Patents by Inventor Shuaifeng Zhang
Shuaifeng Zhang 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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Patent number: 11843109Abstract: The present invention discloses a preparation method to make lithium selenium secondary battery cathode materials with a high energy density and stable electrochemical performances. Two dimensional carbon materials prepared from the presently-disclosed method is not only made from readily-available low-cost raw materials, but is also of simple preparation method. It can effectively shorten the migration distance of lithium ions in the charging and discharging process and improve conductivity and utilization of selenium after compounded with carbon and selenium; the selenium carbon cathode material can be assembled into lithium selenium secondary batteries with high energy density and stable electrochemical performances. By further scaling up, the assembled lithium selenium pouch-cell batteries still hold excellent electrochemical performances and high energy density, showing broad application prospects.Type: GrantFiled: May 30, 2019Date of Patent: December 12, 2023Assignee: II-VI DELAWARE, INC.Inventors: Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin
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IMMOBILIZED SELENIUM, A METHOD OF MAKING, AND USES OF IMMOBILIZED SELENIUM IN A RECHARGEABLE BATTERY
Publication number: 20220407049Abstract: An immobilized selenium body, made from carbon and selenium and optionally sulfur, makes selenium more stable, requiring a higher temperature or an increase in kinetic energy for selenium to escape from the immobilized selenium body and enter a gas system, as compared to selenium alone Immobilized selenium localized in a carbon skeleton can be utilized in a rechargeable battery Immobilization of the selenium can impart compression stress on both the carbon skeleton and the selenium. Such compression stress enhances the electrical conductivity in the carbon skeleton and among the selenium particles and creates an interface for electrons to be delivered and or harvested in use of the battery. A rechargeable battery made from immobilized selenium can be charged or discharged at a faster rate over conventional batteries and can demonstrate excellent cycling stability.Type: ApplicationFiled: August 31, 2022Publication date: December 22, 2022Inventors: Elgin E. EISSLER, Wen-Qing XU, Xiaoming LI, Yancheng ZHANG, Shailesh PATKAR, Giovanni BARBAROSSA, Yu-Guo GUO, Shuaifeng ZHANG, Yaxia YIN -
Immobilized selenium, a method of making, and uses of immobilized selenium in a rechargeable battery
Patent number: 11515518Abstract: An immobilized selenium body, made from carbon and selenium and optionally sulfur, makes selenium more stable, requiring a higher temperature or an increase in kinetic energy for selenium to escape from the immobilized selenium body and enter a gas system, as compared to selenium alone. Immobilized selenium localized in a carbon skeleton can be utilized in a rechargeable battery. Immobilization of the selenium can impart compression stress on both the carbon skeleton and the selenium. Such compression stress enhances the electrical conductivity in the carbon skeleton and among the selenium particles and creates an interface for electrons to be delivered and or harvested in use of the battery. A rechargeable battery made from immobilized selenium can be charged or discharged at a faster rate over conventional batteries and can demonstrate excellent cycling stability.Type: GrantFiled: June 11, 2020Date of Patent: November 29, 2022Assignees: INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCES, II-VI DELAWARE, INC.Inventors: Elgin E. Eissler, Wen-Qing Xu, Yancheng Zhang, Xiaoming Li, Shailesh Patkar, Giovanni Barbarossa, Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin -
Immobilized selenium, a method of making, and uses of immobilized selenium in a rechargeable battery
Patent number: 11482698Abstract: An immobilized selenium body, made from carbon and selenium and optionally sulfur, makes selenium more stable, requiring a higher temperature or an increase in kinetic energy for selenium to escape from the immobilized selenium body and enter a gas system, as compared to selenium alone. Immobilized selenium localized in a carbon skeleton can be utilized in a rechargeable battery. Immobilization of the selenium can impart compression stress on both the carbon skeleton and the selenium. Such compression stress enhances the electrical conductivity in the carbon skeleton and among the selenium particles and creates an interface for electrons to be delivered and or harvested in use of the battery. A rechargeable battery made from immobilized selenium can be charged or discharged at a faster rate over conventional batteries and can demonstrate excellent cycling stability.Type: GrantFiled: October 25, 2018Date of Patent: October 25, 2022Assignees: II-VI DELAWARE, INC., INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCESInventors: Elgin E. Eissler, Wen-Qing Xu, Xiaoming Li, Yancheng Zhang, Shailesh Patkar, Giovanni Barbarossa, Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin -
Immobilized Selenium, a Method of Making, and Uses of Immobilized Selenium in a Rechargeable Battery
Publication number: 20200303725Abstract: An immobilized selenium body, made from carbon and selenium and optionally sulfur, makes selenium more stable, requiring a higher temperature or an increase in kinetic energy for selenium to escape from the immobilized selenium body and enter a gas system, as compared to selenium alone. Immobilized selenium localized in a carbon skeleton can be utilized in a rechargeable battery. Immobilization of the selenium can impart compression stress on both the carbon skeleton and the selenium. Such compression stress enhances the electrical conductivity in the carbon skeleton and among the selenium particles and creates an interface for electrons to be delivered and or harvested in use of the battery. A rechargeable battery made from immobilized selenium can be charged or discharged at a faster rate over conventional batteries and can demonstrate excellent cycling stability.Type: ApplicationFiled: June 11, 2020Publication date: September 24, 2020Inventors: Elgin E. Eissler, Wen-Qing Xu, Yancheng Zhang, Xiaoming Li, Shailesh Patkar, Giovanni Barbarossa, Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin -
Immobilized selenium, a method of making, and uses of immobilized selenium in a rechargeable battery
Patent number: 10734638Abstract: An immobilized selenium body, made from carbon and selenium and optionally sulfur, makes selenium more stable, requiring a higher temperature or an increase in kinetic energy for selenium to escape from the immobilized selenium body and enter a gas system, as compared to selenium alone. Immobilized selenium localized in a carbon skeleton can be utilized in a rechargeable battery. Immobilization of the selenium can impart compression stress on both the carbon skeleton and the selenium. Such compression stress enhances the electrical conductivity in the carbon skeleton and among the selenium particles and creates an interface for electrons to be delivered and or harvested in use of the battery. A rechargeable battery made from immobilized selenium can be charged or discharged at a faster rate over conventional batteries and can demonstrate excellent cycling stability.Type: GrantFiled: February 16, 2017Date of Patent: August 4, 2020Assignees: II-VI Delaware, Inc., Institute of Chemistry, Chinese Academy of ScienceInventors: Elgin E. Eissler, Wen-Qing Xu, Xiaoming Li, Yancheng Zhang, Shailesh Patkar, Giovanni Barbarossa, Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin -
Patent number: 10439201Abstract: A sulfur-carbon composite includes micro-porous carbon nanosheets and sulfur. The sulfur is loaded into the micropores of the micro-porous carbon nanosheets. The sulfur-carbon composite can be included in an electrode material. The sulfur-carbon composite can be included in a lithium-sulfur battery. A process for preparing the sulfur-carbon composite includes carbonization-activation of carbonaceous precursor, purification, and loading of sulfur into micro-porous carbon nanosheets.Type: GrantFiled: June 5, 2015Date of Patent: October 8, 2019Assignee: Robert Bosch GmbHInventors: Yuguo Guo, Shuaifeng Zhang, Yaxia Yin, Yunhua Chen, NaHong Zhao
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Publication number: 20190280285Abstract: The present invention discloses a preparation method to make lithium selenium secondary battery cathode materials with a high energy density and stable electrochemical performances. Two dimensional carbon materials prepared from the presently-disclosed method is not only made from readily-available low-cost raw materials, but is also of simple preparation method. It can effectively shorten the migration distance of lithium ions in the charging and discharging process and improve conductivity and utilization of selenium after compounded with carbon and selenium; the selenium carbon cathode material can be assembled into lithium selenium secondary batteries with high energy density and stable electrochemical performances. By further scaling up, the assembled lithium selenium pouch-cell batteries still hold excellent electrochemical performances and high energy density, showing broad application prospects.Type: ApplicationFiled: May 30, 2019Publication date: September 12, 2019Inventors: Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin
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Patent number: 10340507Abstract: Disclosed is method of preparing a selenium carbon composite material and a use of the selenium carbon composite material in a cathode of a lithium selenium secondary battery. A battery formed with a cathode of the disclosed selenium carbon composite material has high energy density and stable electrochemical performance. The disclosed selenium carbon composite material can effectively shorten the migration distance of lithium ions during charging and discharging of the battery and improve conductivity and utilization of selenium after compounding carbon and selenium. Multiple batteries formed with cathodes of the disclosed selenium carbon composite material can be assembled into a lithium selenium pouch-cell battery having stable electrochemical performance and high energy density.Type: GrantFiled: September 12, 2016Date of Patent: July 2, 2019Assignees: Institute of Chemistry, Chinese Academy of Sciences, II_VI IncorporatedInventors: Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin
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Immobilized Selenium, a Method of Making, and Uses of Immobilized Selenium in a Rechargeable Battery
Publication number: 20190058187Abstract: An immobilized selenium body, made from carbon and selenium and optionally sulfur, makes selenium more stable, requiring a higher temperature or an increase in kinetic energy for selenium to escape from the immobilized selenium body and enter a gas system, as compared to selenium alone. Immobilized selenium localized in a carbon skeleton can be utilized in a rechargeable battery. Immobilization of the selenium can impart compression stress on both the carbon skeleton and the selenium. Such compression stress enhances the electrical conductivity in the carbon skeleton and among the selenium particles and creates an interface for electrons to be delivered and or harvested in use of the battery. A rechargeable battery made from immobilized selenium can be charged or discharged at a faster rate over conventional batteries and can demonstrate excellent cycling stability.Type: ApplicationFiled: October 25, 2018Publication date: February 21, 2019Inventors: Elgin E. Eissler, Wen-Qing Xu, Xiaoming Li, Yancheng Zhang, Shailesh Patkar, Giovanni Barbarossa, Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin -
Publication number: 20180159121Abstract: A sulfur-carbon composite includes micro-porous carbon nanosheets and sulfur. The sulfur is loaded into the micropores of the micro-porous carbon nanosheets. The sulfur-carbon composite can be included in an electrode material. The sulfur-carbon composite can be included in a lithium-sulfur battery. A process for preparing the sulfur-carbon composite includes carbonization-activation of carbonaceous precursor, purification, and loading of sulfur into micro-porous carbon nanosheets.Type: ApplicationFiled: June 5, 2015Publication date: June 7, 2018Inventors: Yuguo Guo, Shuaifeng Zhang, Yaxia Yin, Yunhua Chen, NaHong Zhao
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Immobilized Selenium, a Method of Making, and Uses of Immobilized Selenium in a Rechargeable Battery
Publication number: 20170301914Abstract: An immobilized selenium body, made from carbon and selenium and optionally sulfur, makes selenium more stable, requiring a higher temperature or an increase in kinetic energy for selenium to escape from the immobilized selenium body and enter a gas system, as compared to selenium alone. Immobilized selenium localized in a carbon skeleton can be utilized in a rechargeable battery. Immobilization of the selenium can impart compression stress on both the carbon skeleton and the selenium. Such compression stress enhances the electrical conductivity in the carbon skeleton and among the selenium particles and creates an interface for electrons to be delivered and or harvested in use of the battery. A rechargeable battery made from immobilized selenium can be charged or discharged at a faster rate over conventional batteries and can demonstrate excellent cycling stability.Type: ApplicationFiled: February 16, 2017Publication date: October 19, 2017Inventors: Elgin E. Eissler, Wen-Qing Xu, Xiaoming Li, Yancheng Zhang, Shailesh Patkar, Giovanni Barbarossa, Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin -
Publication number: 20170084908Abstract: Disclosed is method of preparing a selenium carbon composite material and a use of the selenium carbon composite material in a cathode of a lithium selenium secondary battery. A battery formed with a cathode of the disclosed selenium carbon composite material has high energy density and stable electrochemical performance. The disclosed selenium carbon composite material can effectively shorten the migration distance of lithium ions during charging and discharging of the battery and improve conductivity and utilization of selenium after compounding carbon and selenium. Multiple batteries formed with cathodes of the disclosed selenium carbon composite material can be assembled into a lithium selenium pouch-cell battery having stable electrochemical performance and high energy density.Type: ApplicationFiled: September 12, 2016Publication date: March 23, 2017Inventors: Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin