Navitas Systems, LLC

Qingliu Wu

Pu Zhang

Michael R Wixom

Hong Wang

Provided are electrode active materials with a porous structure and including a metal, that when loaded with sulfur serve as electrochemically superior cathode active materials. The metal structures are optionally used on their own, are coated with another material, or coats another porous structure such as a porous carbon structure that allows for excellent retention of both sulfur and polysulfides, are conductive themselves, and show long term stability and excellent cycle life.

Cathode and cathode materials for lithium sulfur batteries

Provided are materials that may be used in or as a separator in an electrochemical cell such as a lithium sulfur battery. The separator includes a material capable of absorbing and desorbing a polysulfide. The inclusion of the materials in a separator provide for reduced sulfur loss from a cathode during cycling thereby improving cycle life.

Separator for lithium sulfur batteries

Provided are electrode active materials that include a metal oxide or oxynitride with a porous structure that when loaded with sulfur serve as electrochemically superior cathode active materials. The metal nitride or metal oxynitride structures are optionally used on their own, are coated with another material, or itself coats another porous structure such as a porous carbon structure that allows for excellent retention of both sulfur and polysulfides, are conductive themselves, and show long term stability and excellent cycle life.

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Ann Arbor, MI, United States of America

Qingliu Wu