公开(公告)号：US11876209B2

公开(公告)日：2024-01-16

申请号：US18007261

申请日：2021-07-29

申请人： GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. ,  HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. ,  HUNAN BRUNP VEHICLES RECYCLING CO., LTD.

发明人： Bin Li ,  Dingshan Ruan ,  Linlin Mao ,  Shenghe Tang ,  Xingyu Wu ,  Changdong Li

IPC分类号： H01M4/04 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/02

CPC分类号： H01M4/0452 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028

摘要： Disclosed are a pre-lithiated lithium ion positive electrode material, a preparation method therefor and use thereof. The lithium ion positive electrode material has a chemical formula of Li2O/[A(3-x)Mex]1/3-LiAO2, wherein A comprises M, and wherein M is at least one of Ni, Co, and Mn; and wherein Me is at least one of Ni, Mn, Al, Mg, Ti, Zr, Y, Mo, W, Na, Ce, Cr, Zn or Fe; and wherein 0

公开(公告)号：US12043882B2

公开(公告)日：2024-07-23

申请号：US18265373

申请日：2021-12-30

申请人： GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. ,  HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. ,  HUNAN BRUNP VEHICLES RECYCLING CO., LTD.

发明人： Jianfeng Xu ,  Changdong Li ,  Dingshan Ruan ,  Linlin Mao ,  Yulong Liao ,  Ding Yang

IPC分类号： C22C38/00 ,  C22B1/02 ,  C22C22/00

CPC分类号： C22C38/005 ,  C22B1/02 ,  C22C2202/02

摘要： A method for safely oxidising roasting NdFeB powder material. The method may include: S1: magnetizing and drying the NdFeB powder material; S2: heating the magnetized and dried NdFeB powder material to spontaneous combustion, and then preparing the spontaneous combustion product into a powder; and S3: magnetizing and then oxidising roasting the powder to obtain NdFeB oxide.

公开(公告)号：US20230411596A1

公开(公告)日：2023-12-21

申请号：US18229186

申请日：2023-08-02

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 ,  Dingshan Ruan ,  Linlin Mao ,  Maohua Feng ,  Bin Li

IPC分类号： H01M4/1391 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/536 ,  H01M4/131 ,  H01M4/04 ,  H01M50/105

CPC分类号： H01M4/1391 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/105 ,  H01M4/131 ,  H01M4/0416 ,  H01M4/0435 ,  H01M50/536

摘要： The invention belongs to the technical field of batteries, and discloses a preparation method and application of a lithium cobalt oxide soft-pack battery. The preparation method comprises the following steps: preparation of a lithium cobalt oxide positive electrode; preparation of a graphite negative electrode; preparation of an aluminum plastic film; screening and tab welding the positive and negative electrode, then winding core and packing, injecting an electrolyte to a resulting pack, perform first sealing, formation, second sealing; followed by capacity grading to obtain the lithium cobalt oxide soft pack battery. The preparation method for the lithium cobalt oxide soft-pack battery in a laboratory environment at room temperature provided by the present invention has simple operation and low environmental requirements, can be used in laboratories without dry room conditions, and reduces research and development cost and laboratory maintenance cost.

公开(公告)号：US20240014382A1

公开(公告)日：2024-01-11

申请号：US18372711

申请日：2023-09-26

申请人： GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. ,  HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. ,  HUNAN BRUNP EV RECYCLING CO., LTD.

发明人： Xia Fan ,  Changdong Li ,  Zhenhua Zhang ,  Linlin Mao ,  Dingshan Ruan ,  Yong Cai

IPC分类号： H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/54 ,  B09B3/35 ,  B09B3/70

CPC分类号： H01M4/364 ,  H01M4/386 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/54 ,  B09B3/35 ,  B09B3/70 ,  H01M2004/027

摘要： The present disclosure belongs to the technical field of battery materials, and discloses a silicon/carbon composite anode material, and a preparation method and use thereof. The preparation method includes the following steps: S1. dissolving a graphite anode powder in an acid solution, and conducting solid-liquid separation (SLS) to obtain a precipitate; and washing and drying the precipitate, adding a reducing agent, and subjecting a resulting mixture to heat treatment to obtain a purified graphite material; and S2. mixing a modified silicon powder with the graphite material, adding a resulting mixture to a polyimide (PI)-containing N,N-dimethylformamide (DMF) solution, and stirring; and subjecting a resulting mixture to distillation and then to carbonization to obtain the silicon/carbon composite anode material.