Patents by Inventor Weidong Zhou
Weidong Zhou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200185709Abstract: Materials and methods for a coated active electrode material for use in a lithium-ion battery is provided. In one example, a coating for an active electrode material or active electrode material precursor of an electrode of a battery cell may include lithium, boron, and oxygen. In particular, the coating may include lithium tetraborate (LBO), and the coating may be coated on a lithium insertion electrode active material such as lithium nickel manganese cobalt oxide (LiNixMnyCo1-x-yO2 or NMC).Type: ApplicationFiled: August 21, 2018Publication date: June 11, 2020Inventors: Weidong ZHOU, Lixin WANG, Fu ZHOU, Derek JOHNSON
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Patent number: 10656132Abstract: Provided are sampling pumps and gas analyzers using the sampling pumps. The sampling pump may include at least one reciprocating pump set and a control system. Each reciprocating pump set can include two reciprocating pumps. The control system can output drive signals for controlling reciprocating drawing and compressing operations of the reciprocating pumps, where the control system may be designed to output the drive signals that cause the two reciprocating pumps within the same set to provide opposing impact directions at the same time.Type: GrantFiled: July 17, 2014Date of Patent: May 19, 2020Assignees: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD., SHENZHEN MINDRAY SCIENTIFIC CO., LTD.Inventors: Weidong Zhou, Zhonghua Liu, Yunfeng Liu, Jian Cen, Heng Chen, Guangqi Huang, Joakim Carl Gabrielsson, Johan Nils Ernst Werner, Peter Erik Axel Svedmyr
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Patent number: 10593938Abstract: A nanoparticle and a method for fabricating the nanoparticle utilize a decomposable material yoke located within permeable organic polymer material shell and separated from the permeable organic polymer material shell by a void space. When the decomposable material yoke comprises a sulfur material and the permeable organic polymer material shell comprises a material permeable to both a sulfur material vapor and a lithium ion within a battery electrolyte the nanoparticle may be used within an electrode for a Li/S battery absent the negative effects of battery electrode materials expansion.Type: GrantFiled: August 30, 2017Date of Patent: March 17, 2020Assignee: CORNELL UNIVERSITYInventors: Yingchao Yu, Weidong Zhou, Hao Chen, Hector D. Abruna
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Patent number: 10408806Abstract: Aspects of enhanced nanoscale gas chromatography are described. In one embodiment, a nano-scale gas chromatography (GC) module includes a light source, a light detector, and a sensor module having vertically-integrated photonic crystal slab (PCS) Fano resonance filter and GC channel layers. The PCS Fano resonance filter layer includes a hole lattice region, and the GC channel layer comprises a gas channel for separation of analytes in a gas mixture. The gas channel includes a coiled section and an extended length section, where the extended length section extends through a region in the GC channel layer that is stacked in proximity with the hole lattice region. The hole lattice region in the PCS Fano resonance filter layer provides local field enhancement of light generated by the light source for increased light-matter interaction with the analytes in the gas channel.Type: GrantFiled: October 20, 2015Date of Patent: September 10, 2019Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Yuze Sun, Weidong Zhou
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Patent number: 10326136Abstract: An electrode material for an electrochemical cell, such as a lithium ion battery or a lithium sulfur battery, is provided. The electrode may be a negative anode. The electrode material comprises a composite comprising a porous matrix comprising a carbonized material. The electrode material further comprises a plurality of silicon particles homogeneously dispersed in the porous matrix of carbonized material. Each silicon particle of the plurality has an average particle diameter of greater than or equal to about 5 nanometers and less than or equal to about 20 micrometers.Type: GrantFiled: September 29, 2015Date of Patent: June 18, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Xingcheng Xiao, Weidong Zhou
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Publication number: 20190086120Abstract: An internal pressure relief safety valve of a water heater includes: a valve body including a water inflow channel, a water outflow channel and a pressure relief channel, the water inflow channel communicates with the water outflow channel through a water outflow hole; a unidirectional water inflow assembly disposed in the valve body and used for allowing water flow to flow from the water inflow channel to the water outflow channel unidirectionally; a valve clack cooperating with a side wall of the pressure relief channel in a sliding and sealing way; a flexible sealing gasket installed at one end of the valve clack facing toward the pressure relief port and used for cooperating with the pressure relief port; and a pressure relief spring used for applying pressure to the valve clack, so that the flexible sealing gasket blocks the pressure relief port.Type: ApplicationFiled: August 21, 2018Publication date: March 21, 2019Applicant: Zhejiang Dunyun Industrial Co., Ltd.Inventors: Weidong ZHOU, Tianlu ZHOU, Ye FENG
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Patent number: 10199643Abstract: A negative electrode includes an active material. The active material includes a silicon-based core and a two-dimensional, layered mesoporous carbon coating in continuous contact with the silicon-based core. The two-dimensional, layered mesoporous carbon coating is capable of expanding and contracting with the silicon-based core. The negative electrode also includes a binder.Type: GrantFiled: December 9, 2015Date of Patent: February 5, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Weidong Zhou, Xingcheng Xiao
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Publication number: 20180321176Abstract: 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.Type: ApplicationFiled: July 9, 2018Publication date: November 8, 2018Inventors: Yingchao Yu, Héctor D. Abruña, Deli Wang, Weidong Zhou, Liu Hongfang, Qin Shuang
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Publication number: 20180241034Abstract: A nanoparticle and a method for fabricating the nanoparticle utilize a decomposable material yoke located within permeable organic polymer material shell and separated from the permeable organic polymer material shell by a void space. When the decomposable material yoke comprises a sulfur material and the permeable organic polymer material shell comprises a material permeable to both a sulfur material vapor and a lithium ion within a battery electrolyte the nanoparticle may be used within an electrode for a Li/S battery absent the negative effects of battery electrode materials expansion.Type: ApplicationFiled: August 30, 2017Publication date: August 23, 2018Applicant: CORNELL UNIVERSITYInventors: Yingchao Yu, Weidong Zhou, Hao Chen, Hector D. Abruna
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Patent number: 10018583Abstract: 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.Type: GrantFiled: March 21, 2014Date of Patent: July 10, 2018Assignees: Cornell University, Huazhong University of Science and TechnologyInventors: Yingchao Yu, Héctor D. Abruña, Deli Wang, Weidong Zhou, Liu Hongfang, Qin Shuang
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Patent number: 9941663Abstract: Vertical cavity light emitting sources that utilize patterned membranes as reflectors are provided. The vertical cavity light emitting sources have a stacked structure that includes an active region disposed between an upper reflector and a lower reflector. The active region, upper reflector and lower reflector can be fabricated from single or multi-layered thin films of solid states materials (“membranes”) that can be separately processed and then stacked to form a vertical cavity light emitting source.Type: GrantFiled: May 17, 2012Date of Patent: April 10, 2018Assignees: Wisconsin Alumni Research Foundation, Board of Regents, The University of Texas SystemInventors: Zhenqiang Ma, Weidong Zhou
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Patent number: 9840546Abstract: The growth hormone with high biological activity modified by the double-stranded polyethylene glycol at a single site and the preparation method thereof are provided. The PEGylated growth hormone has a higher biological activity and a longer half-life than the unmodified growth hormone. The composition comprising the PEGylated growth hormone is useful in the treatment of the growth or development disorder such as growth hormone deficiency, Turner syndrome etc.Type: GrantFiled: April 3, 2008Date of Patent: December 12, 2017Assignee: Biosteed Gene Expression Tech. Co., Ltd.Inventors: Weidong Zhou, Xiaojin Liao, Li Sun, Linzhong Zhang, Qingsong Lu, Shiye Shen, Lishan Yang, Defang Zhang, Huihuang Lin, Ping Zhang
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Publication number: 20170315102Abstract: Aspects of enhanced nanoscale gas chromatography are described. In one embodiment, a nano-scale gas chromatography (GC) module includes a light source, a light detector, and a sensor module having vertically-integrated photonic crystal slab (PCS) Fano resonance filter and GC channel layers. The PCS Fano resonance filter layer includes a hole lattice region, and the GC channel layer comprises a gas channel for separation of analytes in a gas mixture. The gas channel includes a coiled section and an extended length section, where the extended length section extends through a region in the GC channel layer that is stacked in proximity with the hole lattice region. The hole lattice region in the PCS Fano resonance filter layer provides local field enhancement of light generated by the light source for increased light-matter interaction with the analytes in the gas channel.Type: ApplicationFiled: October 20, 2015Publication date: November 2, 2017Inventors: YUZE SUN, WEIDONG ZHOU
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Patent number: 9780361Abstract: In an example of the method disclosed herein, SiOx (0<x<2) particles are combined with a lithium metal. The SiOx (0<x<2) particles and the lithium metal are caused to react to form lithium oxide nanoparticles in a silicon matrix. At least some of the lithium oxide nanoparticles are removed from the silicon matrix to form porous silicon particles.Type: GrantFiled: November 12, 2014Date of Patent: October 3, 2017Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Xingcheng Xiao, Weidong Zhou
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Patent number: 9742028Abstract: An example of a flexible membrane includes a porous membrane and a solid electrolyte coating formed on at least a portion of a surface of the porous membrane, in pores of the porous membrane, or both on the surface and in the pores. The solid electrolyte coating includes i) a polymer chain or ii) an inorganic ionically conductive material. The polymer chain or the inorganic material includes a group to interact or react with a polysulfide through covalent bonding or supramolecular interaction.Type: GrantFiled: August 4, 2014Date of Patent: August 22, 2017Assignee: GM Global Technology Operations LLCInventors: Weidong Zhou, Xingcheng Xiao, Mei Cai
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Patent number: 9704951Abstract: A magnetic field-guided method of metal-assisted chemical etching comprises immersing a structure that comprises a two-dimensional magnetic pattern layer on a surface thereof in an etchant solution. The magnetic pattern layer sinks into the structure as portions of the structure directly under the magnetic pattern layer are etched. A programmable magnetic field H(t) is applied to the structure during etching to guide the sinking of the magnetic pattern layer, thereby controlling the etching of the structure in three dimensions.Type: GrantFiled: November 14, 2014Date of Patent: July 11, 2017Assignees: The Board of Trustees of the University of Illinois, Board of Regents, The University of Texas SystemInventors: Xiuling Li, Weidong Zhou, Wen Huang
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Patent number: 9624420Abstract: The present invention relates to the field of oil and natural gas well cementation engineering, in particular to a foam stabilizer composition, foamed cement slurry and an additive composition thereof. The foam stabilizer composition comprises C6-C20 alkyl amido alkyl amine oxide, C6-C20 alkyl amido alkyl betaine, and triterpenoid saponin compound. The foam stabilizer composition provided in the present invention is helpful for forming foamed cement slurry that has high foam stability, and the foam stabilizer composition can work with other active components in the foamed slurry additive composition provided in the present invention to enable the foamed cement slurry that contains the additive composition to obtain low density, high foam stability, low permeability, and high compressive strength, which is especially applicable to well cementing operation in an oil and natural gas exploration and development process.Type: GrantFiled: October 18, 2016Date of Patent: April 18, 2017Assignee: China Univeristy of Petroleum (East China)Inventors: Chengwen Wang, Ruihe Wang, Baojiang Sun, Weidong Zhou
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Publication number: 20170092950Abstract: An electrode material for an electrochemical cell, such as a lithium ion battery or a lithium sulfur battery, is provided. The electrode may be a negative anode. The electrode material comprises a composite comprising a porous matrix comprising a carbonized material. The electrode material further comprises a plurality of silicon particles homogeneously dispersed in the porous matrix of carbonized material. Each silicon particle of the plurality has an average particle diameter of greater than or equal to about 5 nanometers and less than or equal to about 20 micrometers.Type: ApplicationFiled: September 29, 2015Publication date: March 30, 2017Applicant: GM Global Technology Operations LLCInventors: Xingcheng Xiao, Weidong Zhou
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Publication number: 20160372742Abstract: A nanoparticle and a method for fabricating the nanoparticle utilize a decomposable material yoke located within permeable organic polymer material shell and separated from the permeable organic polymer material shell by a void space. When the decomposable material yoke comprises a sulfur material and the permeable organic polymer material shell comprises a material permeable to both a sulfur material vapor and a lithium ion within a battery electrolyte the nanoparticle may be used within an electrode for a Li/S battery absent the negative effects of battery electrode materials expansion.Type: ApplicationFiled: July 7, 2014Publication date: December 22, 2016Inventors: Yingchao Yu, Weidong Zhou, Hao Chen, Hector Abruna
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Patent number: 9506900Abstract: Provided are gas treatment devices and medical equipment thereof. The gas treatment device can include at least a first gas monitoring module and a second gas monitoring module, a master control module and an integrated gas circuit board. A gas outlet, at least one gas inlet and a monitoring interface can be arranged on a surface of the integrated gas circuit board, while a first and a second gas circuits may be arranged inside the integrated gas circuit board. The gas inlet can include a first gas inlet and a second gas inlet. The gas outlet and the first gas inlet can communicate with first and second ends of the first gas circuit, and the second gas inlet can communicate with one end of the second gas circuit. The first and the second gas circuits can communicate with the first and the second gas monitoring modules through corresponding monitoring interfaces.Type: GrantFiled: July 17, 2014Date of Patent: November 29, 2016Assignee: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.Inventors: Xuegang Zhang, Zhonghua Liu, Meng Zhu, Weidong Zhou, Jian Cen, Shuangtao Xiong, Guangqi Huang, Joakim Carl Gabrielsson, Johan Nils Ernst Werner