公开(公告)号：US12255333B2

公开(公告)日：2025-03-18

申请号：US17711709

申请日：2022-04-01

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Ling Fei

IPC: H01M4/587 ,  B05B5/03 ,  H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M4/36 ,  H01M4/38 ,  H01M4/48 ,  H01M4/485 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

Abstract: Provided herein are high performance electrodes, electrode materials comprising a plurality of active electrode material-containing particles secured within one or more graphenic web, and precursors thereof. Also provided herein are processes of generating the same by an electrospray process.

公开(公告)号：US11769928B2

公开(公告)日：2023-09-26

申请号：US17316035

申请日：2021-05-10

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Daehwan Cho ,  Yong Seok Kim

IPC: H01M50/44 ,  H01M50/431 ,  H01M50/446 ,  H01M10/0525 ,  H01M50/489 ,  H01M50/491 ,  H01M50/434 ,  H01M50/403

CPC classification number: H01M50/44 ,  H01M10/0525 ,  H01M50/434 ,  H01M50/446 ,  H01M50/489 ,  H01M50/491 ,  H01M50/403 ,  Y02E60/10 ,  Y02T10/70

Abstract: Provided herein are ceramic nanofibers and processes for preparing the same. In specific examples, provided herein are ceramic nanofiber mats for use as separators in batteries, particularly lithium ion batteries. In some embodiments, the separators described herein may include a nanofiber mat including at least one nanofiber having a continuous matrix material.

公开(公告)号：US11728545B2

公开(公告)日：2023-08-15

申请号：US17360659

申请日：2021-06-28

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Nathaniel S. Hansen ,  Daehwan Cho ,  Kyoung Woo Kim

IPC: H01M50/446 ,  H01M4/13 ,  H01M10/0525 ,  H01M50/44 ,  H01M50/403 ,  H01M50/411 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395 ,  D01D5/00 ,  D01F1/10 ,  D01F9/20 ,  D01F1/09 ,  H01M50/491 ,  H01M50/42 ,  H01M50/489 ,  H01M50/414 ,  H01M4/131 ,  H01M4/136 ,  H01M4/02 ,  H01M4/04 ,  H01M4/134

CPC classification number: H01M50/446 ,  D01D5/003 ,  D01F1/09 ,  D01F1/10 ,  D01F9/20 ,  H01M4/13 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0525 ,  H01M50/403 ,  H01M50/414 ,  H01M50/42 ,  H01M50/44 ,  H01M50/489 ,  H01M50/491 ,  D01D5/0069 ,  H01M4/0469 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/134 ,  H01M4/136 ,  H01M2004/021 ,  Y02E60/10

Abstract: Lithium ion batteries, electrodes, nanofibers, and methods for producing same are disclosed herein. Provided herein are batteries having (a) increased energy density; (b) decreased pulverization (structural disruption due to volume expansion during lithiation/de-lithiation processes); and/or (c) increased lifetime. In some embodiments described herein, using high throughput, water-based electrospinning process produces nanofibers of high energy capacity materials (e.g., ceramic) with nanostructures such as discrete crystal domains, mesopores, hollow cores, and the like; and such nanofibers providing reduced pulverization and increased charging rates when they are used in anodic or cathodic materials.

公开(公告)号：US20220186403A1

公开(公告)日：2022-06-16

申请号：US17519238

申请日：2021-11-04

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Daehwan Cho ,  Alexander Naydich

IPC: D01F6/18 ,  D01D5/00 ,  D04H1/728 ,  D01F1/10 ,  B01D67/00 ,  B01D69/14 ,  B01D71/42 ,  D04H3/009 ,  B01D39/08 ,  D01F6/14 ,  D01F9/08

Abstract: Described herein are nanofibers and methods for making nanofibers that include any one or more of (a) a non-homogeneous charge density; (b) a plurality of regions of high charge density; and/or (c) charged nanoparticles or chargeable nanoparticles. In one aspect, the present invention fulfills a need for filtration media that are capable of both high performance (e.g., removal of particle sizes between 0.1 and 0.5 μm) with a low pressure drop, however the invention is not limited in this regard.

公开(公告)号：US10903482B2

公开(公告)日：2021-01-26

申请号：US15868659

申请日：2018-01-11

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Nathaniel S. Hansen ,  Daehwan Cho ,  Kyoung Woo Kim

IPC: H01M4/131 ,  D01D5/00 ,  D01F9/10 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/587 ,  H01M4/60 ,  C08K3/22 ,  D01F11/06 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/62 ,  H01M2/16 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/02 ,  B82Y30/00

Abstract: Lithium-containing nanofibers, as well as processes for making the same, are disclosed herein. In some embodiments described herein, using high throughput (e.g., gas assisted and/or water based) electrospinning processes produce nanofibers of high energy capacity materials with continuous lithium-containing matrices or discrete crystal domains.

公开(公告)号：US20190175536A1

公开(公告)日：2019-06-13

申请号：US16239172

申请日：2019-01-03

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Nathaniel S. Hansen ,  Daehwan Cho

IPC: A61K31/202 ,  A61K31/232

Abstract: Provided herein are nanofibers and processes of preparing nanofibers. In some instances, the nanofibers are metal and/or ceramic nanofibers. In some embodiments, the nanofibers are high quality, high performance nanofibers, highly coherent nanofibers, highly continuous nanofibers, or the like. In some embodiments, the nanofibers have increased coherence, increased length, few voids and/or defects, and/or other advantageous characteristics. In some instances, the nanofibers are produced by electrospinning a fluid stock having a high loading of nanofiber precursor in the fluid stock. In some instances, the fluid stock comprises well mixed and/or uniformly distributed precursor in the fluid stock. In some instances, the fluid stock is converted into a nanofiber comprising few voids, few defects, long or tunable length, and the like.

公开(公告)号：US20180313002A1

公开(公告)日：2018-11-01

申请号：US16023079

申请日：2018-06-29

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Brian Williams

IPC: D01F9/12 ,  D01F9/14 ,  D01F1/08 ,  D01D5/247 ,  D01D5/00 ,  D01F2/28 ,  D01F6/18

CPC classification number: D01F9/12 ,  D01D5/0007 ,  D01D5/003 ,  D01D5/247 ,  D01F1/08 ,  D01F2/28 ,  D01F6/18 ,  D01F9/14 ,  D10B2101/12 ,  D10B2401/10

Abstract: Described herein are nanofibers and methods for making porous carbon nanofibers. The pores have of any suitable size or shape. The presence and/or ordering of the pores results in a high surface area and/or high specific surface area. Such carbon is useful in a number of applications where high surface area carbon is desirable.

公开(公告)号：US10036105B2

公开(公告)日：2018-07-31

申请号：US14912981

申请日：2014-08-21

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Brian Williams

IPC: D01F9/12 ,  D01F2/28 ,  D01F6/18 ,  D01D5/00 ,  D01D5/247 ,  D01F1/08 ,  D01F9/14

CPC classification number: D01F9/12 ,  D01D5/0007 ,  D01D5/003 ,  D01D5/247 ,  D01F1/08 ,  D01F2/28 ,  D01F6/18 ,  D01F9/14 ,  D10B2101/12 ,  D10B2401/10

Abstract: Described herein are nanofibers and methods for making porous carbon nanofibers. The pores have of any suitable size or shape. The presence and/or ordering of the pores results in a high surface area and/or high specific surface area. Such carbon is useful in a number of applications where high surface area carbon is desirable.

公开(公告)号：US20180119313A1

公开(公告)日：2018-05-03

申请号：US15792327

申请日：2017-10-24

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Nathaniel S. Hansen

IPC: D01F9/10 ,  C01B32/914 ,  C01B32/956 ,  C04B35/622 ,  C04B35/634 ,  C04B35/636 ,  C09K5/14 ,  D01D5/00 ,  D01D10/02 ,  D01F9/14 ,  H01B1/04

CPC classification number: D01F9/10 ,  C01B32/914 ,  C01B32/956 ,  C04B35/62277 ,  C04B35/62281 ,  C04B35/634 ,  C04B35/6365 ,  C04B2235/3244 ,  C04B2235/327 ,  C04B2235/3272 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3291 ,  C04B2235/3296 ,  C04B2235/3418 ,  C04B2235/40 ,  C04B2235/449 ,  C04B2235/48 ,  C04B2235/526 ,  C04B2235/5264 ,  C04B2235/5296 ,  C04B2235/5409 ,  C04B2235/5454 ,  C04B2235/6562 ,  C04B2235/96 ,  C04B2235/9607 ,  C09K5/14 ,  D01D5/0015 ,  D01D5/0069 ,  D01D10/02 ,  D01F9/14 ,  H01B1/04

Abstract: Provided herein are nanofibers and processes of preparing carbonaceous nanofibers. In some embodiments, the nanofibers are high quality, high performance nanofibers, highly coherent nanofibers, highly continuous nanofibers, or the like. In some embodiments, the nanofibers have increased coherence, increased length, few voids and/or defects, and/or other advantageous characteristics. In some instances, the nanofibers are produced by electrospinning a fluid stock having a high loading of nanofiber precursor in the fluid stock. In some instances, the fluid stock comprises well mixed and/or uniformly distributed precursor in the fluid stock. In some instances, the fluid stock is converted into a nanofiber comprising few voids, few defects, long or tunable length, and the like.

公开(公告)号：US20150240388A1

公开(公告)日：2015-08-27

申请号：US14428435

申请日：2013-09-16

Applicant: Cornell University

Inventor： Yong Lak Joo ,  Nathaniel S. Hansen

IPC: D01F8/04 ,  C08K3/34 ,  C08K3/14 ,  C09K5/14

CPC classification number: D01F8/18 ,  C08K3/04 ,  C08K3/14 ,  C08K3/16 ,  C08K3/22 ,  C08K3/28 ,  C08K3/34 ,  C08K5/06 ,  C08K5/098 ,  C09K5/14 ,  D01D1/06 ,  D01D5/003 ,  D01F8/04 ,  D04H1/4209 ,  D04H1/4382 ,  D04H1/728 ,  D10B2321/00 ,  D10B2321/06 ,  D10B2321/08 ,  D10B2321/12 ,  D10B2331/06 ,  H01B1/22

Abstract: Provided herein are high performance reinforcing nanostructure additives, high throughput processes for using such additives, and composites comprising such additives. Such nanostructure additives include nanofibers, including nanofiber fragments, of various matrix materials, including metal(s) (e.g., elemental metal(s), metal alloy(s), etc.), metal oxide(s), ceramic(s), metal carbide(s), carbon (e.g., carbon nanocomposites comprising carbon matrix with metal component embedded therein), and/or combinations thereof.

Abstract translation: 本文提供了高性能增强纳米结构添加剂，使用这种添加剂的高通量方法，以及包含这些添加剂的复合材料。 这样的纳米结构添加剂包括各种基体材料（包括金属（例如元素金属，金属合金等）），金属氧化物，陶瓷等的纳米纤维碎片， 金属碳化物，碳（例如，包含其中嵌入有金属成分的碳基体的碳纳米复合材料）和/或其组合。