公开(公告)号：US11616225B2

公开(公告)日：2023-03-28

申请号：US16355454

申请日：2019-03-15

申请人： OneD Material LLC

发明人： Wanqing Cao ,  Virginia Robbins ,  Yimin Zhu

IPC分类号： H01M4/36 ,  C30B29/60 ,  C01B33/029 ,  B01J21/18 ,  B01J23/72 ,  B01J37/02 ,  C01B33/02 ,  C30B11/12 ,  H01M4/134 ,  C01B33/021 ,  C30B25/00 ,  C30B29/06 ,  H01M4/04 ,  H01M4/38 ,  H01M4/62

摘要： Methods for producing nanostructures from copper-based catalysts on porous substrates, particularly silicon nanowires on carbon-based substrates for use as battery active materials, are provided. Related compositions are also described. In addition, novel methods for production of copper-based catalyst particles are provided. Methods for producing nanostructures from catalyst particles that comprise a gold shell and a core that does not include gold are also provided.

公开(公告)号：US11554417B2

公开(公告)日：2023-01-17

申请号：US16681321

申请日：2019-11-12

申请人： GM Global Technology Operations LLC

发明人： Zhongyi Liu ,  Bin Hu ,  Xiaosong Huang ,  Wayne Cai

IPC分类号： B22F9/08 ,  H01M4/38 ,  B22F9/10 ,  B01J2/02 ,  C01B33/02

摘要： A multistage centrifugal atomizer comprises an outer shell that contains an inlet port and an outlet port and that encloses a tundish, a first inclined rotating surface and a second inclined rotating surface. The first inclined rotating surface is opposedly disposed to the second inclined rotating surface. The inlet is used to introduce a molten material into the multistage atomizer and the outlet is used to remove ultrafine particles having a D50 of less than 20 micrometers.

公开(公告)号：US11450849B2

公开(公告)日：2022-09-20

申请号：US16437199

申请日：2019-06-11

申请人： Umicore

发明人： Nicolas Marx ,  Stijn Put ,  Jean-Sébastien Bridel ,  Boaz Moeremans

IPC分类号： H01M4/38 ,  C01B33/02 ,  H01M4/02

摘要： An active material powder for use in a negative electrode of a battery, wherein the active material powder comprises active material particles, wherein the active material particles comprise silicon-based particles, wherein when said active material powder is crossed by a plane, then at least 65% of the discrete cross-sections of the silicon-based particles included in that plane, satisfy optimized conditions of shape and size, allowing the battery containing such an active material powder to achieve a superior cycle life and a production method of such an active material powder.

公开(公告)号：US20220259050A1

公开(公告)日：2022-08-18

申请号：US17433547

申请日：2020-10-22

申请人： KOREA METAL SILICON CO., LTD.

发明人： Jong Oh CHOI ,  Min Sun KIM ,  Jong Sik YOO

IPC分类号： C01B33/02 ,  C01B32/05 ,  C01B32/21

摘要： Provided is a method of preparing a silicon composite. The method of preparing a silicon composite includes forming a silicon solution by wet-grinding a silicon raw material; forming silicon fine powder by spray-drying the silicon solution; disintegrating the silicon fine powder; forming a dispersion by coating the silicon fine powder with a first pitch; forming a first composite by coating the dispersion with a second pitch; forming a second composite by carbonizing the first composite; and classifying the second composite according to a preset particle size reference.

公开(公告)号：US20220169863A1

公开(公告)日：2022-06-02

申请号：US17194148

申请日：2021-03-05

申请人： KREMENAK NANOTECH, INC.

发明人： Jesse KREMENAK

IPC分类号： C09C1/28 ,  C01B33/02 ,  C09C3/04 ,  C09C3/06

摘要： The present disclosure provides functionalized powder particles and methods of forming functionalized powder particles. The functionalization is acquired through the formation of primary and/or secondary structures on a powder particle. Functionalization can be controlled to bring about changes in a broad range of physical and/or chemical properties.

公开(公告)号：US20220155473A1

公开(公告)日：2022-05-19

申请号：US17598364

申请日：2020-03-17

申请人： Oxford Instruments Technologies Oy

发明人： Zhengjung Liu ,  Nikolai Chekurov

IPC分类号： G01T7/00 ,  C01B33/02 ,  C01B32/05 ,  C01B33/20

摘要： According to an example aspect of the present invention, there is provided a radiation window manufacturing method, comprising patterning a mask on a top surface of a bulk wafer or compound wafer, etching the bulk or compound wafer from the top surface, based on the mask, either by timed etching of the bulk wafer, or until an inner insulator layer of the compound wafer, thereby generating recesses in the bulk or compound wafer, filling the recesses, at least partly, with a filling material, polishing the top surface of the bulk or compound wafer, and providing a membrane layer on the polished top surface, and etching the bulk or compound wafer from a bottom surface, opposite the top surface, to build a supporting structure for the membrane layer in accordance with a shape defined by the mask.

公开(公告)号：US11322741B2

公开(公告)日：2022-05-03

申请号：US16498699

申请日：2018-04-05

申请人： ELKEM ASA

发明人： Jarl Erik Morsund Flatoy ,  Harry Morten Rong ,  Torbjorn Roe

IPC分类号： H01B1/04 ,  H01M4/00 ,  C01B33/02 ,  H01M4/38 ,  B02C23/20 ,  C01B33/037 ,  H01M10/0525 ,  B03B5/62 ,  H01M4/02

摘要： The present invention relates to a silicon powder, where the size of the silicon powder particles are between 3 and 30 μm, a particle size fraction D10 of the silicon powder particles is between 3 and 9 μm, and where the silicon powder particles have no, or substantially no, silicon particles with a size smaller than D10 attached to the surface. The silicon powder according to the present invention is produced by wet classifying produced silicon powders.

公开(公告)号：US20220059842A1

公开(公告)日：2022-02-24

申请号：US16847952

申请日：2020-04-14

申请人： UChicago Argonne, LLC

发明人： Zhengcheng Zhang ,  Sisi Jiang

IPC分类号： H01M4/60 ,  H01M4/137 ,  H01M10/0525 ,  C01B33/02 ,  H01M10/054

摘要： A composition includes a silicon nanoparticle having surface-attached groups, and the silicon nanoparticle is represented by the formula: [Si]-[linker]-[terminal group]. In the formula [Si] represents the surface of the silicon nanoparticle; [terminal group] is a moiety that is configured for further reaction or is compatible with the electrolyte; and [linker] is a group linking the surface of the silicon nanoparticle to the [terminal group].

公开(公告)号：US11196037B2

公开(公告)日：2021-12-07

申请号：US16821072

申请日：2020-03-17

申请人： ENEVATE CORPORATION

发明人： Benjamin Yong Park ,  Alexander Gorkovenko ,  Rabih Bachir Zaouk ,  William Hubert Schank ,  Genis Turon Teixidor ,  Lothar Steffens

IPC分类号： H01M4/134 ,  H01M4/36 ,  B29C48/08 ,  B29C48/91 ,  B29C48/154 ,  B29C48/88 ,  H01M4/38 ,  H01M4/62 ,  C01B33/021 ,  C01B32/00 ,  C01B33/02 ,  H01M4/04 ,  H01M10/0525 ,  B28B3/02 ,  C04B35/515 ,  C04B35/524 ,  C04B35/626 ,  C04B35/64 ,  C04B35/645 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/587 ,  C01B32/05 ,  H01M4/02

摘要： Silicon particles for active materials and electro-chemical cells are provided. The active materials comprising silicon particles described herein can be utilized as an electrode material for a battery. In certain embodiments, the composite material includes greater than 0% and less than about 90% by weight of silicon particles. The silicon particles have an average particle size between about 0.1 μm and about 30 μm and a surface including nanometer-sized features. The composite material also includes greater than 0% and less than about 90% by weight of one or more types of carbon phases. At least one of the one or more types of carbon phases is a substantially continuous phase.

公开(公告)号：US20210347643A1

公开(公告)日：2021-11-11

申请号：US16943368

申请日：2020-07-30

申请人： Nanostar Inc.

发明人： Gregory Alan Marus ,  Jonathan Goodman ,  Meysam Shahami

IPC分类号： C01B33/02 ,  H01M10/0525 ,  H01M4/38

摘要： The formation of amorphous silicon for use in, for example, lithium-ion batteries is disclosed. The process can include milling a plurality of silicon nanocrystals having an average particle diameter and a percent crystallinity greater than about 60%, in a unit designed to reduce the average particle diameter to the same or a larger size, thereby forming a plurality of amorphous silicon nanoparticles having about the same average particle diameter as the silicon nanocrystals and a percent crystallinity of less than about 50%.