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：US20220185985A1

公开(公告)日：2022-06-16

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

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：US20220069290A1

公开(公告)日：2022-03-03

申请号：US17408841

申请日：2021-08-23

Applicant: Aspen Aerogels, Inc.

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

IPC: H01M4/36 ,  C01B32/05 ,  H01M4/38 ,  H01M4/587 ,  H01M10/0525

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 a polyimide-derived carbon aerogel. The carbon aerogel may further include 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：US11130895B2

公开(公告)日：2021-09-28

申请号：US15270759

申请日：2016-09-20

Applicant: ASPEN AEROGELS,INC.

Inventor： Roxana Trifu ,  Redouane Begag ,  George Gould ,  Shannon White

IPC: C09K5/06 ,  C08J9/28 ,  C08J9/36 ,  C08K5/01 ,  C08K5/053 ,  C08K3/16 ,  C08J9/00 ,  C01B33/158 ,  B32B5/18 ,  C08J9/42

Abstract: The present disclosure can provide aerogel compositions which have a thermal storage capacity, and which are durable and easy to handle. The present disclosure can provide aerogel compositions which include PCM coatings, particle mixtures, or PCM materials confined within the porous network of an aerogel composition. The present disclosure can provide methods for producing aerogel compositions by coating an aerogel composition with PCM materials, by forming particle mixtures with PCM materials, or by confining PCM materials within the porous network of an aerogel composition.

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：US20240274795A1

公开(公告)日：2024-08-15

申请号：US18625474

申请日：2024-04-03

Applicant: Aspen Aerogels,Inc.

Inventor： Wei Xie ,  Zhifei Li ,  Roxana Trifu ,  Harris Miller

IPC: H01M4/36 ,  C09C1/28 ,  C09C3/12 ,  H01M4/02 ,  H01M4/38 ,  H01M4/587

CPC classification number: H01M4/364 ,  C09C1/28 ,  C09C3/12 ,  H01M4/386 ,  H01M4/587 ,  C01P2002/82 ,  C01P2004/03 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/40 ,  H01M2004/023

Abstract: Silicon nanoparticles and methods for preparation of silicon nanoparticles are provided. Embodiments include a method for grinding silicon. Methods include providing silicon material, providing a grinding liquid including a polar solvent, and grinding the silicon material in the presence of the grinding liquid to yield silicon nanoparticles. Grinding the silicon in the presence of the grinding liquid can chemically functionalize the silicon material as the nanoparticles are formed to provide stable chemically functionalized nanoparticles.

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.