Method of fabricating fibres composed of silicon or a silicon-based material and their use in lithium rechargeable batteries
First Claim
Patent Images
1. A method of creating a cell electrode for an electrochemical cell, the method comprising:
- etching a silicon or silicon-based substrate to form fibres;
detaching the fibres from the substrate;
depositing a slurry containing a plurality of the fibres to form a layer of fibres;
wherein at least some of the fibres cross over to provide intersections.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of fabricating fibres of silicon or silicon-based material comprises the steps of etching pillars on a substrate and detaching them. A battery anode can then be created by using the fibres as the active material in a composite anode electrode.
-
Citations
20 Claims
-
1. A method of creating a cell electrode for an electrochemical cell, the method comprising:
-
etching a silicon or silicon-based substrate to form fibres; detaching the fibres from the substrate; depositing a slurry containing a plurality of the fibres to form a layer of fibres; wherein at least some of the fibres cross over to provide intersections.
-
-
2. A method of creating a cell electrode for a battery, the method comprising:
-
etching a silicon or silicon-based substrate, comprising n-type or p-type silicon, to form fibres; detaching the fibres from the substrate; and forming a layer of fibres in which the fibres cross over each other to provide multiple intersections. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A method of fabricating an electrode for an electrochemical cell, the method comprising the steps of:
-
etching a silicon substrate or a silicon-based substrate to make pillars; detaching pillars from the substrate to give electrode fibres of silicon or a silicon-based material; and forming an electrically interconnected mass of electrode fibres, wherein the electrode fibres form an electrochemically active material of the electrode, and the fibres comprise n-type or p-type silicon. - View Dependent Claims (19, 20)
-
Specification