Patents by Inventor Ding-Sheng Wang
Ding-Sheng Wang 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: 8808911Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a layered type lithium transition metal oxide. A material of the coating layer is a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.Type: GrantFiled: November 30, 2012Date of Patent: August 19, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Jun Lu, Ding-Sheng Wang, Xiang-Wen Liu, Qing Peng
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Patent number: 8802291Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a layered type lithium nickel cobalt manganese oxide. The coating layer comprises a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.Type: GrantFiled: November 30, 2012Date of Patent: August 12, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Jun Lu, Ding-Sheng Wang, Qing Peng
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Patent number: 8795892Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a lithium cobalt oxide. The coating layer includes a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.Type: GrantFiled: November 30, 2012Date of Patent: August 5, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Jun Lu, Wei-Yang Wang, Ding-Sheng Wang, Qing Peng
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Publication number: 20140087254Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a layered type lithium transition metal oxide. A material of the coating layer is a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.Type: ApplicationFiled: November 30, 2012Publication date: March 27, 2014Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITYInventors: YA-DONG LI, JUN LU, DING-SHENG WANG, XIANG-WEN LIU, QING PENG
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Publication number: 20140087266Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a lithium cobalt oxide. The coating layer includes a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.Type: ApplicationFiled: November 30, 2012Publication date: March 27, 2014Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITYInventors: YA-DONG LI, JUN LU, WEI-YANG WANG, DING-SHENG WANG, QING PENG
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Publication number: 20140087261Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a layered type lithium nickel cobalt manganese oxide. The coating layer comprises a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.Type: ApplicationFiled: November 30, 2012Publication date: March 27, 2014Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITYInventors: YA-DONG LI, JUN LU, DING-SHENG WANG, QING PENG
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Patent number: 8303841Abstract: A method for preparing a cathode active material of lithium battery is shown. The method includes providing MnOOH and lithium source material, and mixing the MnOOH and the lithium source material in a liquid solvent to achieve a mixture. Then, the mixture is dried to remove the liquid solvent, thereby achieving a precursor. A temperature of the precursor is elevated from room temperature to a sintering temperature of about 500° C. to about 900° C. at a uniform rate, and the precursor is sintered at the sintering temperature for about 3 hours to about 24 hours.Type: GrantFiled: September 10, 2010Date of Patent: November 6, 2012Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Xiao-Ling Xiao, Ding-Sheng Wang
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Patent number: 8012450Abstract: A method for making the mesoporous material includes the following steps: dissolving a nanocrystal powder in an organic solvent, and achieving a solution A with concentration of 1-30 mg/ml; dissolving a surfactant in water, and achieving a solution B with an approximate concentration of 0.002-0.05 mol/ml; mixing the solution A and the solution B in a volume ratio of 1:(5-30), and achieving a mixture; stirring and emulsifying the mixture, until an emulsion C is achieved; removing the organic solvent from the emulsion C, and achieving a deposit; washing the deposit with deionized water, and achieving a colloid; and drying and calcining the colloid, and eventually achieving a mesoporous material. The mesoporous material has a large specific surface area, a high porosity, and a narrow diameter distribution.Type: GrantFiled: December 14, 2007Date of Patent: September 6, 2011Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Ding-Sheng Wang, Feng Bai, Zi-Yang Huo, Li-Ping Liu, Wei Chen
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Patent number: 7993618Abstract: A method for making the metal oxide includes the following steps: mixing a metal nitrate with a solvent of octadecyl amine, and achieving a mixture; agitating and reacting the mixture at a reaction temperature for a reaction period; cooling the mixture to a cooling temperature, and achieving a deposit; and washing the deposit with an organic solvent, drying the deposit at a drying temperature and achieving a metal oxide nanocrystal. The present method for making a metal oxide nanocrystal is economical and timesaving, and has a low toxicity associated therewith. Thus, the method is suitable for industrial mass production. The metal oxide nanocrystal material made by the present method has a readily controllable size, a narrow size distribution, and good crystallinity.Type: GrantFiled: November 2, 2007Date of Patent: August 9, 2011Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Ding-Sheng Wang
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Publication number: 20110175019Abstract: A method for preparing a cathode active material of lithium battery is shown. The method includes providing MnOOH and lithium source material, and mixing the MnOOH and the lithium source material in a liquid solvent to achieve a mixture. Then, the mixture is dried to remove the liquid solvent, thereby achieving a precursor. A temperature of the precursor is elevated from room temperature to a sintering temperature of about 500° C. to about 900° C. at a uniform rate, and the precursor is sintered at the sintering temperature for about 3 hours to about 24 hours.Type: ApplicationFiled: September 10, 2010Publication date: July 21, 2011Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: YA-DONG LI, XIAO-LING XIAO, DING-SHENG WANG
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Patent number: 7846216Abstract: A method for making colloidal nanocrystals includes the following steps: dissolving a nanocrystal powder in an organic solvent, and achieving a solution A of a concentration of 1-30 mg/ml; dissolving a surfactant in water, and achieving a solution B of a concentration of 0.002-0.05 mmol/ml; mixing the solution A and the solution B in a volume ratio of 1: (5-30), and achieving a mixture; stirring and emulsifying the mixture, until an emulsion C is achieved; removing the organic solvent from the emulsion C, and achieving a deposit; then washing the deposit with deionized water, and achieving colloidal nanocrystals. The present method for making colloidal nanocrystals is economical and timesaving, and has a low toxicity associated therewith. Thus, the method is suitable for industrial mass production. The colloidal nanocrystals made by the present method have a readily controllable size, a narrow size distribution, and good configuration.Type: GrantFiled: December 14, 2007Date of Patent: December 7, 2010Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Feng Bai, Ding-Sheng Wang, Zi-Yang Huo, Wei Chen, Li-Ping Liu
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Publication number: 20100278721Abstract: A method for making the mesoporous material includes the following steps: dissolving a nanocrystal powder in an organic solvent, and achieving a solution A with concentration of 1-30 mg/ml; dissolving a surfactant in water, and achieving a solution B with an approximate concentration of 0.002-0.05 mol/ml; mixing the solution A and the solution B in a volume ratio of 1: (5-30), and achieving a mixture; stirring and emulsifying the mixture, until an emulsion C is achieved; removing the organic solvent from the emulsion C, and achieving a deposit; washing the deposit with deionized water, and achieving a colloid; and drying and calcining the colloid, and eventually achieving a mesoporous material. The mesoporous material has a large specific surface area, a high porosity, and a narrow diameter distribution.Type: ApplicationFiled: December 14, 2007Publication date: November 4, 2010Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventors: Ya-Dong Li, Ding-Sheng Wang, Feng Bai, Zi-Yang Huo, Li-Ping Liu, Wei Chen
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Publication number: 20100278718Abstract: A method for making monodisperse silver nanocrystals includes the following step: (1) mixing a silver nitrate with octadecyl amine as a solvent, and achieving a mixture; (2) agitating and reacting the mixture at a reaction temperature for a reaction period; (3) cooling the mixture to a cooling temperature, and achieving a deposit; and (4) washing the deposit with an organic solvent, drying the deposit at a drying temperature, and achieving monodisperse silver nanocrystals. After step (2), the method can further include a step of mixing a sulfur or selenium into the reactant to achieve monodisperse silver sulfide or silver selenide nanocrystals.Type: ApplicationFiled: December 14, 2007Publication date: November 4, 2010Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventors: Ya-Dong Li, Ding-Sheng Wang
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Publication number: 20080247932Abstract: A method for making colloidal nanocrystals includes the following steps: dissolving a nanocrystal powder in an organic solvent, and achieving a solution A of a concentration of 1-30 mg/ml; dissolving a surfactant in water, and achieving a solution B of a concentration of 0.002-0.05 mmol/ml; mixing the solution A and the solution B in a volume ratio of 1: (5-30), and achieving a mixture; stirring and emulsifying the mixture, until an emulsion C is achieved; removing the organic solvent from the emulsion C, and achieving a deposit; then washing the deposit with deionized water, and achieving colloidal nanocrystals. The present method for making colloidal nanocrystals is economical and timesaving, and has a low toxicity associated therewith. Thus, the method is suitable for industrial mass production. The colloidal nanocrystals made by the present method have a readily controllable size, a narrow size distribution, and good configuration.Type: ApplicationFiled: December 14, 2007Publication date: October 9, 2008Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.Inventors: Ya-Dong Li, Feng Bai, Ding-Sheng Wang, Zi-Yang Huo, Wei Chen, Li-Ping Liu
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Publication number: 20080241054Abstract: A method for making the metal oxide includes the following steps: mixing a metal nitrate with a solvent of octadecyl amine, and achieving a mixture; agitating and reacting the mixture at a reaction temperature for a reaction period; cooling the mixture to a cooling temperature, and achieving a deposit; and washing the deposit with an organic solvent, drying the deposit at a drying temperature and achieving a metal oxide nanocrystal. The present method for making a metal oxide nanocrystal is economical and timesaving, and has a low toxicity associated therewith. Thus, the method is suitable for industrial mass production.Type: ApplicationFiled: November 2, 2007Publication date: October 2, 2008Applicants: Tsinghua University, HON HAI Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Ding-Sheng Wang