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1.发明公开公开(公告)号：US20240351911A1
公开(公告)日：2024-10-24
申请号：US18682434
申请日：2022-04-29
申请人： GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP EV RECYCLING CO., LTD.
发明人： Bin Li , Changdong Li , Weijian Liu , Xingyu Wu , Dingshan Ruan , Yong Cai
IPC分类号： C01G51/00
CPC分类号： C01G51/50 , C01P2004/03 , C01P2004/51 , C01P2004/61 , C01P2006/40 , C01P2006/80
摘要： Disclosed in the present invention is a method for surface modification of a lithium transition metal oxide positive electrode material, including: adding a first additive, a second additive, and a lithium transition metal oxide to water to obtain a first slurry, the first additive being a lithium-containing phosphate, and the second additive being an acidic solution of a Y3+ or Al3+ salt; dropwise adding a third additive to the firs slurry to obtain a second slurry, the third additive being an acidic solution of a TiO2+ or ZrO2+ salt; dropwise adding a fourth additive to the second slurry to obtain a third slurry, the fourth additive being an acidic solution of a AlO2− salt; and performing centrifugation and drying on the third slurry to obtain an intermediate product, mixing the intermediate product with a large-particle positive electrode material, and performing sintering to obtain a surface-modified lithium transition metal oxide material.
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2.发明公开公开(公告)号：US20240342681A1
公开(公告)日：2024-10-17
申请号：US18682107
申请日：2022-12-01
申请人： GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP EV RECYCLING CO., LTD.
发明人： Haijun Yu , Aixia Li , Yinghao Xie , Xuemei Zhang , Zhixu Lu
IPC分类号： B01J20/02 , B01J20/28 , B01J20/32 , C02F1/28 , C02F101/20
CPC分类号： B01J20/0251 , B01J20/28004 , B01J20/28059 , B01J20/28073 , B01J20/3204 , B01J20/3217 , B01J20/3236 , B01J20/3291 , C02F1/288 , C02F1/281 , C02F2101/206
摘要： The present disclosure discloses a silicon-aluminum-iron composite material and a preparation method therefor and use thereof, and belongs to the technical field of wastewater treatment. The silicon-aluminum-iron composite material comprises an inner core and an outer shell wrapping the inner core; the inner core is a silicon-aluminum-based hollow sphere; the outer shell contains iron element; and there are holes on the silicon-aluminum-iron composite material. The silicon-aluminum-iron composite material of the present disclosure improves the specific surface area of the silicon-aluminum-iron composite material through structural adjustment. When it is used to adsorb heavy metal ions, the adsorption sites are correspondingly increased, which finally improves the adsorption capacity for heavy metal ions.
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公开(公告)号：US12113215B2
公开(公告)日：2024-10-08
申请号：US18555558
申请日：2022-07-29
申请人： GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP EV RECYCLING CO., LTD.
发明人： Haijun Yu , Yinghao Xie , Aixia Li , Xuemei Zhang , Changdong Li
CPC分类号： H01M4/58 , C01C3/12 , C01P2004/03 , C01P2006/40 , H01M2004/028
摘要： Disclosed is a preparation method for a Prussian blue sodium-ion battery positive electrode material, comprising: adding a first nonionic surfactant and an antioxidant into a sodium ferrocyanide solution to obtain a first solution; adding a second nonionic surfactant into a transition metal salt solution to obtain a second solution; in a protective atmosphere, adding the second solution into the first solution for a precipitation reaction; aging after the reaction has finished; collecting a precipitate, washing same, and carrying out vacuum drying on the washed precipitate; then soaking same in an alcohol solution containing sodium alkoxide; and then filtering same and steam drying to obtain a Prussian blue sodium ion battery positive electrode material. The method may relieve vacuum drying pressure and shorten drying time.
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4.发明公开公开(公告)号：US20240327239A1
公开(公告)日：2024-10-03
申请号：US18558156
申请日：2022-09-22
发明人： Zhenqi FANG , Changdong LI , Genghao LIU , Dingshan RUAN , Qianqian SHI
IPC分类号： C01G53/00
CPC分类号： C01G53/44 , C01P2004/03 , C01P2006/12 , C01P2006/40
摘要： The present disclosure discloses a method for preparing a ternary cathode precursor material with low sulfur content and high specific surface area, and belongs to the field of lithium ion battery materials. In the present disclosure, by using a continuous filter with a spraying device for concentrating a reaction material, sulfur impurities can be uniformly removed in a reaction stage, and neither are the reaction environment and the production efficiency affected, nor does introduction of new impurities occur. In addition, by removing the mother liquor by means of negative pressure suction filtration, the material can be oxidized uniformly in a controlled manner, and the specific surface area of the ternary cathode precursor material is uniformly increased, so that during sintering, lithium ions more easily enter the interior of particles of the ternary cathode precursor material, thus exerting a higher capacity.
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公开(公告)号：US12107245B2
公开(公告)日：2024-10-01
申请号：US18284764
申请日：2022-09-28
发明人： Haijun Yu , Yinghao Xie , Aixia Li , Changdong Li
CPC分类号： H01M10/54 , C01G49/009 , C22B1/02 , C22B7/007
摘要： The disclosure discloses a method for recycling a lithium iron phosphate waste battery, and belongs to the technical field of battery recycling. In the method for recycling the lithium iron phosphate waste battery according to the disclosure, it takes a cathode material of the waste lithium iron phosphate battery as a main body, uses a lithium source, a ferric source and a phosphorus source to supplement lithium to the cathode material for repairing, and meanwhile, rebuilds a new lithium iron phosphate coating layer containing a carbon layer cross-linked structure on a surface of the cathode material to realize regeneration of the lithium iron phosphate The disclosure also provides a regenerated lithium iron phosphate/C cathode material prepared by the recycling method.
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公开(公告)号：US20240274907A1
公开(公告)日：2024-08-15
申请号：US18284764
申请日：2022-09-28
发明人： Haijun YU , Yinghao XIE , Aixia LI , Changdong LI
CPC分类号： H01M10/54 , C01G49/009 , C22B1/02 , C22B7/007
摘要： The disclosure discloses a method for recycling a lithium iron phosphate waste battery, and belongs to the technical field of battery recycling. In the method for recycling the lithium iron phosphate waste battery according to the disclosure, it takes a cathode material of the waste lithium iron phosphate battery as a main body, uses a lithium source, a ferric source and a phosphorus source to supplement lithium to the cathode material for repairing, and meanwhile, rebuilds a new lithium iron phosphate coating layer containing a carbon layer cross-linked structure on a surface of the cathode material to realize regeneration of the lithium iron phosphate The disclosure also provides a regenerated lithium iron phosphate/C cathode material prepared by the recycling method.
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公开(公告)号：US20240270613A1
公开(公告)日：2024-08-15
申请号：US18557963
申请日：2023-03-15
发明人： Qi YUAN , Yali QIU , Yongqi LIU , Genghao LIU , Qinxue GONG , Changdong LI
IPC分类号： C02F1/56 , C02F1/00 , C02F1/52 , C02F1/66 , C02F9/00 , C02F101/18 , C02F101/20 , C02F101/34
CPC分类号： C02F1/56 , C02F1/001 , C02F1/5236 , C02F1/66 , C02F9/00 , C02F2001/007 , C02F2101/18 , C02F2101/203 , C02F2101/34 , C02F2301/08
摘要： Provided is a treatment method of waste water containing ferricyanide complex and oxalate, comprising under the condition of weak acidity to weak alkalinity, firstly adding an appropriate amount of divalent manganese ions to make the divalent manganese ions combined with ferrocyanide ions and part of oxalate ions in wastewater to form a mixed slag mainly composed of manganese ferrocyanide to achieve the purpose of removing most of the cyanide and a small amount of organic substance; adding excess divalent manganese ions to the first filtrate to make the divalent manganese ions fully combined with the oxalate in the wastewater to achieve the purpose of removing organic substance, and then adding an appropriate amount of alkali to the second filtrate to form precipitation to achieve the purpose of recovering manganese; then adding an appropriate amount of ferrous salt to achieve the purpose of removing the remaining cyanide and organic substance.
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8.发明公开公开(公告)号：US20240261795A1
公开(公告)日：2024-08-08
申请号：US18565021
申请日：2022-07-15
发明人： Aixia LI , Haijun YU , Changdong LI , Yinghao XIE
IPC分类号： B03C1/28
CPC分类号： B03C1/286 , B03C2201/18 , B03C2201/22
摘要： Disclosed is a separating mechanism for a magnetic foreign matter in a sintering slurry of a lithium ion battery, including a separating machine body; the separating machine body includes an upper cover and a separating cylinder; the upper cover is provided with a driving motor at a top end; a stirring and separating mechanism is arranged in an inner cavity of the separating cylinder; the stirring and separating mechanism includes a planetary gear set, a stirring shaft, a collecting frame, a magnetic guide sleeve and a balancing ring; the planetary gear set includes a gear ring, planetary gears, a sun gear and a connecting plate; one end of the stirring shaft is connected with a central rotating shaft of the planetary gears; the collecting frame is connected with a central rotating shaft of the sun gear; and the magnetic guide sleeve is spirally sleeved on an outer side of the stirring shaft.
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9.发明授权公开(公告)号：US12027682B2
公开(公告)日：2024-07-02
申请号：US18260032
申请日：2022-08-11
申请人： GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP EV RECYCLING CO., LTD.
发明人： Haijun Yu , Jiangdong Chen , Yinghao Xie , Jialei Xu , Benben Wu , Changdong Li
IPC分类号： H01M10/54 , C04B35/622 , C04B35/626
CPC分类号： H01M10/54 , C04B35/62204 , C04B35/62675 , C04B2235/349 , C04B2235/425 , C04B2235/442 , C04B2235/6562 , C04B2235/6567
摘要： A method for preparing a refractory material from waste battery residues. The method comprises the following steps: (1) disassembling waste batteries, then sorting same to obtain positive and negative electrode powders, leaching the positive and negative electrode powders with an acid, filtering same to obtain a graphite slag, and then subjecting the filtrate to copper removal, followed by the addition of an alkali for a precipitation reaction, wherein the resulting precipitate is an iron-aluminum slag; (2) wrapping the graphite slag obtained in step (1) with wet clay to form an inner core material, then mixing wet clay with the iron-aluminum slag, wrapping the inner core material with same, and aging the wrapped inner core material to obtain a blank; (3) pre-sintering, calcining and cooling the blank prepared in step (2) to obtain a fired product; and (4) washing and drying the fired product to obtain the refractory material.
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公开(公告)号：US20240128456A1
公开(公告)日：2024-04-18
申请号：US18284775
申请日：2022-11-11
申请人： GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP EV RECYCLING CO., LTD.
发明人： Xingyu WU , Changdong LI , Maohua FENG , Dingshan RUAN , Bin LI , Baoye LIU
CPC分类号： H01M4/60 , C07F15/065 , H01M2004/021
摘要： The invention belongs to the technical field of material synthesis, and discloses a nitrogen-doped hollow cobaltosic oxide and a preparation method and application thereof. A chemical formula of the nitrogen-doped hollow cobaltosic oxide is Co3O4—COF-T-D@C—N; and the COF-T-D is a covalent organic framework. Due to an open hollow structure, the nitrogen-doped hollow cobaltosic oxide of the invention has a large specific surface area, thus having a large contact area with an electrolyte, which is convenient for lithium ions to transport therein. The open hollow structure also prevents a volume effect from being generated during charging and discharging, and nitrogen is introduced for doping, so that granules can be gradually activated to increase the specific surface area and active sites, a discharge (cycle) stability of the material is improved, and a rate performance of the material is improved.
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