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Porous three dimensional copper, tin, copper-tin, copper-tin-cobalt, and copper-tin-cobalt-titanium electrodes for batteries and ultra capacitors

  • US 9,567,683 B2
  • Filed: 06/01/2012
  • Issued: 02/14/2017
  • Est. Priority Date: 02/04/2009
  • Status: Expired due to Fees
First Claim
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1. A battery, comprising:

  • a flexible conductive current collector having a smooth surface;

    a porous electrode comprising;

    a columnar metal layer formed on the smooth surface of the flexible conductive current collector;

    a three-dimensional metal macro-porous dendritic structure formed over the columnar metal layer, wherein the three-dimensional metal macro-porous dendritic structure has pores of about 100 microns or less; and

    a tin layer formed on the three-dimensional metal macro-porous dendritic structure; and

    a separator formed over the tin layer formed on the three-dimensional metal macro-porous dendritic structure, wherein the three-dimensional metal macro-porous dendritic structure comprises copper.

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