公开(公告)号：US20220223867A1

公开(公告)日：2022-07-14

申请号：US17711709

申请日：2022-04-01

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Ling Fei

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

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：US20210242513A1

公开(公告)日：2021-08-05

申请号：US17236614

申请日：2021-04-21

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Jaehyuk Lee

IPC: H01M10/52 ,  H01M4/134 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/62 ,  H01M4/66 ,  H01M4/80 ,  H01M4/38 ,  H01M4/04 ,  H01M4/36 ,  H01M4/58

Abstract: Provided herein are positive electrodes for lithium batteries, particularly lithium sulfur batteries, and the manufacture thereof. Particularly, such electrodes have good performance characteristics, such as capacity and capacity retention, even at very high loading of sulfur (e.g., >5 mg/cm2), as well as flexibility. Exemplary manufacturing techniques include the electrospraying of sulfur (e.g., electrode active sulfur compounds), and an optional additive (e.g., a nanostructured conductive additive), onto a porous, conductive substrate (e.g., a porous carbon substrate, such as comprising multiple layers and/or domains).

公开(公告)号：US10450674B2

公开(公告)日：2019-10-22

申请号：US15463226

申请日：2017-03-20

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Kyoung Woo Kim ,  Yong Seok Kim

IPC: D01D5/00 ,  D01F9/20 ,  D01F9/12 ,  D01D1/02 ,  D01F1/02 ,  H01M4/587 ,  D01F9/32 ,  D04H1/728 ,  H01M10/0525

Abstract: Provided herein are nanofibers comprising carbon precursors, nanofibers comprising carbon matrices, and processes for preparing the same. In specific examples, provided herein are high performance lithium ion battery anodic nanofibers comprising non-aggregated silicon domains in a continuous carbon matrix.

公开(公告)号：US20180291534A1

公开(公告)日：2018-10-11

申请号：US16001535

申请日：2018-06-06

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Nathaniel S. Hansen

IPC: D01F8/18 ,  D04H1/4382 ,  C08K3/04 ,  C08K3/16 ,  C08K3/22 ,  C08K3/28 ,  C08K5/06 ,  C08K5/098 ,  D01D1/06 ,  D01D5/00 ,  H01B1/22 ,  D01F8/04 ,  C09K5/14 ,  C08K3/34 ,  C08K3/14 ,  D04H1/4209 ,  D04H1/728

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.

公开(公告)号：US09879363B2

公开(公告)日：2018-01-30

申请号：US14385806

申请日：2013-03-15

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Daehwan Cho ,  Alexander Naydich

IPC: D01F1/02 ,  D01F1/09 ,  D01F6/18 ,  D01D5/00 ,  D04H1/728 ,  D01F1/10 ,  B01D67/00 ,  B01D69/14 ,  B01D71/42 ,  D04H3/009 ,  B01D39/08 ,  D01F6/14 ,  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 ?m) with a low pressure drop, however the invention is not limited in this regard.

公开(公告)号：US20160248100A1

公开(公告)日：2016-08-25

申请号：US15031370

申请日：2014-10-22

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Jun Yin

IPC: H01M4/90 ,  H01M4/86 ,  H01M4/134 ,  D01D5/00 ,  H01M4/88 ,  H01M8/1018 ,  H01M10/0565 ,  H01M12/08 ,  H01M4/38

CPC classification number: H01M4/9016 ,  D01D5/0007 ,  H01M4/134 ,  H01M4/382 ,  H01M4/405 ,  H01M4/86 ,  H01M4/8626 ,  H01M4/8647 ,  H01M4/88 ,  H01M4/8807 ,  H01M4/8828 ,  H01M4/8853 ,  H01M4/8882 ,  H01M4/92 ,  H01M8/1018 ,  H01M10/0565 ,  H01M12/08 ,  H01M2004/027 ,  H01M2004/8689 ,  H01M2300/0071 ,  H01M2300/0082 ,  H01M2300/0091 ,  Y02E60/128

Abstract: Provided herein are lithium-air battery cells comprising nanostructured (e.g., nanofiber) anode, cathode, and/or separator/electrolyte components.

Abstract translation: 本文提供了包含纳米结构（例如纳米纤维）阳极，阴极和/或分离器/电解质组分的锂空气电池单元。

公开(公告)号：US20150287967A1

公开(公告)日：2015-10-08

申请号：US14437916

申请日：2013-10-22

Applicant: CORNELL UNIVERSITY

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

IPC: H01M2/16 ,  H01M10/0525

CPC classification number: H01M2/1613 ,  H01M2/145 ,  H01M2/1633 ,  H01M10/0525 ,  Y02T10/7011

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.

Abstract translation: 本文提供陶瓷纳米纤维及其制备方法。 在具体实例中，本文提供了用作电池中的隔板的陶瓷纳米纤维垫，特别是锂离子电池。

公开(公告)号：US20150147616A1

公开(公告)日：2015-05-28

申请号：US14551312

申请日：2014-11-24

Applicant: CORNELL UNIVERSITY

Inventor： Katharine Rose Chemelewski ,  Yong Lak Joo

IPC: H01M10/0525 ,  H01M10/04 ,  H01M2/02

CPC classification number: H01M10/0525 ,  H01M2/0222 ,  H01M2/0413 ,  H01M2/0465 ,  H01M2/08 ,  H01M10/0587 ,  Y02T10/7011

Abstract: Provided herein are button cell housing components configured to be suitable for lithium ion battery cells.

Abstract translation: 这里提供了构造成适合于锂离子电池单元的钮扣电池壳体部件。

公开(公告)号：US20150101979A1

公开(公告)日：2015-04-16

申请号：US14391542

申请日：2013-04-10

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Daehwan Cho ,  Kyoung Woo Kim

IPC: B01D39/16 ,  B01D39/18 ,  B29D99/00

CPC classification number: B01D39/1615 ,  B01D39/1623 ,  B01D39/18 ,  B29D99/0078 ,  B29K2029/04 ,  B29K2033/20 ,  B29K2089/00 ,  B29K2105/0014 ,  B29K2105/0091 ,  B29K2105/24 ,  D01D5/003 ,  D01D5/18 ,  D01F1/10 ,  D01F4/00 ,  D01F11/00

Abstract: A surface treatment method is described herein where a stabilizing (e.g., crosslinking agent) is pre-mixed into a fluid stock comprising a processable polymer. The stock is processed to form products (e.g., nanofibers or films), followed by exposing the products to a stabilizing (e.g., crosslinking catalyst, such as acid vapors), which results in stabilization (e.g., polymer cross-linking on the surface of the product). In some embodiments, the morphology of the product is not changed upon crosslinking. Moreover in some instances, this method does not need strong acids and is performed with weak acids such as acetic acid which reduces environmental pollution. In addition to water soluble polymers (e.g., PVA), this method is applicable to proteins such as soy protein, and combinations of polymers and proteins in various embodiments.

Abstract translation: 本文描述了表面处理方法，其中将稳定（例如交联剂）预混合到包含可加工聚合物的流体原料中。 处理原料以形成产品（例如，纳米纤维或薄膜），然后将产物暴露于稳定剂（例如交联催化剂，例如酸性蒸汽）中，这导致稳定化（例如，聚合物在表面上的交联 产品）。 在一些实施方案中，产物的形态在交联时不改变。 此外，在一些情况下，该方法不需要强酸，并且用弱酸例如乙酸进行，这降低了环境污染。 除了水溶性聚合物（例如PVA）之外，该方法可应用于各种实施方案中的蛋白质如大豆蛋白质，以及聚合物和蛋白质的组合。

公开(公告)号：US20150076742A1

公开(公告)日：2015-03-19

申请号：US14457994

申请日：2014-08-12

Applicant: CORNELL UNIVERSITY

Inventor： Yong Lak Joo ,  Kyoung Woo Kim ,  Yong Seok Kim

IPC: D01D5/00

CPC classification number: D01D5/0015 ,  D01D1/02 ,  D01D5/003 ,  D01D5/0069 ,  D01F1/02 ,  D01F9/12 ,  D01F9/20 ,  D01F9/328 ,  D04H1/728 ,  H01M4/587 ,  H01M10/0525

Abstract: Provided herein are nanofibers comprising carbon precursors, nanofibers comprising carbon matrices, and processes for preparing the same. In specific examples, provided herein are high performance lithium ion battery anodic nanofibers comprising non-aggregated silicon domains in a continuous carbon matrix.

Abstract translation: 本文提供了包含碳前体，包含碳基质的纳米纤维的纳米纤维及其制备方法。 在具体实例中，本文提供了包括连续碳基质中的非聚集硅结构域的高性能锂离子电池阳极纳米纤维。