Patents by Inventor Jian Jun Li
Jian Jun Li 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: 20170214046Abstract: An anode binder includes a polymer obtained by polymerizing a maleimide type monomer with an organic diamine type compound. A lithium ion battery includes an anode electrode, an electrolyte, a separator, and an anode electrode. The anode electrode includes an anode active material, a conducting agent, and the anode binder.Type: ApplicationFiled: April 7, 2017Publication date: July 27, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Guan-Nan Qian, Xiang-Ming He, Li Wang, Yu-Ming Shang, Jian-Jun LI, Jing Luo, Jian Gao, Yao-Wu Wang
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Publication number: 20170191758Abstract: A powder sintering device is disclosed. The powder sintering device includes a furnace body, a first heating device, and a vibration device. The furnace body includes a bottom wall and a side wall cooperatively defining a reaction chamber. The first heating device is located outside the furnace body, and configured to heat the furnace body. The vibration device is located outside the furnace body, and configured to vibrate the furnace body.Type: ApplicationFiled: March 22, 2017Publication date: July 6, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGUA UNIVERSITYInventors: Xiang-Ming He, Jian-Jun Li, Jian-Li Zhang, Li Wang, Jing Luo, Yu-Ming Shang, Cheng-Hao Xu, Jian Gao
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Publication number: 20170182501Abstract: A centrifugal separation apparatus is disclosed. The centrifugal separation apparatus comprises a rotary drum, wherein an inlet opening and an outlet opening are respectively defined on opposite ends of the rotary drum along a central axis of the rotary drum. A fixing rod is disposed on the central axis, a baffle plate is disposed on the fixing rod, and a distance from each point on an edge of the baffle plate to the central axis is greater than a radius of the outlet opening.Type: ApplicationFiled: March 10, 2017Publication date: June 29, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Xiang-Ming He, Jing Luo, Li Wang, Jian-Li Zhang, Shao-Jun Liu, SR., Jian-Jun Li, Yu-Ming Shang, Yu-Mei Ren
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Publication number: 20170179529Abstract: A safe additive for a lithium ion battery is disclosed. The safe additive comprises a maleimide type monomer and an enediyne type compound. The maleimide type monomer comprises at least one of a maleimide monomer, a bismaleimide monomer, a multimaleimide monomer and a maleimide type derivative monomer. An electrolyte liquid and a lithium ion battery containing the safe additive are also disclosed.Type: ApplicationFiled: January 23, 2017Publication date: June 22, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Guan-Nan Qian, Xiang-Ming He, Li Wang, Ju-Ping Yang, Yu-Ming Shang, Jian-Jun Li, Hong-Sheng Zhang, Jian Gao
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Publication number: 20170167791Abstract: A powder sintering system is disclosed. The powder sintering system includes a furnace body, at least one first dispersing device, at least one second dispersing device, a heating device, and a gas introducing device. The furnace body includes a bottom and a side wall defines a funnel shaped chamber. The at least one first dispersing device is located on the bottom of the furnace body, and disperses powder from the bottom of the furnace body to the side wall of the furnace body. The at least one second dispersing device is located on the side wall of the furnace body, and centrifugally disperse powder from the side wall of the furnace body to a center of the funnel shaped chamber. The heating device is located outside the furnace body. The gas introducing device supplies a protecting gas into the funnel shaped chamber.Type: ApplicationFiled: February 24, 2017Publication date: June 15, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Xiang-Ming He, Jian-Jun Li, Jian-Li Zhang, Li Wang, Yu-Ming Shang, Cheng-Hao Xu, Jing Luo, Jian Gao
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Publication number: 20170166677Abstract: A method for making a single ion nanoconductor is disclosed. In the method, a solution of nano sol is formed through a hydrolysis reaction. A silane coupling agent is added in the solution of nano sol, and heated in a protective gas to have a reaction thereby obtaining a solution of C?C group grafted nano sol. A methyl methacrylate monomer, an acrylic acid monomer, and an initiator are added to the solution of C?C group grafted nano sol, and heated to have a reaction thereby forming a nano sol-P(AA -MMA) composite. The nano sol-P(AA-MMA) composite is heated at an elevated pressure in a liquid phase medium to obtain a dehydroxy crystalline oxide nanoparticle-P(AA-MMA) composite. The dehydroxy crystalline oxide nanoparticle-P(AA-MMA) composite and lithium hydroxide are mixed and heated in an organic solvent to obtain the liquid dispersion of single ion nanoconductors.Type: ApplicationFiled: February 24, 2017Publication date: June 15, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Jiang Cao, Xiang-Ming He, Yu-Ming Shang, Li Wang, Jian-Jun Li, Hong-Sheng Zhang, Yao-Wu Wang, Jian Gao, Jing Luo
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Publication number: 20170170457Abstract: A powder sintering system is disclosed. The powder sintering system includes a furnace body, a first dispersing device, a second dispersing device, and a heating device. The furnace body includes a bottom and a side wall defines a funnel shaped chamber. The at least one first dispersing device is located on the bottom, and configured to centrifugally disperse and throw powder from the bottom to the side wall. The at least one second dispersing device is located on the side wall, and configured to centrifugally disperse and throw the powder from the side wall to a center of the funnel shaped chamber. The heating device is located outside the furnace body.Type: ApplicationFiled: February 27, 2017Publication date: June 15, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Xiang-Ming He, Jian-Jun Li, Jian-Li Zhang, Li Wang, Yu-Ming Shang, Cheng-Hao Xu, Jing Luo, Jian Gao
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Publication number: 20170170440Abstract: A method for making a composite separator is disclosed. In the method, a liquid dispersion of single ion nanoconductors is prepared. The liquid dispersion of the single ion nanoconductors is uniformly mixed with a polymer to form a film casting solution. The film casting solution is applied to a surface of a porous film.Type: ApplicationFiled: February 24, 2017Publication date: June 15, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Jiang Cao, Xiang-Ming He, Yu-Ming Shang, Li Wang, Jian-Jun Li, Hong-Sheng Zhang, Jian Gao, Yao-Wu Wang, Jing Luo, Zhen Liu
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Publication number: 20170170669Abstract: A method for managing capacity of lithium ion battery is disclosed. A warning capacity D or C is preset for a discharge process or a charge process. Two anode active materials are mixed and used to form a lithium ion battery. The lithium ion battery is discharged or charged, during which the voltage of the battery is monitored. When the voltage of the lithium ion battery is in a range, a warning is generated for a remaining discharge capacity of the first lithium ion battery reaching the warning capacity D, or a charging capacity of the lithium ion battery reaching the warning capacity C.Type: ApplicationFiled: February 24, 2017Publication date: June 15, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Li Wang, Xiang-Ming He, Ao-Jun Bai, Jian-Jun Li, Yu-Ming Shang, Jian Gao
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Publication number: 20170162870Abstract: A method for making a cathode composite material is disclosed. The method comprises: providing a maleimide type material, wherein the maleimide type material is selected from the group consisting of a maleimide type monomer, a polymer formed from the maleimide type monomer, and combinations thereof; mixing the maleimide type material with a cathode active material uniformly to form a mixture; heating the mixture at a temperature of about 200° C. to about 280° C. in a protective gas to obtain the cathode composite material. The cathode composite material, and a lithium ion battery using the same are also disclosed.Type: ApplicationFiled: February 24, 2017Publication date: June 8, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Guan-Nan Qian, Xiang-Ming He, Li Wang, Yu-Ming Shang, Jian-Jun Li, Zhen Liu, Jian Gao, Hong-Sheng Zhang, Yao-Wu Wang
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Publication number: 20170155128Abstract: A cathode composite material is disclosed. The cathode composite material comprises a cathode active material and a maleimide type monomer composed with the cathode active material. The cathode active material is a lithium transition metal oxide. The maleimide type monomer comprises at least one of a maleimide monomer, a bismaleimide monomer, a multimaleimide monomer, a maleimide type derivative monomer, and combinations thereof. A lithium ion battery is also disclosed.Type: ApplicationFiled: February 9, 2017Publication date: June 1, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Xiang-Ming He, Guan-Nan Qian, Yu-Ming Shang, Li Wang, Ju-Ping Yang, Jian-Jun Li, Peng Zhao, Jian Gao
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Publication number: 20170117590Abstract: A cathode composite material is disclosed. The cathode composite material comprises a cathode active material and a polymer composed with the cathode active material. The polymer is obtained by polymerizing a maleimide type monomer with an organic diamine type compound. The maleimide type monomer comprises at least one of a maleimide monomer, a bismaleimide monomer, a multimaleimide monomer and a maleimide type derivative monomer. A method for making the cathode composite material and a lithium ion battery are also disclosed.Type: ApplicationFiled: January 9, 2017Publication date: April 27, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Guan-Nan Qian, Xiang-Ming He, Li Wang, Yu-Ming Shang, Jian-Jun Li, Zhen Liu, Jian Gao, Hong-Sheng Zhang, Yao-Wu Wang
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Publication number: 20170117584Abstract: An additive for a lithium ion battery is disclosed. The additive is a polymer obtained by polymerizing a maleimide type monomer with an organic diamine type compound. The maleimide type monomer comprises at least one of a maleimide monomer, a bismaleimide monomer, a multimaleimide monomer and a maleimide type derivative monomer. An electrolyte liquid and a lithium ion battery are also disclosed.Type: ApplicationFiled: January 6, 2017Publication date: April 27, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Guan-Nan Qian, Xiang-Ming He, Yu-Ming Shang, Jian-Jun Li, Li Wang, Jian Gao, Ju-Ping Yang, Yao-Wu Wang, Peng Zhao
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Publication number: 20170077477Abstract: A method for making a polyolefin composite separator is disclosed. Methyl methacrylate and ?-(triethoxysilyl) propyl methacrylate are polymerized to form a copolymer. The copolymer and polyvinylidene fluoride are dissolved in a first solvent to form a first solution. A polyolefin porous film is immersed in a second solvent to soak the polyolefin porous film. The first solution is applied to a surface of the second solvent soaking polyolefin porous film. The polyolefin porous film having the first solution applied thereon is immersed in a third solvent to form holes, thereby forming a gel polymer electrolyte precursor layer on the surface of the polyolefin porous film. The polyolefin porous film having the gel polymer electrolyte precursor layer formed thereon is fumigated in an atmosphere of hydrochloric acid gas. A polyolefin composite separator and a lithium ion battery are also disclosed.Type: ApplicationFiled: November 22, 2016Publication date: March 16, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Peng Zhao, Xiang-Ming He, Yu-Ming Shang, Li Wang, Ju-Ping Yang, Jian-Jun Li, Jian Gao, Yao-Wu Wang
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Publication number: 20170077473Abstract: A method for making a polyolefin composite separator is disclosed. Methyl methacrylate and ?-(triethoxysilyl)propyl methacrylate are polymerized to form a copolymer. The copolymer is dissolved in a first solvent to form a copolymer solution. The copolymer solution is applied to a surface of a polyolefin porous film, and dried to form a gel polymer electrolyte precursor layer on the surface of the polyolefin porous film. The polyolefin porous film having the gel polymer electrolyte precursor layer applied thereon is fumigated in an atmosphere of hydrochloric acid gas. A polyolefin composite separator and a lithium ion battery are also disclosed.Type: ApplicationFiled: November 22, 2016Publication date: March 16, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Peng Zhao, Xiang-Ming He, Yu-Ming Shang, Li Wang, Ju-Ping Yang, Jian-Jun Li, Jian Gao, Yao-Wu Wang
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Publication number: 20170054149Abstract: A method for making a sulfur-graphene composite material is provided. In the method, an elemental sulfur solution and a graphene dispersion are provided. The elemental sulfur solution includes a first solvent and an elemental sulfur dissolved in the first solvent. The graphene dispersion includes a second solvent and graphene sheets dispersed in the second solvent. The elemental sulfur solution is added to the graphene dispersion, a number of elemental sulfur particles are precipitated and attracted to a surface of the graphene sheets to form the sulfur-graphene composite material. The sulfur-graphene composite material is separated from the mixture.Type: ApplicationFiled: November 2, 2016Publication date: February 23, 2017Inventors: LI WANG, XIANG-MING HE, JIAN-JUN LI, JIAN-WEI GUO, WEN-TING SUN, JIAN-GUO REN
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Patent number: 9570745Abstract: A method for making a cathode active material of a lithium ion battery, the cathode active material being represented by a chemical formula of Li[(Ni0.8Co0.1Mn0.1)1-xMox]O2, wherein 0<x?0.05. Source liquid solutions of Li, Ni2+, Co2+, Mn2+, and Mo6+ are mixed in stoichiometric ratio in a multi-carboxylic acid solution to form a solution. The solution is heated at 50° C. to 80° C. to form a wet gel. The wet gel is spray dried to form a dry gel. The dry gel is heated at a first temperature and then at a second temperature, the first temperature is in a range of 400° C. to 500° C., the second temperature is in a range of 750° C. to 850° C.Type: GrantFiled: April 14, 2016Date of Patent: February 14, 2017Assignees: Jiangsu-Huadong Institute of Li-ion Battery Co. Ltd., Tsinghua UniversityInventors: Jian-Gang Li, Lei Wang, Xiang-Ming He, Li Wang, Jian-Jun Li, Jian Gao, Yu-Ming Shang
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Publication number: 20170040596Abstract: A method for making lithium manganese phosphate is disclosed. A divalent manganese source, a lithium source and a phosphate source are mixed and dissolved in a solvothermal reaction medium to form a mixed solution. The solvothermal reaction medium includes an organic solvent and a solubilizing agent. The mixed solution is then solvothermal reacted. A method for making lithium manganese phosphate/carbon composite material is also disclosed.Type: ApplicationFiled: October 25, 2016Publication date: February 9, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Li Wang, Xiang-Ming He, Shao-Jun Liu, Jian-Li Zhang, Jing Luo, Yu-Ming Shang, Jian-Jun Li, Jian Gao, Yumei Ren, Hong-Sheng Zhang
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Publication number: 20170040611Abstract: A method for making a cathode active material of a lithium ion battery is disclosed. In the method, LiMPO4 particles and LiNPO4 particles are provided. The LiMPO4 particles and LiNPO4particles both are olivine type crystals belonged to a pnma space group of an orthorhombic crystal system, wherein M represents Fe, Mn, Co, or Ni, N represents a metal element having a +2 valence, and N is different from M. The LiMPO4 particles and the LiNPO4 particles are mixed together to form a precursor. The precursor is calcined to form LiMxN1-xPO4 particles, wherein 0<x<1.Type: ApplicationFiled: August 22, 2016Publication date: February 9, 2017Applicants: JIANGSU HUADONG INSTITUTE OF LI-ION BATTERY CO., LTD., TSINGHUA UNIVERSITYInventors: Zhong-Jia Dai, Xiang-Ming He, Li Wang, Jian-Jun Li, Yu-Ming Shang, Jian Gao, Yao-Wu Wang
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Patent number: 9564637Abstract: A method for making a lithium battery cathode composite is provided. A mixed solution including a solvent, an iron salt, and a phosphate is provided. An alkaline solution is added in the mixed solution until the mixed solution has a pH value in a range from about 1.5 to about 5. The mixed solution is stirred to react the iron salt with the phosphate to form a number of iron phosphate precursor particles. The iron phosphate precursor particles are heated. A lithium source solution, a reducing agent, and the iron phosphate precursor particles are mixed to form a lithium iron phosphate precursor slurry. Outer surfaces of the lithium vanadium phosphate particles are coated with the lithium iron phosphate precursor.Type: GrantFiled: April 9, 2013Date of Patent: February 7, 2017Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Gai Yang, Chang-Yin Jiang, Jian Gao, Jie-Rong Ying, Jian-Jun Li, Xiang-Ming He