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.
Claims19
A method of forming an anode active material comprising:
- mixing a metal oxide of the formula MO with antimony oxide, where M is one of Zn, Mn, or Mg and has an oxidation state of 2+;
- 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 with an antimony oxide, where M has an oxidation state of 2+and is one of Zn, Fe, Mg, or Mn;
- 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.