公开(公告)号：US10135063B2

公开(公告)日：2018-11-20

申请号：US13930031

申请日：2013-06-28

申请人： Northwestern University ,  Korea Institute of Geoscience and Mineral Resources

发明人： Jiaxing Huang ,  Hee Dong Jang ,  Jiayan Luo

IPC分类号： H01M4/36 ,  H01M4/04 ,  H01M4/583 ,  H01M8/16 ,  H01M4/88 ,  H01M4/96 ,  C09C1/30 ,  H01M4/02 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/62 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/194 ,  H01M10/0525

摘要： Capsules comprising crumpled graphene sheets that form a crumpled graphene shell encapsulating an internal cargo comprising nanostructures of a second component are provided. Also provided are anode materials for lithium ion batteries comprising the capsules, wherein the nanostructures are composed of an electrochemically active material, such as silicon.

公开(公告)号：US20130344392A1

公开(公告)日：2013-12-26

申请号：US13930031

申请日：2013-06-28

申请人： Northwestern University

发明人： Jiaxing Huang ,  Hee Dong Jang ,  Jiayan Luo

IPC分类号： H01M4/36

CPC分类号： H01M4/366 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/194 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2006/10 ,  C01P2006/40 ,  C09C1/3063 ,  H01M4/02 ,  H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/583 ,  H01M4/625 ,  H01M4/88 ,  H01M4/96 ,  H01M8/16 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/527

摘要： Capsules comprising crumpled graphene sheets that form a crumpled graphene shell encapsulating an internal cargo comprising nanostructures of a second component are provided. Also provided are anode materials for lithium ion batteries comprising the capsules, wherein the nanostructures are composed of an electrochemically active material, such as silicon.

摘要翻译： 提供包含皱褶石墨烯片的胶囊，其形成包封包含第二组分的纳米结构的内部货物的皱巴巴的石墨烯壳。 还提供了包括胶囊的锂离子电池的阳极材料，其中纳米结构由诸如硅的电化学活性材料组成。

公开(公告)号：US20190157654A1

公开(公告)日：2019-05-23

申请号：US16189196

申请日：2018-11-13

申请人： NORTHWESTERN UNIVERSITY

发明人： Jiaxing Huang ,  Hee Dong Jang ,  Jiayan Luo

IPC分类号： H01M4/04 ,  C01B32/194 ,  B82Y40/00 ,  B82Y30/00 ,  H01M4/88 ,  H01M4/583 ,  H01M8/16 ,  H01M4/96

摘要： In one aspect of the present invention, a method of for synthesizing compression- and aggregation-resistant particles includes forming a graphene dispersion solution with micron-sized graphene-based material sheets, nebulizing the graphene dispersion solution to form aerosol droplets, passing the aerosol droplets through a horizontal tube furnace pre-heated at a predetermined temperature by a carrier gas, and drying the aerosol droplets to concentrate and compress the micron-sized graphene-based material sheets into crumpled particles of sub-micron scale.

公开(公告)号：US11108045B2

公开(公告)日：2021-08-31

申请号：US16341484

申请日：2017-10-24

申请人： NORTHWESTERN UNIVERSITY

发明人： Jiaxing Huang ,  Jiayan Luo

IPC分类号： H01M4/02 ,  H01M4/587 ,  C01B32/184 ,  H01M10/0525

摘要： The invention relates to a host material for stabilizing a Li metal electrode, fabricating methods and applications of the same. The host material includes crumpled graphene balls operably defining a scaffold having volumes and voids inside and in between the crumpled graphene balls so as to allow uniform and stable Li deposition/dissolution inside and in between the crumpled graphene balls without electrode volume fluctuations or with sufficiently small electrode volume fluctuations. The crumpled paper ball-like structures of graphene particles can readily assemble to yield the scaffold with scalable Li loading up to 10 mAh cm-2 within tolerable volume fluctuations. High Coulombic efficiency of 97.5% over 750 cycles (1500 hours) is achieved. Plating/stripping Li up to 12 mAh cm-2 on the crumpled graphene scaffold does not experience dendrite growth.

公开(公告)号：US20190157666A1

公开(公告)日：2019-05-23

申请号：US16188886

申请日：2018-11-13

申请人： NORTHWESTERN UNIVERSITY ,  KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCE

发明人： Jiaxing Huang ,  Hee Dong Jang ,  Jiayan Luo

IPC分类号： H01M4/36 ,  H01M4/04 ,  C09C1/30 ,  H01M8/16 ,  H01M4/88 ,  H01M4/96 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/02 ,  B82Y40/00 ,  B82Y30/00 ,  C01B32/194 ,  H01M4/62 ,  H01M4/1395 ,  H01M4/583

摘要： Capsules comprising crumpled graphene sheets that form a crumpled graphene shell encapsulating an internal cargo comprising nanostructures of a second component are provided. Also provided are anode materials for lithium ion batteries comprising the capsules, wherein the nanostructures are composed of an electrochemically active material, such as silicon.