Patent ID: 9166228
Filing Date: 2015-10-20
Classification: B82Y,C01B,C01P,H01M,Y02E

Abstract:
1. A method of forming a high-capacity, high-rate lithium ion battery cathode material, comprising: A) providing a plurality of synthesized electrochemically active plate-shaped nanoparticles; B) adding a plurality of appropriately sized diluent particles to the electrochemically active plate-shaped nanoparticles to form a mixed suspension; C) removing any liquid from the suspension to form a composite material, thereby introducing steric defects between the electrochemically active plate-shaped nanoparticles; and D) processing the composite material to form a high-capacity, high-rate lithium ion battery cathode material, wherein the processing step comprises: curing the composite material, and densifying the composite material, and the densifying step comprises further introducing steric defects between the electrochemically active plate-shaped nanoparticles by passing the composite material through a roll press, said composite material having column heights limited to twice the thickness of the electrochemically active plate-shaped nanoparticles in the [010] direction.