COMPOSITE MATERIALS CONTAINING METALLIZED CARBON NANOTUBES AND NANOFIBERS
First Claim
1. A high surface area electrode configured for use in an electrochemical energy storage device, comprising:
- a host substrate;
a nanofilament layer comprising graphitic nanofilaments formed on a surface of the host substrate;
an initiation-adhesion layer disposed over the nanofilament layer; and
a metallic layer disposed on the initiation-adhesion layer.
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Accused Products
Abstract
A method and apparatus are provided for the cost effective formation of a composite material which includes metallized carbon nanotubes and/or nanofibers that can be used to form portions of an energy storage device, such as a lithium ion battery. In one embodiment, carbon nanotubes are formed on a host substrate using a catalytic chemical vapor deposition process. An initiation-adhesion layer is formed over the carbon nanotubes and a metallic layer is then deposited on the initiation-adhesion layer and each layer is formed using a wet deposition process. In one embodiment, portions of the host substrate are used to form an electrochemical storage device that may be integrated with other formed electrochemical storage devices to create an interconnected battery array. The battery array may be formed as a woven sheet, panel, or other flexible structure depending upon the type of host substrate material. In one case, the host substrate material may be a flexible fibrous material that has multiple layers formed thereon to form a fiber battery, such as a lithium ion battery.
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Citations
25 Claims
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1. A high surface area electrode configured for use in an electrochemical energy storage device, comprising:
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a host substrate; a nanofilament layer comprising graphitic nanofilaments formed on a surface of the host substrate; an initiation-adhesion layer disposed over the nanofilament layer; and a metallic layer disposed on the initiation-adhesion layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of forming an electrode used in an electrochemical energy storage device, comprising:
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forming a nanofilament layer comprising graphitic nanofilaments on a surface of a host substrate, wherein said layer is formed using chemical vapor deposition (CVD); forming an initiation-adhesion layer over the nanofilament layer; and depositing a metallic layer on the initiation-adhesion layer. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for forming an electrode, comprising:
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a first primary support and a second primary support each coupled to a portion of a host substrate; a nanofilament growth apparatus adapted for growing graphitic nanofilaments on a portion of the host substrate disposed between the first primary support and the second primary support; one or more processing stations adapted for metallizing the graphitic nanofilaments formed on the host substrate; and an actuator coupled to the first primary support to position a portion of the host substrate in the nanofilament growth apparatus and the one or more processing stations. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification