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Nanostructured electrode for energy storage device

A nanostructure, electrode technology, applied in the field of nanostructured electrodes for energy storage devices

Active Publication Date: 2018-01-02
FASTCAP SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, efficient transfer of CNTs to the capacitor's current collector has proven challenging.
Furthermore, the existing technology does not enable the transfer of CNTs in a form that will provide desired performance capabilities such as power density, energy density, maximum voltage rating, equivalent series resistance (ESR), frequency response, cycle efficiency, and stability

Method used

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Embodiment Construction

[0027] Methods and apparatus are disclosed for providing high performance electrodes for energy storage devices (e.g., supercapacitors), wherein the electrodes include an aluminum current collector having an aluminum carbide layer on at least one face and an aluminum carbide layer disposed on the aluminum carbide layer. carbon nanotubes (CNTs). Advantageously, electrodes can be fabricated from mass-produced materials such as aluminum carbide coated current collectors and CNTs. In terms of gravimetric power density (power as a function of weight), volumetric power density (power as a function of volume), gravimetric energy density (energy as a function of weight), volumetric energy density (energy as a function of volume), equivalent series resistance ( ESR), frequency response, and maximum voltage, energy storage devices (such as supercapacitors) incorporating electrodes disclosed herein exhibit, among other things, higher performance than previously available.

[0028] To pr...

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Abstract

In one embodiment, an electrode is provided. The electrode includes a current collector comprising aluminum with an aluminum carbide layer on at least one surface, on which at least one layer of carbon nanotubes (CNTs) is disposed. The electrode may comprise vertically-aligned, horizontally-aligned, or nonaligned (e.g., tangled or clustered) CNTs. The electrode may comprise compressed CNTs. The electrode may comprise single-walled, double-walled, or multiwalled CNTs. The electrode may comprise multiple layers of CNTs.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application 62 / 061,947, filed October 9, 2014, entitled "ELECTRODE FOR ENERGY STORAGE DEVICE USING ANODIZED ALUMINUM," the entire contents of which are incorporated herein by reference. [0003] Statement of Federally Funded Research [0004] This invention was made with Government support under Grant DE-AR0000035 / 0001 awarded by the US Department of Energy (ARPA-E) and DE-DE-EE0005503 / 001 awarded by the US Department of Energy (EERE). The US Government has certain rights in this invention. technical field [0005] The present invention relates to the production of electrodes comprising aggregates of carbon nanotubes for use in energy storage devices, including methods for producing such electrodes and energy storage devices using such electrodes. Background technique [0006] Carbon nanotubes (CNTs) are carbon structures that exhibit a variety of properties. Many p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/28H01G11/36H01G11/68H01G11/70H01M4/133H01M4/134B82Y99/00B82Y30/00
CPCH01G11/28H01G11/24H01G11/26H01G11/70H01G11/86H01G11/36Y02E60/10Y02E60/13C01B32/158B82Y30/00H01G11/46H01G11/48
Inventor 尼科洛·米凯莱·布兰比拉法布里齐奥·马丁尼
Owner FASTCAP SYST
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