Honda Motor Co., Ltd.

California Institute of Technology

Nam Hawn Chou

Christopher J Brooks

Simon Christopher Jones

Qingmin Xu

Ryan K McKenney

Isabelle M Darolles

Ryan Mckenney

Hongjin Tan

Kaoru Omichi

Avetik R Harutyunyan

Thomas F Miller, Iii

Robert H Grubbs

Christopher John Brooks

Stephen A Munoz

William Wolf

Victoria K Davis

Rahul S Rao

Jeongmin Kim

Keith Billings

A method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes having the same are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.

Fluoride-ion electrochemical cell having electrochemically active structure with fluoride-containing shell

The present disclosure relates to fluoride ion batteries and structures of metal based electrode materials for various fluoride ion batteries. The structures of the metal based electrode materials comprise one or more shells or interfaces, enabling the electrodes to operate at room temperature with a liquid electrolyte.

Liquid-type room-temperature fluoride ion batteries

The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. The fluoride-conducting encapsulant may comprise one or more metals. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.

Barium-doped composite electrode materials for fluoride-ion electrochemical cells

The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.

Composite electrode materials for fluoride-ion electrochemical cells

A fluoride shuttle (F-shuttle) battery and nanostructures of copper based cathode materials in the fluoride shuttle battery. The F-shuttle batteries include a liquid electrolyte, which allows the F-shuttle batteries to operate under room temperature. The minimum thickness of copper layer within the copper nanostructures is no more than 20 nm. The thickness of copper layer within the copper nanostructures is controlled and reduced to ensure the energy densities of F-shuttle batteries.

Nanostructural designs for electrode materials of fluoride ion batteries

An electrode material which may be used in an electrochemical cell used to convert carbon dioxide into useful products, such as synthetic fuel. The electrode material may comprise nano-sized core-shell catalyst (i.e., core-shell nanoparticles, or CSNs) having a catalytic core component encompassed by one or more outer shells, wherein at least one of the outer shells has a mesoporous structure. Electrochemical cells, electrochemical cell electrodes, and methods of making CSNs are also provided.

Method for producing core shell nanoparticles

The present disclosure is directed to methods for producing a single-walled carbon nanotube in a chemical vapor deposition (CVD) reactor. The methods comprise contacting liquid catalyst droplets and a carbon source in the reactor, and forming a single walled carbon nanotube at the surface of the liquid catalyst droplets.

Method for continuous and controllable production of single walled carbon nanotubes

Multifunctional core@shell nanoparticles (CSNs) useful in electrochemical cells, particularly for use as an electrocatalyst material. The multifunctional CSNs comprise a catalytic core component encompassed by one or more outer shells. Also included are electrochemical cell electrodes and electrochemical cells that electrochemically convert carbon dioxide to, for example, useful fuels (e.g., synthetic fuels) or other products, and which comprise multifunctional CSNs, and methods for making the same.

Core shell

Methods for preparing solid metal oxide nanoparticles via controlled oxidation comprising preparing a plurality of metal nanoparticles, contacting the plurality of metal nanoparticles with an aqueous agent to provide metal oxide nanoparticles having a desired particle size, and removing the resulting metal oxide nanoparticles from the aqueous agent. Aspects of the present disclosure also relate to solid metal oxide nanoparticles obtained by this method.

Method of making metal and metal oxide nanoparticles

A method for producing metal catalyst nanoparticles with a predetermined and/or narrow particle size distribution, and/or a predetermined size, wherein the method comprising a first quenching step and a second quenching step, which may, at least in part, determine the obtained metal catalyst nanoparticles' particle size distribution and/or size.

Method for producing metal catalyst nanoparticles

The present disclosure is directed to methods for producing indium nanoparticles. The methods comprise dissolving indium chloride in a solution that includes a solvent and a surfactant, adding a reducing agent to the reaction mixture to form an agglomerate of In nanoparticles, and exposing the reaction mixture to a gas including oxygen to disperse the agglomerate into a plurality of individual indium nanoparticles.

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Dublin, OH, United States of America

Nam Hawn Chou