公开(公告)号：US20230089884A1

公开(公告)日：2023-03-23

申请号：US17993893

申请日：2022-11-24

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  JIANGSU FENGCHI CARBON-BASED NEW MATERIALS RESEARCH INSTITUTE CO., LTD.

Inventor： FENG LIANG ,  Minjie Hou ,  Da Zhang ,  Tao Zhang ,  Sunzu Xiang ,  Wenlong Jiang ,  Baoqiang Xu ,  Bin Yang

IPC: H01M10/0565

Abstract: The present disclosure discloses a method for plasma modification of sodium super ionic conductor type solid electrolyte, which comprises: dielectric barrier discharge plasma modification of sodium super ionic conductor solid electrolyte particles to obtain activated sodium super ionic conductor solid electrolyte particles; weigh the polymer and the activated sodium super ionic conductor solid electrolyte particles in a predetermined proportion, dissolve the polymer and the activated sodium super ionic conductor solid electrolyte particles in an organic solvent to obtain a mixed solution, then pour the mixed solution into a preset mold, and then dry it to remove the organic solvent and form a composite solid electrolyte film. The composite solid electrolyte film is taken out of the mold and rolled to obtain the composite solid electrolyte film after rolling treatment.

公开(公告)号：US11370663B1

公开(公告)日：2022-06-28

申请号：US17548606

申请日：2021-12-13

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Feng Liang ,  Zhipeng Xie ,  Zhenggang Tang ,  Xiecheng Yang ,  Da Zhang ,  Minjie Hou ,  Yao Kang ,  Bin Yang ,  Yongnian Dai

IPC: C01B32/18 ,  H01M10/0525 ,  H01M4/583 ,  H01M10/54

Abstract: The present disclosure relates to a method for production of nitrogen-doped single wall carbon nanohorns from anode graphite of wasted lithium-ion batteries. The method includes the following steps: a first step: forming recycled graphite powder into graphite blocks; and, a second contact step: when the first step is completed, using a DC arc plasma device to produce the graphite blocks into N-SWCNHs.

公开(公告)号：US12230799B1

公开(公告)日：2025-02-18

申请号：US18816719

申请日：2024-08-27

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Feng Liang ,  Pan Liu ,  Minjie Hou ,  Da Zhang ,  Bin Yang

IPC: H01M4/583 ,  H01M4/02 ,  H01M4/04 ,  H01M10/054

Abstract: A method for preparing a carbon nanotube sodiophilic metal anode-free sodium metal battery electrode material is provided, and the method includes the following steps: the carbon nanotubes are modified by a dielectric barrier plasma device; the modified carbon nanotubes are mixed and stirred with a sodiophilic metal salt to obtain a precursor slurry; the precursor slurry is dried, placed in a tube furnace after drying, and heated by introducing a reducing gas to react, thereby obtaining a carbon nanotube sodiophilic metal anode-free sodium metal battery electrode material. The electrode material prepared by the method has a stable structure, excellent electrical conductivity, and excellent sodium affinity, and can be applied to anode-free sodium metal battery electrode materials. The entire preparation process is controllable, the synthesis cycle is short, and the operation is simple.

公开(公告)号：US12051776B2

公开(公告)日：2024-07-30

申请号：US18537953

申请日：2023-12-13

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  JIANGSU FENGCHI CARBON BASED NEW MATERIAL RESEARCH INSTITUTE CO., LTD

Inventor： Feng Liang ,  Minjie Hou ,  Da Zhang ,  Tao Zhang ,  Sunzu Xiang ,  Wenlong Jiang ,  Baoqiang Xu ,  Bin Yang

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/0068

Abstract: A method for preparing a sodium super ionic conductor solid electrolyte by low-dimensional crystallization belongs to a field of energy materials. The method is based on the theory of negative ion coordination polyhedron growth unit, and uses low-temperature plasma as a protective gas of a spray drying equipment. While evaporating the solvent in a sodium super ionic conductor solid electrolyte precursor slurry, plasma active groups modify the particle surface of the sodium super ionic conductor solid electrolyte precursor particles in-situ. A free space dimension of crystal growth in the crystallization process is reduced, and directional growth of crystals in the solid phase sintering process is induced. Secondly, the dispersion stability of the sodium super ionic conductor solid electrolyte precursor particles is improved. Compared with the traditional high-temperature solid-state sintering process, the method has the advantages of fast crystallization speed, high crystal purity and integrity, good compactness, and uniform particles.

公开(公告)号：US11817552B2

公开(公告)日：2023-11-14

申请号：US17993893

申请日：2022-11-24

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  JIANGSU FENGCHI CARBON-BASED NEW MATERIALS RESEARCH INSTITUTE CO., LTD.

Inventor： Feng Liang ,  Minjie Hou ,  Da Zhang ,  Tao Zhang ,  Sunzu Xiang ,  Wenlong Jiang ,  Baoqiang Xu ,  Bin Yang

IPC: H01M10/0565

CPC classification number: H01M10/0565 ,  H01M2300/0082

Abstract: The present disclosure discloses a method for plasma modification of sodium super ionic conductor type solid electrolyte, which comprises: dielectric barrier discharge plasma modification of sodium super ionic conductor solid electrolyte particles to obtain activated sodium super ionic conductor solid electrolyte particles; weigh the polymer and the activated sodium super ionic conductor solid electrolyte particles in a predetermined proportion, dissolve the polymer and the activated sodium super ionic conductor solid electrolyte particles in an organic solvent to obtain a mixed solution, then pour the mixed solution into a preset mold, and then dry it to remove the organic solvent and form a composite solid electrolyte film. The composite solid electrolyte film is taken out of the mold and rolled to obtain the composite solid electrolyte film after rolling treatment.