University of Illinois

Xindi Yu

Paul Vannest Braun

Hui Gang Zhang

William P King

Zhenting Dai

A method of making a three-dimensional porous device entails providing a substrate having a conductive pattern on a surface thereof, and depositing a colloidal solution comprising a plurality of microparticles onto the surface, where the microparticles assemble into a lattice structure. Interstices of the lattice structure are infiltrated with a conductive material, which propagates through the interstices in a direction away from the substrate to reach a predetermined thickness. The conductive material spans an area of the surface overlaid by the conductive pattern. The microparticles are removed to form voids in the conductive material, thereby forming a conductive porous structure having the predetermined thickness and a lateral size and shape defined by the conductive pattern.

Three-dimensional (3D) porous device and method of making a 3D porous device

A porous battery electrode for a rechargeable battery includes a monolithic porous structure having a porosity in the range of from about 74% to about 99% and comprising a conductive material. An active material layer is deposited on the monolithic porous structure. The pores of the monolithic porous structure have a size in the range of from about 0.2 micron to about 10 microns. A method of making the porous battery electrode is also described.

Porous battery electrode for a rechargeable battery and method of making the electrode

A method of making a monolithic porous structure, comprises electrodepositing a material on a template; removing the template from the material to form a monolithic porous structure comprising the material; and electropolishing the monolithic porous structure.

Growing community of inventors

Urbana, IL, United States of America

Xindi Yu