Patent ID: 8420264

Claim:
A method for preparing an electrode for a lithium ion cell, wherein the method comprises the following steps: a) providing lithium metal oxide particles with a specific surface area and particle size; b) pulverizing the lithium metal oxide particles with a vortex mill to provide pulverized particles with a specific surface area and particle size, wherein the specific surface area of the pulverized particles is greater than the specific surface area of the lithium metal oxide particles and the particle size of the pulverized particles is less than the particle size of the lithium metal oxide particles, and wherein the pulverizing does not comprise the use of shearing, crushing, grinding, or impacting particles with a non-particle surface; c) forming a slurry comprising the pulverized particles and a solvent; d) spreading the slurry onto a substrate to form a spread slurry; and e) removing the solvent from the spread slurry thereby providing the electrode.