公开(公告)号：US20240376273A1

公开(公告)日：2024-11-14

申请号：US18776930

申请日：2024-07-18

Applicant: Aspen Aerogels, Inc.

Inventor： Nicholas Leventis ,  Roxana Trifu ,  Redouance Begag ,  George L. Gould ,  Nicholas A. Zafiropoulos ,  Harris R. Miller

IPC: C08J3/075 ,  C01B32/05

Abstract: The present disclosure is directed to methods of forming polyamic acid and polyimide gels in water. The resulting polyamic acid and polyimide gels may be converted to aerogels, which may further be converted to carbon aerogels. Such carbon aerogels have the same physical properties as carbon aerogels prepared from polyimide aerogels obtained according to conventional methods, i.e., organic solvent-based. The disclosed methods are advantageous in reducing or avoiding costs associated with use and disposal of potentially toxic solvents and byproducts. Gel materials prepared according to the disclosed methods are suitable for use in environments involving electrochemical reactions, for example as an electrode material within a lithium-ion battery.

公开(公告)号：US12077639B2

公开(公告)日：2024-09-03

申请号：US17546761

申请日：2021-12-09

Applicant: Aspen Aerogels, Inc.

Inventor： Nicholas Leventis ,  Roxana Trifu ,  Redouane Begag ,  George L. Gould ,  Nicholas A. Zafiropoulos ,  Harris R. Miller

IPC: C08J3/075 ,  C01B32/05

CPC classification number: C08J3/075 ,  C01B32/05 ,  C08J2379/08

Abstract: The present disclosure is directed to methods of forming polyamic acid and polyimide gels in water. The resulting polyamic acid and polyimide gels may be converted to aerogels, which may further be converted to carbon aerogels. Such carbon aerogels have the same physical properties as carbon aerogels prepared from polyimide aerogels obtained according to conventional methods, i.e., organic solvent-based. The disclosed methods are advantageous in reducing or avoiding costs associated with use and disposal of potentially toxic solvents and byproducts. Gel materials prepared according to the disclosed methods are suitable for use in environments involving electrochemical reactions, for example as an electrode material within a lithium-ion battery.

公开(公告)号：US20240254301A1

公开(公告)日：2024-08-01

申请号：US18435183

申请日：2024-02-07

Applicant: Aspen Aerogels, Inc.

Inventor： Redouane Begag ,  Roxana Trifu ,  Nicholas A. Zafiropoulos ,  Harris R. Miller ,  George L. Gould ,  Nicholas Leventis

IPC: C08J9/28 ,  C08G73/10 ,  C08J9/36 ,  C08K5/09 ,  C08K5/3432

CPC classification number: C08J9/286 ,  C08G73/1007 ,  C08G73/1067 ,  C08G73/1085 ,  C08J9/36 ,  C08K5/09 ,  C08K5/3432 ,  C08J2201/0422 ,  C08J2201/0482 ,  C08J2205/026 ,  C08J2205/042 ,  C08J2205/044 ,  C08J2379/08

Abstract: The present disclosure is directed to methods of forming polyimide gels. The methods generally include forming a polyamic acid and dehydrating the polyamic acid with a dehydrating agent in the presence of water. The resulting polyimide gels may be converted to polyimide or carbon xerogels or aerogels. The methods are advantageous in providing rapid or even instantaneous gelation, which may be particularly useful in formation of beads comprising the polyimide gels. Polyimide or carbon gel materials prepared according to the disclosed method are suitable for use in environments containing electrochemical reactions, for example as an electrode material within a lithium-ion battery.

公开(公告)号：US11932745B2

公开(公告)日：2024-03-19

申请号：US17546529

申请日：2021-12-09

Applicant: Aspen Aerogels, Inc.

Inventor： Redouane Begag ,  Roxana Trifu ,  Nicholas A. Zafiropoulos ,  Harris R. Miller ,  George L. Gould ,  Nicholas Leventis

IPC: C01B32/00 ,  C04B35/524 ,  C04B35/634 ,  C04B38/00 ,  C08G73/00 ,  C08G73/10 ,  C08J9/28 ,  C08J9/36 ,  C08K5/09 ,  C08K5/3432

CPC classification number: C08J9/286 ,  C08G73/1007 ,  C08G73/1067 ,  C08G73/1085 ,  C08J9/36 ,  C08K5/09 ,  C08K5/3432 ,  C08J2201/0422 ,  C08J2201/0482 ,  C08J2205/026 ,  C08J2205/042 ,  C08J2205/044 ,  C08J2379/08

Abstract: The present disclosure is directed to methods of forming polyimide gels. The methods generally include forming a polyamic acid and dehydrating the polyamic acid with a dehydrating agent in the presence of water. The resulting polyimide gels may be converted to polyimide or carbon xerogels or aerogels. The methods are advantageous in providing rapid or even instantaneous gelation, which may be particularly useful in formation of beads comprising the polyimide gels. Polyimide or carbon gel materials prepared according to the disclosed method are suitable for use in environments containing electrochemical reactions, for example as an electrode material within a lithium-ion battery.

公开(公告)号：US11648521B2

公开(公告)日：2023-05-16

申请号：US16803348

申请日：2020-02-27

Applicant: Aspen Aerogels, Inc.

Inventor： Nicholas A. Zafiropoulos ,  Roxana Trifu ,  Redouane Begag ,  Wendell E. Rhine ,  George L. Gould ,  Alexei A. Erchak ,  Harris R. Miller ,  Nicholas Leventis

IPC: B01J13/00 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/583 ,  H01M4/02

CPC classification number: B01J13/0091 ,  H01M4/386 ,  H01M4/583 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/023

Abstract: Nanoporous carbon-based scaffolds or structures, and specifically carbon aerogels and their manufacture and use thereof are provided. Embodiments include a silicon-doped anode material for a lithium-ion battery, where the anode material includes beads of polyimide-derived carbon aerogel. The carbon aerogel includes silicon particles and accommodates expansion of the silicon particles during lithiation. The anode material provides optimal properties for use within the lithium-ion battery.

公开(公告)号：US20210163303A1

公开(公告)日：2021-06-03

申请号：US17106940

申请日：2020-11-30

Applicant: Aspen Aerogels, Inc.

Inventor： Owen R. Evans ,  George L. Gould ,  Kathryn Elizabeth DeKrafft ,  David J. Mihalcik ,  David E. Baur

IPC: C01B33/158 ,  B01J13/00 ,  B32B15/04 ,  B32B5/18 ,  H01M10/658 ,  B32B27/06

Abstract: Aerogel-based components and systems for electric vehicle thermal management are provided. Exemplary embodiments include a heat control member. The heat control member can include reinforced aerogel compositions that are durable and easy to handle, have favorable performance for use as heat control members and thermal barriers for batteries, have favorable insulation properties, and have favorable reaction to fire, combustion and flame-resistance properties. Also provided are methods of preparing or manufacturing such reinforced aerogel compositions. In certain embodiments, the composition has a silica-based aerogel framework reinforced with a fiber and including one or more opacifying additives.

公开(公告)号：US20230294061A1

公开(公告)日：2023-09-21

申请号：US18131010

申请日：2023-04-05

Applicant: Aspen Aerogels, Inc.

Inventor： Nicholas Anthony Zafiropoulos ,  Roxana Trifu ,  Redouane Begag ,  Wendell E. Rhine ,  George L. Gould ,  Alexei A. Erchak ,  Harris R. Miller ,  Nicholas Leventis

IPC: B01J13/00 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/583

CPC classification number: B01J13/0091 ,  H01M4/386 ,  H01M4/583 ,  H01M10/0525 ,  H01M2004/023

Abstract: Nanoporous carbon-based scaffolds or structures, and specifically carbon aerogels and their manufacture and use thereof are provided. Embodiments include a silicon-doped anode material for a lithium-ion battery, where the anode material includes beads of polyimide-derived carbon aerogel. The carbon aerogel includes silicon particles and accommodates expansion of the silicon particles during lithiation. The anode material provides optimal properties for use within the lithium-ion battery.

公开(公告)号：US20230134383A1

公开(公告)日：2023-05-04

申请号：US18147132

申请日：2022-12-28

Applicant: Aspen Aerogels, Inc.

Inventor： Owen R. Evans ,  Kathryn E. deKrafft ,  Nicholas A. Zafiropoulos ,  Wenting Dong ,  David J. Mihalcik ,  George L. Gould ,  Irene Melnikova

IPC: C08K3/36 ,  C01B33/158 ,  C01B33/159 ,  B01J13/00 ,  C08K3/22 ,  C08K3/34 ,  C08K3/38 ,  C08K3/04

Abstract: The present disclosure provides an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which also has favorable combustion and self-heating properties. Also provided is a method of preparing an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which has favorable combustion and self-heating properties. Further provided is a method of improving the hydrophobicity, the liquid water uptake, the heat of combustion, or the onset of thermal decomposition temperature of an aerogel composition.

公开(公告)号：US20230085627A1

公开(公告)日：2023-03-23

申请号：US18056067

申请日：2022-11-16

Applicant: Aspen Aerogels, Inc.

Inventor： David Mihalcik ,  Kathryn Elizabeth deKrafft ,  Nicholas Anthony Zafiropoulos ,  Owen Richard Evans ,  George L. Gould ,  Wibke Lolsberg

IPC: B01J13/00 ,  C01B33/158 ,  C08K5/00 ,  C08L61/28 ,  C08L75/04

Abstract: The current disclosure provides reinforced aerogel compositions that are durable and easy to handle, have favorable performance in aqueous environments, have favorable insulation properties, and have favorable, reaction to fire, combustion and flame-resistance properties. Also provided are methods of preparing or manufacturing such reinforced aerogel compositions. In certain embodiments, the composition has a silica-based aerogel framework, reinforced with an open-cell macroporous framework, and includes one or more fire-class additives, where the silica-based aerogel framework comprises at least one hydrophobic-bound silicon and the composition or each of its components has desired properties.

公开(公告)号：US11605854B2

公开(公告)日：2023-03-14

申请号：US16826223

申请日：2020-03-21

Applicant: Aspen Aerogels, Inc.

Inventor： Nicholas A. Zafiropoulos ,  George L. Gould

IPC: H01M12/06 ,  H01M4/583 ,  H01M4/42 ,  H01M4/66 ,  H01M4/96 ,  H01M12/08 ,  C01B32/15 ,  H01M4/38 ,  H01M4/86

Abstract: Nanoporous carbon-based scaffolds or structures, and specifically carbon aerogels and their manufacture and use thereof. Embodiments include a cathode material within a lithium-air battery, where the cathode is formed of a binder-free, monolithic, polyimide-derived carbon aerogel. The carbon aerogel includes pores that improve the oxygen transport properties of electrolyte solution and improve the formation of lithium peroxide along the surface and/or within the pores of the carbon aerogel. The cathode and underlying carbon aerogel provide optimal properties for use within the lithium-air battery.