Toyota Motor Engineering & Manufacturing North America, Inc.

Naoki Osada

John Muldoon

Claudiu Bogdan Bucur

Mike Jones

A particle having a core of elemental chalcogen elements, such as sulfur, selenium and tellurium, and a coating of at least one polymeric layer on the core. A functionalized conductive carbon material is dispersed in the core. A cathode containing the particles and a battery constructed with the cathode are also provided.

Functionalization of carbon for embedding in chalcogen particles to enhance electronic conductivity

A high density slurry comprising encapsulated sulfur particles, carbon nanofibers and activated carbon black suitable for use in forming the active material of an electrode. A method for forming the high density sulfur slurry is also provided. A cathode containing the particles and a battery constructed with the cathode as well as methods for their formation are also provided.

Formation of slurry for high loading sulfur cathodes

A hybrid particle having a core of a hybrid composite comprising at least two elements selected from the group consisting of sulfur, selenium and tellurium and a coating of at least one self-assembling polymeric layer encapsulating the core is provided. A method for preparing the hybrid particle includes mixing an aqueous solution of a polymer with an aqueous solution of a soluble precursor of at least two elements selected from the group consisting of sulfur, selenium and tellurium to form a mixture and adding an acid to the mixture to obtain the hybrid particle. A cathode having an active material of the hybrid particles and a battery containing the cathode are also provided.

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Northville, MI, United States of America

Naoki Osada