage range overlaps at least 45% of the first voltage range.
13. The method of claim 10 wherein the second voltage range overlaps at least 50% of the first voltage range.
14. The method of claim 10 wherein the matrix material comprises lithium.
15. The method of claim 10 wherein the matrix material comprises LiFePO 4 .
16. The method of claim 10 wherein the matrix material comprises an NMC material.