公开(公告)号：US20220131125A1

公开(公告)日：2022-04-28

申请号：US17451772

申请日：2021-10-21

申请人： Sila Nanotechnologies Inc.

发明人： Gleb YUSHIN ,  Laura GERBER ,  Matthew CLARK ,  Valentin LULEVICH ,  Mareva FEVRE ,  Eric LACHMAN

IPC分类号： H01M4/04 ,  H01M4/66 ,  H01M4/134 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0525

摘要： In an aspect, a functional, a conformal surface layer coating on an internal surface of pores of a porous substrate may be formed via exposure to gas streams of precursor molecules in an atomic-layer deposition (ALD) reactor. In another aspect, a functional surface layer coating on particles of a powder (or particle powder) may be formed via exposure to gas streams of precursor molecules in an ALD reactor. In another aspect, an ALD reactor system may be configured with mechanisms for supplying gas streams of precursor molecules to form the conformal surface layer(s). In another aspect, the porous electrode(s) and/or particle(s) with the conformal surface coating(s) may be made part of a Li-ion battery cell, which in turn be made part of a Li-ion battery module or Li-ion battery pack.

公开(公告)号：US11312633B2

公开(公告)日：2022-04-26

申请号：US16032683

申请日：2018-07-11

申请人： Evonik Operations GmbH

发明人： Julia Lyubina

IPC分类号： C01B33/035 ,  H01M4/134 ,  H01M4/133 ,  H01M4/36 ,  H01M4/04 ,  C01B32/956 ,  H01M4/587 ,  H01M4/1395 ,  H01M4/38 ,  B82Y40/00 ,  H01M4/1393

摘要： A silicon-carbon composite powder having Si and C distributed throughout each particle is provided. The weight ratio of carbon to silicon on the surface of a particle (C/Si)surface is greater than the weight ratio of carbon to silicon within the total particle (C/Si)total. The silicon-carbon composite powder is produced by simultaneously feeding into a reactor a gaseous stream of a SiH4, Si2H6, Si3H8 and/or organosilane and a gaseous stream of at least one hydrocarbon of ethylene, ethane, propane and acetylene and reacting the streams using plasma enhanced chemical vapor deposition.

公开(公告)号：US20220123281A1

公开(公告)日：2022-04-21

申请号：US17311405

申请日：2019-12-03

申请人： Robert Bosch GmbH

发明人： Harald Bauer ,  Wolfgang Weydanz

IPC分类号： H01M4/1393 ,  H01M4/62

摘要： The present invention relates to a method for producing a precursor material (10) for an electrochemical cell. The method comprises the steps of adding a matrix material (18) to a fluidized bed (40), and adding a carrier medium (48) and a de-agglomerated carbon nanotube material (22) to the fluidized bed (40), so that the carbon nanotube material (22) and the carrier medium (48) is applied to the matrix material (18) and the latter is granulated therewith, wherein the carbon nanotube material (22) has been suspended and de-agglomerated prior to addition to the carrier medium (48), and/or the carbon nanotube material (22) present in de-agglomerated form in the fluidized bed (40) dissolving with the carrier medium (48) in the fluidized bed (40).

公开(公告)号：US20220115644A1

公开(公告)日：2022-04-14

申请号：US17265871

申请日：2020-01-02

申请人： NINGDE AMPEREX TECHNOLOGY LIMITED

发明人： Jia TANG ,  Pengyang FENG ,  Jiali DONG ,  Yuansen XIE

IPC分类号： H01M4/36 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/525 ,  H01M4/62

摘要： An anode including a current collector and an anode active material layer on the current collector are provided. The anode active material layer includes first oriented particles having a first tilt angle θ1 inclined with respect to the direction of the current collector, and second oriented particles having a second tilt angle θ2 inclined with respect to the direction of the current collector. The first tilt angle θ1 and the second tilt angle θ2 are different and both not greater than 70°.

公开(公告)号：US20220115642A1

公开(公告)日：2022-04-14

申请号：US17265275

申请日：2019-10-29

申请人： LG CHEM, LTD.

发明人： Cholong LEE ,  Yun Kyoung KIM

IPC分类号： H01M4/36 ,  H01M4/587 ,  H01M4/58 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/136 ,  H01M4/1397

摘要： A positive electrode active material for a lithium secondary battery, which can improve the performance of the battery by mixing various carbons with positive electrode active material and applying it, and a preparation method thereof and a lithium secondary battery including the same. The positive electrode active material for the lithium secondary battery includes two or more types of active material composites in which sulfur is supported on the carbon materials contained therein, wherein the carbon materials contained in any one of the two or more types of active material composites differ in at least one of the average particle size and shape from the carbon materials contained in another type of active material composites.

公开(公告)号：US11289689B2

公开(公告)日：2022-03-29

申请号：US15966840

申请日：2018-04-30

申请人： UT-BATTELLE, LLC

发明人： Zhijia Du ,  Christopher James Janke ,  Jianlin Li ,  David L. Wood, III ,  Claus Daniel

IPC分类号： H01M4/04 ,  H01M4/13915 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1397 ,  H01M4/62 ,  H01M4/02

摘要： A method of making an electrode includes the step of mixing active material particles, radiation curable resin precursors, and electrically conductive particles to create an electrode precursor mixture. The electrode precursor mixture is electrostatically sprayed onto a current collector to provide an electrode preform. The electrode preform is heated and calendered to melt the resin precursor such that the resin precursor surrounds the active particles and electrically conductive particles. Radiation is applied to the electrode preform sufficient to cure the radiation curable resin precursors into resin.

公开(公告)号：US20220077496A1

公开(公告)日：2022-03-10

申请号：US17472087

申请日：2021-09-10

申请人： Silq Technologies Corporation ,  The Regents of the University of California

发明人： Maher F. EL-KADY ,  Brian T. MCVERRY ,  Ethan RAO ,  Richard B. KANER

IPC分类号： H01M10/0565 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/133

摘要： Provided herein are energy storage devices high energy and power densities, cycle life, and safety. In some embodiments, the energy storage device comprise a non-flammable electrolyte that eliminate and/or reduce fire hazards for improved battery safety, with improved electrode compatibility with electrode materials.

公开(公告)号：US20220077492A1

公开(公告)日：2022-03-10

申请号：US17471146

申请日：2021-09-09

申请人： Youngjoon GIL ,  Hancheol JEONG ,  Sungyong IN

发明人： Youngjoon GIL ,  Hancheol JEONG ,  Sungyong IN

IPC分类号： H01M10/058 ,  H01M10/052 ,  H01M4/04 ,  H01M4/134 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395

摘要： A Li-metal or metal alloy based batteries with a multilayer structure and the method of manufacturing the same are provided herein. The method includes a preparation step, a stacking step, a pressing step, a cutting step and a termination plating step. Further, a sintering step may be performed prior to the termination plating step. The multilayer structure includes multiple unit battery structures and each battery structure is configured to include an anode layer including a Li-metal or metal allow with a two-dimensional (2D) material coated on the Li-metal or Li-metal alloy, a cathode layer including carbon-sulfur composites and solid or polymer electrolytes between the anode layer and the cathode layer. The 2D material include MoS2 and the carbon-sulfur composites include carbon nanotubes, sulfur, carbon wires, carbon powder, or Li2S powder.

公开(公告)号：US20220059812A1

公开(公告)日：2022-02-24

申请号：US17415331

申请日：2018-12-19

申请人： NOVONIX BATTERY TESTING SERVICES INC.

发明人： Mark OBROVAC ,  Yidan CAO ,  Jun WANG

IPC分类号： H01M4/133 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395

摘要： Particulate dispersions and composites are disclosed which comprise graphite and alloy particles comprising both active (e.g. Si) and inactive phases with regards to electrochemical activity with alkali or alkaline earth metals (e.g. lithium). The alloy particles are highly dispersed as primary particles with graphite particles and/or within the graphite particles' matrix in a novel manner and can be prepared using simple mechanofusion dry processing methods. In the composites prepared, the alloy particles are essentially embedded between layers in the graphite matrix. Improved performance can be obtained when these dispersions or composites are used in lithium insertion anodes for rechargeable lithium batteries, including high capacity, good cycling performance, and rate capability.

公开(公告)号：US11248307B2

公开(公告)日：2022-02-15

申请号：US16751938

申请日：2020-01-24

申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

发明人： Teppei Oguni ,  Takeshi Osada ,  Toshihiko Takeuchi

IPC分类号： B82Y30/00 ,  C25D13/22 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/36 ,  H01M4/1395 ,  H01M4/1393 ,  H01M4/139 ,  H01M4/134 ,  H01M4/133 ,  H01M4/13 ,  H01M4/04 ,  C25D13/02 ,  H01M4/02

摘要： To form graphene to a practically even thickness on an object having an uneven surface or a complex surface, in particular, an object having a surface with a three-dimensional structure due to complex unevenness, or an object having a curved surface. The object and an electrode are immersed in a graphene oxide solution, and voltage is applied between the object and the electrode. At this time, the object serves as an anode. Graphene oxide is attracted to the anode because of being negatively charged, and deposited on the surface of the object to have a practically even thickness. A portion where graphene oxide is deposited is unlikely coated with another graphene oxide. Thus, deposited graphene oxide is reduced to graphene, whereby graphene can be formed to have a practically even thickness on an object having surface with complex unevenness.