Multiphase nanocomposite material and method for its manufacture
AssigneeT/J Technologies, Inc.
InventorsJohn Miller, Liya Wang
Life of this patent
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Abstract
A multiphase composite material having utility as an electrochemical electrode or catalyst includes a first active phase which is an amorphous, electrochemically active material; and a second, stabilizer phase which includes one or more of: metals, carbon, ceramics, and intermetallic compounds. The stabilizer phase is configured as a plurality of spaced apart regions having the active phase disposed therebetween. The active phase may comprise one or more of: Sn, Sb, Bi, Pb, Ag, In, Si, Ge, and Al. The stabilizer phase may include one or more of: Fe, Zr, Ti, and C. Also disclosed are electrodes and batteries which include the material as well as methods for manufacturing the material by using a mechanical alloying process.
Claims30
A multiphase, composite material comprising:
- a first, active, phase comprising an amorphous, electrochemically active material;
- and
- a second, stabilizer, phase comprising a material selected from the group consisting of:
- metals, carbon, ceramics, intermetallic compounds, and combinations thereof, said stabilizer phase being configured as a plurality of spaced-apart regions having said active phase disposed therebetween.
An electrode comprising:
- a multiphase composite material, said multiphase composite material comprising:
- a first, active, phase comprising an amorphous, electrochemically active material;
- and a second, stabilizer, phase comprising a material selected from the group consisting of:
- metals, carbon, ceramics, intermetallic compounds, and combinations thereof, said stabilizer phase being configured as a plurality of spaced apart regions having said active phase disposed therebetween.
A battery including at least one electrode comprised of a multiphase, composite material, said material comprising:
- a first, active, phase comprising an amorphous, electrochemically active material;
- and
- a second, stabilizer, phase comprising a material selected from the group consisting of metals, carbon, ceramics, intermetallic compounds, and combinations thereof, said stabilizer phase being configured as a plurality of spaced apart regions having said active phase disposed therebetween.
A method of making a multiphase composite material, said method comprising the steps of:
- providing a plurality of components, said components including the elements of which said multiphase composite material is comprised;
- and
- subjecting said plurality of components to a mechanical alloying process;
- whereby said multiphase composite material is formed.
Dependencies are inferred from the claim text.