Anode Active Material for Lithium-Ion Batteries
AssigneeFord Global Technologies, LLC
InventorKevin James Rhodes
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Abstract
In at least one embodiment, a rechargeable battery is provided comprising an anode having an active material including MSb2O4 having a purity level of greater than 93 percent by weight, wherein M is a metal. The metal may have an oxidation state of 2+ and may include transition metals and/or alkali-earth metals. The anode active material may be synthesized using metal acetates or metal oxides. The synthesis may include heating at a first temperature to remove oxygen and water and reacting at a second temperature to form the MSb2O4 structure, which may be a spinel crystal structure.
Claims20
A method of forming an anode active material comprising:
- mixing a metal oxide (MO), M having an oxidation state of 2+, and an antimony oxide;
- heating the mixture to a first temperature to remove oxygen and water from the mixture;
- and
- reacting the mixture at a second temperature to form MSb2O4.
A method of forming an anode active material comprising:
- mixing a metal (M) acetate or acetate hydrate, M having an oxidation state of 2+ and being one of zinc (Zn), iron (Fe), manganese (Mg) and magnesium (Mn), and an antimony oxide;
- heating the mixture to a first temperature to remove oxygen and water from the mixture;
- and
- reacting the mixture at a second temperature to form MSb2O4.
Dependencies are inferred from the claim text.