Method of fabricating a three-dimensional (3D) porous electrode architecture for a microbattery
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United States of America Patent
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Jan 31, 2017
Grant Date -
Oct 23, 2014
app pub date -
Jul 1, 2014
filing date -
Jul 29, 2011
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Abstract
A method of fabricating a 3D porous electrode architecture comprises forming a microbattery template that includes (a) a lattice structure comprising a first lattice portion separated from a second lattice portion on a substrate, and (b) a solid structure on the substrate including a separating portion between the first and second lattice portions. Interstices of the first lattice portion are infiltrated with a first conductive material and interstices of the second lattice portion are infiltrated with a second conductive material. Each of the first and second conductive materials fill the interstices to reach a predetermined thickness on the substrate. The solid structure and the lattice structure are removed from the structure, thereby forming first and second conductive scaffolds comprising a porosity defined by the lattice structure and having a lateral size and shape defined by walls of the solid structure.
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