Gm Global Technolgoy Operations, Inc.

Applied Sciences, Inc.

Maryam Nazri

David Joseph Burton

Max L Lake

Andrew Palmer

Gholam-Abbas Nazri

Patrick D Lake

A method of modifying the surface of carbon materials such as vapor grown carbon nanofibers is provided in which silicon is deposited on vapor grown carbon nanofibers using a chemical vapor deposition process. The resulting silicon-carbon alloy may be used as an anode in a rechargeable lithium ion battery.

Method of depositing silicon on carbon materials and forming an anode for use in lithium ion batteries

Methods of making a cathode element for an electrochemical cell. The methods comprise providing hollow carbon nanotubes and a sulfur source in a closed environment. Sulfur is deposited within an interior of the hollow carbon nanotube. The method includes cleaning an exterior surface of the carbon nanotubes and incorporating the carbon nanotubes into a cathode element. A cathodic material for a lithium-sulfur electrochemical cell is also provided. The material comprises a plurality of stacked-cone carbon nanotubes. Each nanotube defines a hollow interior and has a substantially continuous exterior surface area. Elemental sulfur is disposed within the hollow interior of each nanotube.

Encapsulated sulfur cathode for lithium ion battery

Growing community of inventors

Bloomsfield Hills, MI, United States of America

Maryam Nazri