Method for the production of MSnx nanoparticles as anode materials for a rechargeable battery
AssigneeBelenos Clean Power Holding AG
InventorsMaksym Kovalenko, Marc Walter
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Abstract
A method for the production of MSnx nanoparticles, wherein M is an element selected from the group consisting of Co, Mn, Fe, Ni, Cu, In, Al, Ge, Pb, Bi, Ga, and 0<x≤10, the method including synthesizing Sn nanoparticles by reducing a tin salt with a solution of a hydride in an anhydrous polar solvent, separating the solid Sn nanoparticles formed from the solution, and washing the Sn nanoparticles, synthesizing M nanoparticles by reducing a metal salt with a solution of a hydride in an anhydrous polar solvent, separating the solid M nanoparticles formed from the solution, and washing the M nanoparticles, mechanical mixing the Sn nanoparticles and the M nanoparticles to convert them into MSnx nanoparticles.
Claims33
A method for producing MSnx nanoparticles, wherein:
- M is an element selected from the group consisting of Co, Mn, Fe, Ni, Cu, In, Al, Ge, Pb, Bi, Ga;
- 0<x≤10;
- and
- the MSnx nanoparticles are amorphous nanoparticles,
- the method comprising:
- separately synthesizing Sn nanoparticles and M nanoparticles by, in either order:
- synthesizing the Sn nanoparticles by reducing a tin salt with a solution of a first hydride in a first anhydrous polar solvent, separating solid Sn nanoparticles formed from the solution, and washing the Sn nanoparticles, and
- synthesizing the M nanoparticles by reducing a metal salt with a solution of a second hydride in a second anhydrous polar solvent, separating solid M nanoparticles formed from the solution, and washing the M nanoparticles;
- and then
- mechanically mixing the Sn nanoparticles and the M nanoparticles to obtain the amorphous MSnx nanoparticles.
Dependencies are inferred from the claim text.