Anode based on hydrogenated amorphous silicon carbide for application in lithium-ion batteries
AssigneeTechnische Universiteit Delft
InventorsMiroslav ZEMAN, Olindo ISABELLA, Rene Adrianus Christianus Marinus Maria VAN SWAAIJ
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Abstract
The present invention relates in a first aspect to a battery, typically a secondary cell battery which can be recharged, in a second aspect to a use of an improved anode, such as in the battery, and to a method of producing a battery or anode, the battery comprising a cathode, and in between the cathode and anode an electrolyte. The present invention provides an improved battery, such as in terms of specific capacity.
Claims16
A battery comprising
- a cathode,
- an anode,
- in between the cathode and anode an electrolyte,
- characterized in that
- the anode comprises a silicon alloy (a-SiyAx:Qz), wherein element A is selected from B, C, N, Ge, O, and combinations thereof, wherein element Q is selected from H, F, and combinations thereof, wherein the silicon alloy is porous for accommodating electrolyte ions, such as Li ions,
- wherein the silicon alloy has a porosity from 1-50%, wherein the silicon alloy is amorphous.
(canceled)
A method of producing a battery comprising a cathode, an anode, in between the cathode and anode an electrolyte, characterized in that the anode comprises a silicon alloy (a-SiyAx:Qz), wherein element A is selected from B, C, N, Ge, O, and combinations thereof, wherein element Q is selected from H, F, and combinations thereof, wherein the silicon alloy is porous for accommodating electrolyte ions, such as Li ions, wherein the silicon alloy has a porosity from 1-50%, wherein the silicon alloy is amorphous, the method comprising
- depositing an amorphous silicon alloy (a-SiyAx:Qz), wherein the silicon alloy has a porosity from 1-50%, wherein element A is selected from B, C, N, Ge, O, and combinations thereof, wherein element Q is selected from H, F, and combinations thereof on a current collector, using CVD.
Dependencies are inferred from the claim text.