公开(公告)号：US20170222210A1

公开(公告)日：2017-08-03

申请号：US15013769

申请日：2016-02-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingcheng Xiao

IPC: H01M4/04 ,  H01M4/38 ,  C25D13/12 ,  H01M4/134 ,  H01M4/133 ,  H01M4/62 ,  H01M4/583

CPC classification number: H01M4/0457 ,  C25D13/02 ,  C25D13/12 ,  H01M4/13 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/386 ,  H01M4/583 ,  H01M4/622 ,  H01M4/623 ,  H01M4/625

Abstract: A method for manufacturing an electrode for a lithium-based battery by electrophoretic deposition is provided. The method includes: mixing particles with graphene oxide and a binder in a solution, the particles including a material selected from silicon, silicon oxide, silicon alloys, tin, tin oxide, sulfur, lithium manganese oxide, lithium cobalt oxide, lithium nickel oxide, lithium nickel manganese oxide, and lithium nickel manganese cobalt oxide. The method further includes applying a potential between a current collector and a counter electrode immersed in the solution to deposit a coating of a combination of the particles, at least partially reduced graphene oxide, and binder onto the current collector. The method still further includes drying the coated current collector.

公开(公告)号：US20170141382A1

公开(公告)日：2017-05-18

申请号：US14945151

申请日：2015-11-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gayatri V. Dadheech ,  Xingcheng Xiao ,  Mei Cai

IPC: H01M4/36 ,  H01M4/48 ,  H01M4/62 ,  H01M4/38 ,  H01M10/052 ,  H01M4/04

CPC classification number: H01M4/366 ,  H01M4/13 ,  H01M4/38 ,  H01M4/624 ,  H01M4/625 ,  H01M10/052

Abstract: In an example of a method for making a sulfur-based positive electrode active material, a carbon layer is formed on a sacrificial nanomaterial. The carbon layer is coated with titanium dioxide to form a titanium dioxide layer. The sacrificial nanomaterial is removed to form a hollow material including a hollow core surrounded by a carbon and titanium dioxide double shell. Sulfur is impregnated into the hollow core.

公开(公告)号：US20170095807A1

公开(公告)日：2017-04-06

申请号：US15247601

申请日：2016-08-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingcheng Xiao ,  Gongshin Qi ,  Ryan J. Day

IPC: B01J37/00 ,  B01J37/02 ,  B01J37/08 ,  B01J37/03 ,  B01J35/00 ,  B01J35/06 ,  B01J35/04 ,  B01J23/40 ,  C23C16/455 ,  B29C47/00 ,  C23C16/40 ,  F01N3/10 ,  B01D53/94 ,  F01N3/28 ,  B01J37/34

CPC classification number: B01J37/0018 ,  B01D53/944 ,  B01D53/945 ,  B01D2255/102 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/702 ,  B01D2255/91 ,  B01D2255/9202 ,  B01J23/40 ,  B01J35/0006 ,  B01J35/0013 ,  B01J35/04 ,  B01J35/06 ,  B01J37/0215 ,  B01J37/035 ,  B01J37/082 ,  B01J37/088 ,  B01J37/348 ,  B29C48/022 ,  B29C48/05 ,  B29C48/142 ,  B29K2105/0014 ,  B29L2023/00 ,  C23C16/40 ,  C23C16/45555 ,  C23C18/1216 ,  C23C18/127 ,  F01N3/101 ,  F01N3/103 ,  F01N3/2825 ,  F01N3/2828 ,  F01N2330/06 ,  F01N2370/02 ,  Y02T10/22

Abstract: In an example of a method for forming a catalyst, a polymeric solution including a platinum group metal (PGM) is exposed to electrospinning to form carbon-based nanofibers containing PGM nanoparticles therein. An outer surface of the carbon-based nanofibers containing the PGM nanoparticles is coated with a metal oxide or a metal oxide precursor. The carbon-based nanofibers are selectively removed to form metal oxide nanotubes having PGM nanoparticles retained within a hollow portion thereof.

公开(公告)号：US20170095806A1

公开(公告)日：2017-04-06

申请号：US15247506

申请日：2016-08-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gongshin Qi ,  Ryan J. Day ,  Se H. Oh ,  Xingcheng Xiao ,  Ming Yang

IPC: B01J33/00 ,  B01J21/04 ,  B01J35/00 ,  F01N3/10 ,  B01J37/02 ,  B01J37/18 ,  B01D53/94 ,  C23C16/455 ,  B01J23/44 ,  B01J35/02

CPC classification number: B01J33/00 ,  B01D53/88 ,  B01D53/944 ,  B01D53/945 ,  B01D2251/2067 ,  B01D2255/1023 ,  B01D2255/2092 ,  B01D2255/90 ,  B01D2258/012 ,  B01J21/04 ,  B01J23/44 ,  B01J35/0006 ,  B01J35/026 ,  B01J37/0221 ,  B01J37/0248 ,  B01J37/18 ,  B01J37/349 ,  C23C16/45555 ,  F01N3/101 ,  F01N3/103 ,  F01N3/2828 ,  F01N2330/06 ,  F01N2330/14 ,  F01N2370/00 ,  Y02T10/22

Abstract: A catalytic converter includes a catalyst. The catalyst includes a support, platinum group metal (PGM) particles dispersed on the support, and a barrier formed on the support. The barrier is disposed between a first set of the PGM particles and a second set of the PGM particles to suppress aging of the PGM particles.

公开(公告)号：US20170092950A1

公开(公告)日：2017-03-30

申请号：US14868878

申请日：2015-09-29

Applicant: GM Global Technology Operations LLC

Inventor： Xingcheng Xiao ,  Weidong Zhou

IPC: H01M4/587 ,  H01M4/36 ,  H01M4/58 ,  H01M4/38

CPC classification number: H01M4/587 ,  H01M4/362 ,  H01M4/364 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/581 ,  H01M4/5815 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021

Abstract: An electrode material for an electrochemical cell, such as a lithium ion battery or a lithium sulfur battery, is provided. The electrode may be a negative anode. The electrode material comprises a composite comprising a porous matrix comprising a carbonized material. The electrode material further comprises a plurality of silicon particles homogeneously dispersed in the porous matrix of carbonized material. Each silicon particle of the plurality has an average particle diameter of greater than or equal to about 5 nanometers and less than or equal to about 20 micrometers.

公开(公告)号：US09379374B2

公开(公告)日：2016-06-28

申请号：US14332184

申请日：2014-07-15

Applicant: GM Global Technology Operations LLC

Inventor： Zhongyi Liu ,  Xingcheng Xiao ,  Michael K. Carpenter

IPC: B05D5/12 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/38 ,  H01M4/36 ,  H01M4/583 ,  H01M4/02

CPC classification number: H01M4/0402 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/583 ,  H01M4/625 ,  H01M2004/027 ,  H01M2220/10 ,  H01M2220/30

Abstract: In an example method, a transition metal precursor is selected so its transition metal has a diffusion rate that is slower than a diffusion rate of silicon. An aqueous mixture is formed by dissolving the precursor in an aqueous medium, and adding silicon particles to the medium. The mixture is exposed to a hydroxide, which forms a product including the silicon particles and a transition metal hydroxide precipitate. The product is dried. In an inert or reducing environment, silicon atoms of the silicon particles in the dried product are caused to diffuse out of, and form voids in and/or at a surface of, the particles. At least some silicon atoms react with the transition metal hydroxide in the dried product to form i) a SiOx (0

Abstract translation: 在示例性方法中，选择过渡金属前体，使得其过渡金属具有比硅的扩散速率慢的扩散速率。 通过将前体溶解在水性介质中并将硅颗粒添加到介质中来形成含水混合物。 将混合物暴露于氢氧化物，其形成包括硅颗粒和过渡金属氢氧化物沉淀物的产物。 产品干燥。 在惰性或还原环境中，使干燥产物中的硅颗粒的硅原子扩散到颗粒内和/或表面上形成空隙。 至少一些硅原子与干燥产物中的过渡金属氢氧化物反应以形成i）硅颗粒上的SiO x（0

公开(公告)号：US20160172665A1

公开(公告)日：2016-06-16

申请号：US14964545

申请日：2015-12-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Weidong Zhou ,  Xingcheng Xiao

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/38 ,  H01M10/052 ,  H01M4/587

CPC classification number: H01M4/366 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/386 ,  H01M4/587 ,  H01M4/622 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2004/027

Abstract: A negative electrode includes an active material. The active material includes a silicon-based core and a two-dimensional, layered mesoporous carbon coating in continuous contact with the silicon-based core. The two-dimensional, layered mesoporous carbon coating is capable of expanding and contracting with the silicon-based core. The negative electrode also includes a binder.

Abstract translation: 负极包括活性物质。 活性材料包括硅基核和与硅基核连续接触的二维分层介孔碳涂层。 二维分层介孔碳涂层能够与硅基核扩展和收缩。 负极还包括粘合剂。

公开(公告)号：US09252411B2

公开(公告)日：2016-02-02

申请号：US14087448

申请日：2013-11-22

Applicant: GM Global Technology Operations LLC

Inventor： Mahmoud H. Abd Elhamid ,  Xingcheng Xiao ,  Mei Cai

IPC: H01M2/16

CPC classification number: H01M2/1613 ,  H01M2/1653 ,  H01M2220/20 ,  Y10T29/49108

Abstract: Use of a flexible, nonconductive, porous, and thermally tolerant ceramic material as a separator in a lithium-ion battery or lithium-sulfur battery is described. The separator can be made of aluminum oxide and provides excellent mechanical and thermal properties that prevent wear and puncture of the separator caused by particles removed from the electrodes during the charging and discharging process. The separator is designed to mitigate effects of melt shrinkage and facilitate the lithium ion transport, in contrast to separators that include a polymeric material, thus preventing short-circuiting between the positive and the negative electrode. Improved wetting and filling of the separator with electrolyte solution are provided, for improved rate capability of the battery (fast charging and discharging). The separator further reduces the potential for thermal runaway in Li batteries.

Abstract translation: 描述了在锂离子电池或锂硫电池中使用柔性，非导电，多孔和耐热的陶瓷材料作为隔板。 分离器可以由氧化铝制成，并提供优异的机械和热性能，以防止在充电和放电过程中从电极去除的颗粒引起的分离器的磨损和刺穿。 与包括聚合物材料的分离器相反，分离器被设计为减轻熔体收缩的影响并促进锂离子传输，从而防止正极和负极之间的短路。 提供用电解质溶液改善分离器的润湿和填充，以提高电池的速率能力（快速充放电）。 分离器进一步降低了锂电池的热失控的可能性。

公开(公告)号：US09093705B2

公开(公告)日：2015-07-28

申请号：US13837898

申请日：2013-03-15

Applicant: GM Global Technology Operations LLC

Inventor： Xingcheng Xiao ,  Anil K. Sachdev ,  Mark W. Verbrugge

IPC: H01M4/38 ,  C01B33/021 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/386 ,  C01B33/021 ,  H01M4/134 ,  H01M4/1395 ,  H01M10/052 ,  H01M2004/021 ,  Y02E60/122 ,  Y02P70/54

Abstract: Porous, amorphous lithium storage materials and a method for making these materials are disclosed herein. In an example of the method, composite particles of a lithium storage material in an amorphous phase and a material that is immiscible with the lithium storage material are prepared. Phase separation is induced within the composite particles to precipitate out the amorphous phase lithium storage material and form phase separated composite particles. The immiscible material is chemically etched from the phase separated composite particles to form porous, amorphous lithium storage material particles.

Abstract translation: 本文公开了多孔非晶锂储存材料及其制备方法。 在该方法的一个实例中，制备非晶相中的锂储存材料的复合颗粒和与锂储存材料不混溶的材料。 在复合颗粒内诱发相分离，沉淀出非晶相锂储存材料并形成相分离的复合颗粒。 从相分离的复合颗粒化学蚀刻不混溶的材料，以形成多孔的无定形锂储存材料颗粒。

公开(公告)号：US20150147641A1

公开(公告)日：2015-05-28

申请号：US14087448

申请日：2013-11-22

Applicant: GM Global Technology Operations LLC

Inventor： Mahmoud H. Abd Elhamid ,  Xingcheng Xiao ,  Mei Cai

IPC: H01M2/16

CPC classification number: H01M2/1613 ,  H01M2/1653 ,  H01M2220/20 ,  Y10T29/49108

Abstract: Use of a flexible, nonconductive, porous, and thermally tolerant ceramic material as a separator in a lithium-ion battery or lithium-sulfur battery is described. The separator can be made of aluminum oxide and provides excellent mechanical and thermal properties that prevent wear and puncture of the separator caused by particles removed from the electrodes during the charging and discharging process. The separator is designed to mitigate effects of melt shrinkage and facilitate the lithium ion transport, in contrast to separators that include a polymeric material, thus preventing short-circuiting between the positive and the negative electrode. Improved wetting and filling of the separator with electrolyte solution are provided, for improved rate capability of the battery (fast charging and discharging). The separator further reduces the potential for thermal runaway in Li batteries.

Abstract translation: 描述了在锂离子电池或锂硫电池中使用柔性，非导电，多孔和耐热的陶瓷材料作为隔板。 分离器可以由氧化铝制成，并提供优异的机械和热性能，以防止在充电和放电过程中从电极去除的颗粒引起的分离器的磨损和刺穿。 与包括聚合物材料的分离器相反，分离器被设计为减轻熔体收缩的影响并促进锂离子传输，从而防止正极和负极之间的短路。 提供用电解质溶液改善分离器的润湿和填充，以提高电池的速率能力（快速充放电）。 分离器进一步降低了锂电池的热失控的可能性。