公开(公告)号：US20210399384A1

公开(公告)日：2021-12-23

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 ,  D01D5/00 ,  D01F1/10 ,  D01F9/20 ,  H01M4/13 ,  H01M10/0525 ,  H01M50/44 ,  H01M50/403 ,  H01M50/411 ,  D01F1/09 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395

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：US20210273294A1

公开(公告)日：2021-09-02

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

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.

公开(公告)号：US11050118B2

公开(公告)日：2021-06-29

申请号：US16035823

申请日：2018-07-16

Applicant: CORNELL UNIVERSITY

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

IPC: H01M2/16 ,  H01M10/0525 ,  H01M50/446 ,  D01D5/00 ,  D01F1/10 ,  D01F9/20 ,  H01M4/13 ,  H01M50/44 ,  H01M50/403 ,  H01M50/411 ,  D01F1/09 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/131 ,  H01M4/136 ,  H01M4/02 ,  H01M4/04 ,  H01M4/134

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：US20190207186A1

公开(公告)日：2019-07-04

申请号：US16230665

申请日：2018-12-21

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Daehwan Cho ,  SangHo Lee ,  Masakazu Kobayashi

IPC: H01M2/14 ,  C04B35/634 ,  D01D5/00 ,  H01M4/525 ,  H01M10/0525 ,  H01M2/16 ,  C04B35/622 ,  B01D67/00 ,  B01D71/00 ,  B01D71/02 ,  C04B35/626 ,  D04H1/728 ,  C04B38/06 ,  C04B35/636 ,  C04B35/632

CPC classification number: H01M2/145 ,  B01D67/0041 ,  B01D67/0079 ,  B01D71/00 ,  B01D71/024 ,  B01D2323/39 ,  C04B35/6224 ,  C04B35/6269 ,  C04B35/632 ,  C04B35/634 ,  C04B35/63468 ,  C04B35/63488 ,  C04B35/6365 ,  C04B38/065 ,  C04B2235/3418 ,  C04B2235/48 ,  C04B2235/483 ,  C04B2235/526 ,  C04B2235/5296 ,  C04B2235/5409 ,  D01D5/003 ,  D01D5/0038 ,  D04H1/728 ,  H01M2/1633 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  C04B38/067 ,  C04B38/0695

Abstract: Provided herein are methods for forming nanofibers. The current disclosure provides ceramic nanofibers, morphology-controlled ceramic-polymer hybrid nanofibers, morphology-controlled ceramic nanofibers, core-sheath nanofibers and hollow core nanofibers using ceramic precursor materials and polymer materials which are combined and undergo electrospinning. The current disclosure provides for methods of forming these nanofibers at low temperatures such as room temperature and in the presence of oxygen and moisture wherein the ceramic precursor cures to a ceramic material during the electrospinning process. Also disclosed are the nanofibers prepared by the disclosed methods.

公开(公告)号：US20190123321A1

公开(公告)日：2019-04-25

申请号：US16220874

申请日：2018-12-14

Applicant: CORNELL UNIVERSITY

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

IPC: H01M2/16 ,  H01M10/0525

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.

公开(公告)号：US20180209072A1

公开(公告)日：2018-07-26

申请号：US15876439

申请日：2018-01-22

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Daehwan Cho ,  Alexander Naydich

IPC: D01F6/18 ,  D01F1/10 ,  B01D39/08 ,  B01D67/00 ,  B01D69/14 ,  D01F6/14 ,  D01D5/00 ,  B01D71/42 ,  D04H1/728 ,  D04H3/009 ,  D01F9/08 ,  B01D71/02 ,  B01D71/38

CPC classification number: D01F6/18 ,  B01D39/08 ,  B01D67/0079 ,  B01D69/148 ,  B01D71/024 ,  B01D71/38 ,  B01D71/42 ,  B01D2323/39 ,  D01D5/0007 ,  D01D5/0023 ,  D01D5/003 ,  D01D5/0069 ,  D01F1/10 ,  D01F6/14 ,  D01F9/08 ,  D04H1/728 ,  D04H3/009 ,  D10B2321/06 ,  D10B2321/10 ,  D10B2505/04 ,  Y10T428/2933 ,  Y10T428/298

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：US20160308184A1

公开(公告)日：2016-10-20

申请号：US15101548

申请日：2014-12-03

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Daehwan Cho ,  SangHo Lee ,  Masakazu Kobayashi

IPC: H01M2/14 ,  C04B35/634 ,  C04B35/626 ,  D04H1/728 ,  H01M4/525 ,  H01M10/0525 ,  D01D5/00 ,  C04B35/622 ,  H01M2/16

CPC classification number: H01M2/145 ,  B01D67/0041 ,  B01D67/0079 ,  B01D71/00 ,  B01D71/024 ,  B01D2323/39 ,  C04B35/6224 ,  C04B35/6269 ,  C04B35/632 ,  C04B35/634 ,  C04B35/63468 ,  C04B35/63488 ,  C04B35/6365 ,  C04B38/065 ,  C04B2235/3418 ,  C04B2235/48 ,  C04B2235/483 ,  C04B2235/526 ,  C04B2235/5296 ,  C04B2235/5409 ,  D01D5/003 ,  D01D5/0038 ,  D04H1/728 ,  H01M2/1633 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  C04B38/067 ,  C04B38/0695

Abstract: Provided herein are methods for forming nanofibers. The current disclosure provides ceramic nanofibers, morphology-controlled ceramic-polymer hybrid nanofibers, morphology-controlled ceramic nanofibers, core-sheath nanofibers and hollow core nanofibers using ceramic precursor materials and polymer materials which are combined and undergo electrospinning. The current disclosure provides for methods of forming these nanofibers at low temperatures such as room temperature and in the presence of oxygen and moisture wherein the ceramic precursor cures to a ceramic material during the electrospinning process. Also disclosed are the nanofibers prepared by the disclosed methods.

Abstract translation: 本文提供了形成纳米纤维的方法。 本公开提供使用陶瓷前体材料的陶瓷纳米纤维，形态控制的陶瓷 - 聚合物混合纳米纤维，形态控制的陶瓷纳米纤维，芯鞘纳米纤维和中空核心纳米纤维，其组合并进行静电纺丝。 本公开提供了在低温例如室温下和在氧气和水分存在下形成这些纳米纤维的方法，其中陶瓷前体在静电纺丝过程中固化成陶瓷材料。 还公开了通过所公开的方法制备的纳米纤维。

公开(公告)号：US09370096B2

公开(公告)日：2016-06-14

申请号：US13863548

申请日：2013-04-16

Applicant: Cornell University

Inventor： Margaret Frey ,  Daehwan Cho ,  SangGap Lee ,  Chae Un Kim ,  Nikolas Hoepker ,  Mark W. Tate ,  Meryem Oznur Pehlivaner Kara

IPC: D01D5/04 ,  D01D5/06 ,  D01D5/18 ,  D01F1/02 ,  D01F1/09 ,  D01F1/10 ,  H05K1/09 ,  D01D5/00 ,  H01B1/12 ,  D01F6/44 ,  C08L65/00 ,  H05K1/16

CPC classification number: H05K1/09 ,  C08G2261/1424 ,  C08G2261/3223 ,  C08G2261/51 ,  C08G2261/94 ,  C08L65/00 ,  D01D5/0038 ,  D01D5/0046 ,  D01F6/44 ,  H01B1/127 ,  H05K1/16 ,  H05K2201/0278 ,  H05K2201/0281 ,  H05K2201/10151 ,  C08L25/18 ,  C08L29/04

Abstract: Provided are conducting polymer nanofibers, methods of making conducting polymer nanofibers, and uses thereof. The conducting polymer nanofibers can be formed by, for example, electrospinning, force spinning, and centrifugal spinning using a spinning dope. The conducting polymer nanofibers can be used in devices, such as a radiation detecting device.

Abstract translation: 提供导电聚合物纳米纤维，制备导电聚合物纳米纤维的方法及其用途。 导电聚合物纳米纤维可以通过例如静电纺丝，力纺丝和使用纺丝原液的离心纺丝形成。 导电聚合物纳米纤维可用于诸如辐射检测装置的装置中。