Cornell University

Huazhong University of Science and Technology

Wuhan University

Héctor D Abruña

Deli Wang

Francis J DiSalvo

Weidong Zhou

Yingchao Yu

Yao Yang

Li Hong Xiao

Ulrich B Wiesner

Ryo Wakabayashi

Joerg G Werner

Fu-Sheng Ke

Marc Murphy

R Bruce Van Dover

Gabriel G Rodriguez-Calero

Lin Zhuang

Brett P Fors

David Muller

Hongfang Liu

Shuang Qin

Na Zhang

Liu Hongfang

Qin Shuang

Jie Gao

Hanging Peng

Michael A Lowe

Brian Peterson

Luxi Shen

Cara Gannett

Xiao-Chen Liu

Huolin Xin

Ryo H Wakabayashi

Provided are phenazine copolymers and methods of making and using phenazine copolymers. The phenazine copolymers may be made from one or more phenazine precursors and one or more co-monomer precursors, one or more phenazine precursors and one or more cross-linking precursors, or one or more phenazine precursors and both one or more cross-linking precursors and one or more co-monomer precursors. The phenazine copolymers may be used in/on cathodes. The cathodes may be used in a variety of devices, such as, for example, batteries or supercapacitors.

Phenazine copolymers and uses thereof

A titanium disulfide-sulfur (TiS&#x2014;S) composite particle contains a titanium disulfide (TiS) substrate having solid elemental sulfur (S) disposed directly on a surface of the TiS. The TiSsubstrate has a layered crystalline hexagonal structure of space group P-3 ml and includes at least 100 distinct layers. The TiSand S are present in the composite in a weight ratio (TiS:S) of 20:80 to 50:50. Cathodes and batteries containing the composite particle, as well as related methods, are also disclosed.

Titanium disulfide-sulfur composites

Provided is an apparatus containing, as a cathode catalyst, a metal oxide/carbon catalyst composition. The metal oxide/carbon catalyst composition includes 40 to 95 wt % porous Mn&#x2014;Co spinel oxide nanoparticles of the formula MnCoO. The nanoparticles have an octahedral morphology, an average particle size of 5-100 nm, and average pore sizes of 1-5 nm (where x is the atomic fraction of manganese and 3-x is the atomic fraction of cobalt). The metal oxide nanoparticles are supported on a carbon substrate that contains at least 96 atomic % carbon.

Apparatus comprising manganese-cobalt spinel oxide/carbon catalyst

Provided are porous FeO/sulfur composites. The composites are composed of porous FeOnanoparticles and sulfur, where the sulfur loading is 70-85% by weight based on the total weight of the composite. Also provided are batteries having cathodes containing porous FEOcomposites of the present disclosure.

Porous FeO/S composites for Li/S batteries

Embodiments provide a nanoparticle and a method for preparing the nanoparticle, as well as a membrane that includes the nanoparticle and a fuel cell that includes the membrane. The method comprises a thermal treatment method that provides from a nanoparticle comprising a structurally disordered material the nanoparticle comprising: (1) a structurally ordered core comprising a first material; and (2) a shell surrounding and further structurally aligned with the structurally ordered core and comprising a second material different from the first material. Particularly desirable is a nanoparticle comprising a PtCo@Pt/C structurally ordered core-shell composition supported upon a carbon support.

Structurally ordered nanoparticles, methods and applications

A method for preparing a material composition comprising a hollow transition metal oxide nanoparticle supported upon a carbon material support includes a solution impregnation process step, followed by a thermal reduction process step and finally a thermal oxidation process step. The material composition, an electrode and an electrical component such as but not limited to a battery are all predicated at least in-part upon the material composition prepared in accord with the foregoing method. The foregoing material composition, electrode, battery and method may ultimately provide a LIB with enhanced performance.

Carbon material supported hollow metal oxide nanoparticles, methods and applications

A metal oxide compound of formula (I):MnMRuO&#x2003;&#x2003;(I)is a single phase rutile-type structure, where M is Co, Ni, or Fe, or a combination thereof, x&#x3e;0, y&#x2265;0, and 0.02&#x2264;(x+y)&#x2264;0.30. Related electro-catalysts, devices, and processes are also provided.

Mixed metal oxide compounds and electrocatalytic compositions, devices and processes using the same

A solid-state three-dimensional battery assembly includes a solid bicontinuous monolithic carbon anode, a solid electrolyte layer, and a solid cathode. The solid monolithic carbon anode has an ordered three-dimensionally continuous network nanostructure, a length of at least 100 nm, and an average thickness of 3 to 90 nm. The ordered three-dimensionally continuous network nanostructure of the anode defines a plurality of pores having an average diameter of 5 to 100 nm. The solid electrolyte layer is disposed directly on the anode, has an average thickness of 3 to 90 nm, and fills a portion of the pores defined by the ordered three-dimensionally continuous network nanostructure of the anode. The solid cathode is disposed directly on the electrolyte layer, has an average thickness of 3 to 90 nm, and also fills a portion of the pores defined by the ordered three-dimensionally continuous network nanostructure of the anode. Related devices and methods are also provided.

Solid-state three-dimensional battery assembly

Manganese oxide nanoparticles having a chemical composition that includes MnO, a sponge like morphology and a particle size from about 65 to about 95 nanometers may be formed by calcining a manganese hydroxide material at a temperature from about 200 to about 400 degrees centigrade for a time period from about 1 to about 20 hours in an oxygen containing environment. The particular manganese oxide nanoparticles with the foregoing physical features may be used within a battery component, and in particular an anode within a lithium battery to provide enhanced performance.

Manganese oxide nanoparticles, methods and applications

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Ithaca, NY, United States of America

Héctor D Abruña