Patents by Inventor Xuemei Zhang

Xuemei 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).

  • Publication number: 20240034625
    Abstract: A preparation method of nano-scaled iron phosphate, includes the steps of: adding a surfactant and a polymer microsphere to an iron salt solution to obtain a mixed liquid; adding a phosphate solution to the mixed liquid for reaction to obtain an iron phosphate slurry; performing solid-liquid separation after removing the polymer microsphere from the iron phosphate slurry, drying and calcining the obtained solid to obtain a nano-scaled iron phosphate.
    Type: Application
    Filed: December 30, 2021
    Publication date: February 1, 2024
    Applicants: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP VEHICLES RECYCLING CO., LTD.
    Inventors: Haijun YU, Yinghao XIE, Aixia LI, Xuemei ZHANG, Changdong LI
  • Publication number: 20240033788
    Abstract: A reaction kettle cleaning apparatus, includes a kettle body and a stirrer, the stirrer being located in the kettle body and including a stirring rod and a stirring portion, where a movable frame is disposed on the stirring rod and is movable along the stirring rod; and a cleaning device is disposed on the movable frame and is configured to clean the kettle body; and the reaction kettle cleaning apparatus further includes a movable control apparatus configured to control the movable frame to move.
    Type: Application
    Filed: December 30, 2021
    Publication date: February 1, 2024
    Applicants: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP VEHICLES RECYCLING CO., LTD.
    Inventors: Haijun YU, Aixia LI, Yinghao XIE, Xuemei ZHANG, Kang CHEN, Changdong LI
  • Publication number: 20240033554
    Abstract: A fire extinguishing agent capable of extinguishing aluminum slag combustion, includes the following raw materials: sulfate, chloride salt, a mineral, silca gel, a surfactant and sterate.
    Type: Application
    Filed: December 30, 2021
    Publication date: February 1, 2024
    Applicants: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP VEHICLES RECYCLING CO., LTD.
    Inventors: Haijun YU, Yingsheng ZHONG, Yinghao XIE, Changdong LI, Xuemei ZHANG
  • Publication number: 20240038993
    Abstract: A doped sodium vanadium phosphate and a preparation method and application thereof. Preparation steps of a nitrogen-doped peony-shaped molybdenum oxide in raw materials of the doped sodium vanadium phosphate are as follows: adding a regulator into a molybdenum-containing solution for reaction, concentrating and thermal treatment to obtain a peony-shaped molybdenum oxide; and dissolving the peony-shaped molybdenum oxide in a conditioning agent, and adding an amine source for standing, centrifuging, washing and heat treatment, thus obtaining the nitrogen-doped peony-shaped molybdenum oxide.
    Type: Application
    Filed: August 12, 2022
    Publication date: February 1, 2024
    Applicants: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP EV RECYCLING CO., LTD.
    Inventors: Haijun YU, Yingsheng ZHONG, Aixia LI, Yinghao XIE, Xuemei ZHANG, Changdong LI
  • Publication number: 20240034639
    Abstract: Disclosed are a nickel-iron wet treatment method and an application thereof. The treatment method comprises: in a high-pressure oxygen environment, mixing a crushed nickel-iron material, sulphuric acid and a corrosion aid, performing an acid leaching reaction, then performing solid-liquid separation on slurry subjected to acid leaching, adding an oxidant into the obtained filtrate, performing heating, removing the corrosion aid, adding a precipitating agent into the filtrate, controlling the pH value of the filtrate, and performing solid-liquid separation to obtain a ferric hydroxide precipitate and a nickel-containing filtrate; and performing extraction and back extraction on the nickel-containing filtrate to prepare battery-grade nickel sulphate.
    Type: Application
    Filed: June 6, 2022
    Publication date: February 1, 2024
    Inventors: Haijun YU, Yinghao XIE, Aixia LI, Xuemei ZHANG, Changdong LI
  • Publication number: 20240035116
    Abstract: Disclosed in the present invention is a method for extracting valuable metal from low-matte nickel converter slag. The method comprises: mixing low-matte nickel converter slag and quicklime then calcinating, obtaining a calcinated material; grinding and magnetically separating the calcinated material, obtaining silicate and iron-rich slag; adding a strong alkali solution to the iron-rich slag to perform leaching processing, and performing solid-liquid separation, obtaining a filtrate and a residue; mixing the residue with an acid solution, performing oxygen pressure acid leaching, and performing solid-liquid separation, obtaining a leachate and iron oxide; introducing hydrogen sulfide gas into the leachate, adjusting the pH, and performing solid-liquid separation, obtaining a copper sulfide precipitate and a nickel-cobalt-containing filtrate.
    Type: Application
    Filed: June 6, 2022
    Publication date: February 1, 2024
    Inventors: Haijun YU, Yinghao XIE, Aixia LI, Xuemei ZHANG, Changdong LI
  • Publication number: 20240030509
    Abstract: A method for removing impurities from a waste lithium battery safely through pyrolysis. The method may include: (1) performing primary roasting on electrode fragments of a waste lithium battery, quenching, and then layered screening to obtain a current collector fragment and an electrode material; (2) mixing and grinding the electrode material and a grinding aid, soaking the mixture in an alkali liquor, filtering and taking out filter residues to obtain electrode powder, and (3) performing secondary roasting on the electrode powder to obtain a positive electrode material.
    Type: Application
    Filed: December 30, 2021
    Publication date: January 25, 2024
    Applicants: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP VEHICLES RECYCLING CO., LTD.
    Inventors: Haijun YU, Yingsheng ZHONG, Yinghao XIE, Xuemei ZHANG, Changdong LI
  • Publication number: 20240017249
    Abstract: Disclosed is a PLGlu-SS-lithium ion-sieve composite, preparation method and use thereof. The PLGlu-SS-lithium ion-sieve composite includes an H3LiMnTi4O12 lithium ion-sieve and poly-?-glutamic acid (?-PGA) compounded with the H3LiMnTi4O12 lithium ion-sieve, where a terminal amino group of the ?-PGA is linked to a disulfide bond-containing group. In the present disclosure, the H3LiMnTi4O12 lithium ion-sieve is used as a support structure with sufficient strength support, high structural stability, and excellent cycling performance; the pores and surface of the H3LiMnTi4O12 lithium ion-sieve both are bonded with PLGlu-SS. At a low pH, PLGlu-SS is protonated and folded to form?-helix, and at a high pH, PLGlu-SS is deprotonated and extended. Thus, under alkaline adsorption and acidic desorption, a pore size of the composite can be adjusted to provide large adsorption capacity, high adsorption selectivity, and high adsorption efficiency.
    Type: Application
    Filed: September 12, 2023
    Publication date: January 18, 2024
    Inventors: Aixia Li, Haijun Yu, Yinghao Xie, Xuemei Zhang, Changdong Li
  • Publication number: 20240021902
    Abstract: The present disclosure belongs to the technical field of battery recycling, and discloses a method for recovering an aluminum residue with a controlled particle size, and use thereof. The method includes the following steps: crushing and sieving a positive electrode sheet of a waste power battery, then, crushing at ?198° C. to ?196° C. with addition of liquid nitrogen to obtain a granular material; roasting, cooling, and grinding the granular material, adding water, shaking, settling into layers, and separating the layers to obtain a positive electrode active powder layer, a transition layer, and an aluminum residue particle layer; and shaking the aluminum residue particle layer and the transition layer for a second time, settling into layers, and collecting aluminum residue particles and a positive electrode active powder.
    Type: Application
    Filed: September 27, 2023
    Publication date: January 18, 2024
    Inventors: Haijun Yu, Yingsheng Zhong, Yinghao Xie, Changdong Li, Xuemei Zhang
  • Publication number: 20240018013
    Abstract: The present disclosure discloses a method for preparing nickel sulfate from ferronickel, including: S1: in a high-pressure oxygen environment, mixing crushed ferronickel with sulfuric acid, introducing a carbon monoxide gas to allow a reaction, and conducting solid-liquid separation (SLS) to obtain a filtrate and a filter residue; S2: adding an oxidizing agent and a precipitating agent successively to the filtrate, controlling a pH of the filtrate, and conducting SLS to obtain a nickel-containing filtrate and an iron hydroxide precipitate; and S3: subjecting the nickel-containing filtrate to extraction and back-extraction to obtain a nickel sulfate solution. In the present disclosure, the carbon monoxide gas is introduced under high-pressure acidic conditions to first react with nickel and iron to form nickel tetracarbonyl and iron pentacarbonyl, and the nickel tetracarbonyl and iron pentacarbonyl are oxidized by oxygen and then smoothly react with sulfuric acid to form nickel sulfate and iron sulfate.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 18, 2024
    Applicants: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP EV RECYCLING CO., LTD.
    Inventors: Haijun Yu, Yinghao Xie, Aixia Li, Xuemei Zhang, Changdong Li
  • Publication number: 20240010494
    Abstract: The present disclosure discloses a preparation method of a layered carbon-doped sodium iron phosphate cathode material, including: placing a carbonate powder in an inert atmosphere, introducing a gaseous organic matter, and heating to allow a reaction to obtain a MCO3/C layered carbon material; and mixing the MCO3/C layered carbon material, a sodium source, ferrous phosphate, and a dispersing agent in an inert atmosphere, grinding a resulting mixture, washing and drying to remove the dispersing agent, and heating to allow a reaction in an inert atmosphere to obtain the layered carbon-doped sodium iron phosphate cathode material.
    Type: Application
    Filed: September 25, 2023
    Publication date: January 11, 2024
    Inventors: Haijun Yu, Yingsheng Zhong, Aixia Li, Yinghao Xie, Xuemei Zhang, Changdong Li
  • Publication number: 20240014391
    Abstract: The present disclosure discloses a method for preparing a ternary cathode material with a molten salt and use thereof. The method includes: mixing a nickel salt, a cobalt salt, a manganese salt, a metal oxide and an acid liquor to obtain a mixed salt solution; concurrently adding the mixed salt solution, a sodium hydroxide solution and ammonia water to a base solution to allow a reaction to obtain a precursor; and mixing the precursor, a lithium source and a molten salt, and subjecting a resulting mixture to sintering, water-washing and annealing to obtain the ternary cathode material. In the present disclosure, a bismuth/antimony-doped ternary precursor is prepared, which is sintered with a molten salt, during which bismuth/antimony oxide is melted in the molten salt, then a resulting mixture is washed with water, and annealed to form a coating layer on a surface of the material.
    Type: Application
    Filed: September 22, 2023
    Publication date: January 11, 2024
    Inventors: Haijun Yu, Yinghao Xie, Aixia Li, Xuemei Zhang, Changdong Li
  • Publication number: 20230398092
    Abstract: A Sesquiterpene lactone compound, and a stereoisomer, isotopic marker, solvate and polymorph thereof, or a pharmaceutically acceptable salt thereof can be used in the preparation of drugs for alleviating radiotherapy-induced injuries. The Sesquiterpene lactone compound is applied to assist radiotherapy, can effectively alleviate the radiotherapy-induced injuries, achieves a protection effect on normal cell tissues of a human body.
    Type: Application
    Filed: October 20, 2021
    Publication date: December 14, 2023
    Inventors: Yue CHEN, Dongpo CAI, Shiqi BAO, Xuemei ZHANG, Jing CHEN, Jianmiao GONG, Jianshuang GUO, Jing LI
  • Publication number: 20230399240
    Abstract: Disclosed in the present invention is a method for preparing nickel sulfate from a nickel-iron-copper alloy. The method comprises: in a high-pressure oxygen environment, mixing a nickel-iron-copper alloy crushed material, aqueous ammonia, ammonium sulphate, and a corrosion assisting agent, leaching, then performing solid-liquid separation on the leached slurry, adding a precipitant into a filtrate, and performing ammonia distillation to obtain a nickel-containing leachate; then adding an extractant into the nickel-containing leachate to extract nickel so as to obtain a nickel-containing extraction organic phase; and then adding sulfuric acid into the nickel-containing extraction organic phase to perform back extraction of nickel so as to obtain a nickel sulfate solution.
    Type: Application
    Filed: June 6, 2022
    Publication date: December 14, 2023
    Inventors: Haijun YU, Yinghao XIE, Aixia LI, Xuemei ZHANG, Changdong LI
  • Publication number: 20230395795
    Abstract: The present disclosure discloses a preparation method and use of a high-performance modified lithium-nickel-manganese-cobalt oxide (LNMCO) nickel 55 material. In the preparation method of the present disclosure, a silica template-containing nano-precursor coated with a polymer is prepared by electrospinning, and then the nano-precursor is sintered in the air to effectively provide effective embedding and attachment sites for subsequent nickel plating; and after the nickel plating, the silica template is removed such that distributed mesopores are generated in situ on the precursor. The mesopores provide channels for the subsequent penetration of molten lithium into the interior of the precursor material. A final prepared material has a better ion and electron conduction structure compared with traditional granular materials. The present disclosure also discloses a material prepared by the method. The present disclosure also discloses an LIB including the high-performance modified LNMCO nickel 55 material.
    Type: Application
    Filed: August 16, 2023
    Publication date: December 7, 2023
    Inventors: Yinghao Xie, Jianxiao Tang, Xuemei Zhang, Yannan Ou, Banglai Ming, Haijun Yu, Changdong Li
  • Publication number: 20230382761
    Abstract: The present disclosure discloses a preparation method of tungsten-doped cobalt tetraoxide and use thereof. The preparation method includes the following steps: dissolving a tungsten-containing compound and a molybdenum-containing compound in an alkali liquid to obtain a mixed solution; concurrently feeding the mixed solution, a cobalt salt solution, and a complexing agent into a base solution to allow a reaction to obtain a precipitate; roasting the precipitate in an oxygen-containing atmosphere to obtain a roasted material; and soaking the roasted material in a sodium sulfide solution to obtain the tungsten-doped cobalt tetraoxide. In the present disclosure, tungsten is doped, and tungsten has a large atomic radius, which stabilizes an internal structure of the material, expands the ion channel, and improves the cycling performance of the material; and molybdenum is removed through a soaking process, which provides atomic vacancies to further improve a specific capacity of the material.
    Type: Application
    Filed: August 14, 2023
    Publication date: November 30, 2023
    Inventors: Haijun Yu, Yinghao Xie, Aixia Li, Xuemei Zhang, Changdong Li
  • Publication number: 20230382805
    Abstract: The present disclosure discloses a sintering-resistant material, and a preparation method and use thereof. The sintering-resistant material includes magnesium oxide, an anti-corrosive agent, an antioxidant, and a binder, where the anti-corrosive agent includes a barite powder and a porous graphite powder; the antioxidant includes aluminum carbide and an aluminum powder; the binder includes a metal chloride and a silica sol; and metals in the raw materials are all extracted from a hydrochloric acid leachate of an electric furnace slag. In the present disclosure, the preparation method of the present disclosure improves the resource utilization of the electric furnace slag. Magnesium and aluminum have the largest proportion among metal elements in the electric furnace slag, and thus magnesium oxide is used as the main material. In addition, other chloride salts leached out from the electric furnace slag by hydrochloric acid can be directly or indirectly used.
    Type: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Inventors: Haijun Yu, Yingsheng Zhong, Aixia Li, Yinghao Xie, Xuemei Zhang
  • Patent number: 11826729
    Abstract: Disclosed are a photocatalyst and application thereof in environmentally friendly photocatalytic treatment of a power battery. The photocatalyst is obtained by loading Ag—TaON on a hollow glass microsphere, wherein a mass ratio of the Ag—TaON to the hollow glass microsphere is 1:5 to 10. According to the invention, the Ag—TaON and the hollow glass microsphere are compounded, the hollow glass microsphere has better light permeability, which avoids mutual shielding between catalysts, such that the photocatalyst filled in a reactor is fully excited, which is capable of effectively improving a light utilization rate, thus improving the catalytic conversion efficiency of the photocatalyst.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: November 28, 2023
    Assignees: Guangdong Brunp Recycling Technology Co., Ltd., Hunan Brunp Recycling Technology Co., Ltd., Hunan Brunp EV Recycling Co., Ltc.
    Inventors: Haijun Yu, Ting Peng, Yinghao Xie, Xuemei Zhang
  • Publication number: 20230348274
    Abstract: Disclosed are a silicon-doped graphene composite material and a preparation method and application thereof. The silicon-doped graphene composite material comprises silicon and graphene; the silicon is doped in the graphene. The silicon-doped graphene composite material of the present disclosure has excellent charge and discharge capacity and structural stability; the silicon-doped graphene composite material is based on the graphene structure, with silicon atoms replacing the carbon atoms in a two-dimensional network structure of the graphene. The silicon-doped graphene composite material of the present disclosure has a layered structure similar to graphite materials, but is superior to other graphene materials in charge and discharge capacity, which is due to the fact that lithium intercalation sites are constructed by the silicon doped sites.
    Type: Application
    Filed: June 30, 2023
    Publication date: November 2, 2023
    Applicants: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP EV RECYCLING CO., LTD.
    Inventors: Haijun Yu, Ting Peng, Yinghao Xie, Xuemei Zhang
  • Publication number: 20230346742
    Abstract: A sesquiterpene lactone compound is used in preparing a drug for treating optic neuritis. The sesquiterpene lactone compound and a pharmaceutically acceptable auxiliary material are prepared into a drug. ACT001 can effectively inhibit the inflammatory response of microglia, and can significantly reduce the release of inflammatory factors, comprising NO, TNF-?, and IL-6. It has the effect of inhibiting the proliferation of BV2 cells and curative effects on optic neuritis, particularly neuromyelitis optica.
    Type: Application
    Filed: August 28, 2020
    Publication date: November 2, 2023
    Inventors: Hongen LI, Jianmiao GONG, Shiqi BAO, Xuemei ZHANG