Method for producing fibers and foams containing silicon carbide, and use thereof
AssigneePSC Technologies, Inc.
InventorsSiegmund GREULICH-WEBER, Rüdiger SCHLEICHER-TAPPESER
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Abstract
The present invention relates to a method for producing silicon carbide-containing fibers or silicon carbide-containing nano- and/or micro-structured foams, and to the use thereof, in particular as anode materials for lithium-ion storage batteries.
Claims39
Method for producing silicon carbide-containing fibers or silicon carbide-containing nano- and/or microstructured foams,
- characterized in that
- (a) introducing precursors containing at least one carbon source and at least one silicon source a first temperature zone, of a reactor heated to temperatures in the range from 1,300 to 2,100° C. so that the precursors are decomposed, and
- (b) depositing in a second temperature zone;
- of the reactor, silicon carbide-containing fibers and/or silicon carbide-containing nano- or microstructured foams on a substrate.
An apparatus for producing silicon carbide-containing materials selected from the group consisting of fibers, nano-foams, and microstructured foams,
- wherein the apparatus comprises
- (a) at least one reactor comprising
- (i) a first temperature zone;
- and
- (ii) a second temperature zone,
- wherein the temperatures in the first and second temperature zones, are controllable independently of one another by a control unit,
- (b) at least one introduction device, for introducing, gaseous and/or liquid precursors, containing at least one carbon source and at least one silicon source, into the first temperature zone of the reactor;
- and
- (c) at least one substrate in the second temperature zone of the reactor for depositing the silicon carbide-containing fibers and/or the silicon carbide-containing nano- or microstructured foams.
Method for applying a nano- or microstructured silicon carbide foam to a sheet material for producing an electrode,
- characterized in that
- (a) introducing precursors containing at least one carbon source and at least one silicon source into a first temperature zone of a reactor heated to temperatures sufficient to decompose the precursors, and
- (b) depositing, in particular in a second temperature zone, of the reactor, a nano- or microstructured silicon carbide foam on a sheet material.
Apparatus for applying a nano- and/or microstructured silicon carbide foam to a sheet material for producing an electrode,
- wherein the apparatus comprises
- (a) at least one reactor further comprising
- (i) a first temperature zone;
- and
- (ii) a second temperature zone,
- wherein the temperatures in the first and second temperature zones are controllable independently of one another by a control unit,
- (b) at least one introduction device for introducing precursors selected from the group consisting of a solid precursor, a liquid precursor, and a gas precursor, the precursors containing at least one carbon source and at least one silicon source and, optionally, doping reagents, into the first temperature zone of the reactor and
- (c) at least one transport device for moving a sheet material through the reactor including the second temperature zone of the reactor, and/or a tempering device for tempering the sheet material.
Dependencies are inferred from the claim text.