公开(公告)号：US12195911B2

公开(公告)日：2025-01-14

申请号：US16877046

申请日：2020-05-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuma Oikawa ,  Tooru Wada ,  Shigeki Sakaguchi ,  Takashi Kubo ,  Takashi Tsuruta ,  Shigeaki Sakatani ,  Daido Komyoji

IPC: H01M10/658 ,  D06M11/79 ,  H01M10/0525 ,  C01B33/158

Abstract: A manufacturing method of a heat insulating sheet of the present disclosure includes a composite generating step of impregnating a nonwoven fiber with a basic sol prepared to generate a composite of a hydrogel-nonwoven fiber, the basic sol being prepared by adding carbonate ester to a water glass composition; and a drying step of drying a liquid contained in the composite at a temperature lower than a critical temperature of the liquid and a pressure lower than a critical pressure of the liquid to remove the liquid from the composite. A heat insulating sheet according to the present disclosure includes an aerogel and a nonwoven fiber, and has a compression rate at 0.30 MPa to 5.0 MPa of 40% or less. In an electronic device of the present disclosure, the heat insulating sheet is disposed between an electronic component and a housing. In a battery unit of the present disclosure, the heat insulating sheet is disposed between batteries. This provides a heat insulating sheet that can be used under a high load and a manufacturing method thereof, and an electronic device and a battery unit including the same.

公开(公告)号：US12186721B2

公开(公告)日：2025-01-07

申请号：US17429116

申请日：2020-09-03

Applicant: LG CHEM, LTD.

Inventor： Tae Gyeong Kang ,  Se Won Baek ,  Bong June Kim

IPC: B01J13/00 ,  B01J3/00 ,  C01B33/155 ,  C01B33/158 ,  C01B33/159

Abstract: Provided is a method for manufacturing an aerogel blanket, and an aerogel blanket having uniform thermal conductivity inside a substrate, wherein the method is capable of simplifying manufacturing equipment by performing gelation while rotating a substrate for a blanket into which a catalyzed sol is impregnated, improving manufacturing efficiency by controlling manufacturing time regardless of the thickness of the aerogel blanket, and improving thermal conductivity by uniformly forming aerogel in the substrate for a blanket.

公开(公告)号：US20240360363A1

公开(公告)日：2024-10-31

申请号：US18762498

申请日：2024-07-02

Applicant: Aspen Aerogels, Inc.

Inventor： Owen Evans ,  Wendell Rhine ,  Jon Nebo ,  Jon Abeles, JR.

IPC: C09K21/02 ,  B01J13/00 ,  C01B25/26 ,  C01B33/158 ,  C01B33/26 ,  C01F5/14 ,  C01F7/18 ,  C09K21/12

CPC classification number: C09K21/02 ,  B01J13/0091 ,  C01B25/26 ,  C01B33/1585 ,  C01B33/26 ,  C01F5/14 ,  C01F7/18 ,  C09K21/12

Abstract: Aerogel materials, aerogel composites, and the like may be improved by the addition of opacifiers to reduce the radiative component of heat transfer. Such aerogel materials, aerogel composites, and the like may also be treated to impart or improve hydrophobicity. Such aerogel materials and methods of manufacturing the same are described.

公开(公告)号：US20240271480A1

公开(公告)日：2024-08-15

申请号：US18499451

申请日：2023-11-01

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Laurent Pilon ,  Bruce S. Dunn ,  Sarah H. Tolbert ,  Michal Marszewski ,  Yan Yan ,  Sophia C. King ,  Esther H. Lan ,  Danielle Butts ,  Patricia E. McNeil

IPC: E06B3/67 ,  C01B33/154 ,  C01B33/158 ,  C03C27/04 ,  E06B3/66 ,  E06B3/663

CPC classification number: E06B3/6715 ,  C01B33/1543 ,  C01B33/1585 ,  C03C27/048 ,  E06B3/6612 ,  E06B3/66342

Abstract: Materials and methods for preparing thick, mesoporous silica monolithic slabs and coatings with high transparency and low thermal conductivity are provided. The transparent silica materials are particularly suited for window or solar applications including insulation barriers for existing or new single, double pane windows or glass panel building components. The template-free, water-based sol-gel methods produce slabs or coatings by gelation of a colloidal suspension of silica or other oxide nanoparticles or by ambigel formation and then ageing and drying the gels under ambient conditions. Solvent exchanges with nonpolar, low-surface-tension solvents help to avoid cracking caused by drying stress. Mesoporous slabs can also be cast in molds on perfluorocarbon liquid substrates to reduce adhesion and enable gels to shrink freely during aging and drying without incurring significant stress that could cause fracture.

公开(公告)号：US20240270920A1

公开(公告)日：2024-08-15

申请号：US18414497

申请日：2024-01-17

Applicant: YANGTZE DELTA REGION INSTITUTE (QUZHOU) , UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Jiaxuan LIAO ,  Xin LONG ,  Lichun ZHOU

IPC: C08J9/28 ,  C01B33/158 ,  C08G77/20 ,  C08G77/392

CPC classification number: C08J9/28 ,  C01B33/1585 ,  C08G77/20 ,  C08G77/392 ,  C01P2004/03 ,  C08J2201/0502 ,  C08J2205/026 ,  C08J2383/04

Abstract: An ultrahigh-strength SiO2 aerogel with alternately configured soft chains and hard cores, and a method for preparing same are provided. According to the present invention, firstly, octa-olefin functionalized silsesquioxane and a mercapto silane coupling agent are dissolved in an organic solvent under a protective gas to perform a catalytic reaction, and then the reaction system is dried to obtain a white powder; secondly, the white powder is dissolved in an alcohol solution, the mixture is stirred until the white powder is completely dissolved, and then an acid-catalyzed hydrolysis reaction and a heat-induced gelation reaction under an alkaline environment are performed to obtain a wet gel; and finally, the gel is subjected to aging, surface modification, displacement and vacuum lyophilization to obtain the ultrahigh-strength SiO2 aerogel with alternately configured soft chains and hard cores.

公开(公告)号：US12049405B2

公开(公告)日：2024-07-30

申请号：US17775415

申请日：2020-11-06

Applicant: EMPA Eidgenoessische Materialpruefungs- und Forschungsanstalt

Inventor： Shanyu Zhao ,  Gilberto De Freitas Siqueira ,  Wim Malfait ,  Matthias Koebel ,  Christopher Ubert ,  David Norris

IPC: C01B33/16 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  C01B33/158 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322 ,  C09D11/36

CPC classification number: C01B33/1585 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322 ,  C09D11/36

Abstract: An ink composition for additive manufacture of silica aerogel objects essentially consists of a gellable silica sol containing an admixture of 30 to 70 vol. % of a mesoporous silica powder in a base solvent. The mesoporous silica powder has a particle size range of 0.001 to 1 mm and a tap density of 30 to 200 kg/m3 and comprises at least 10% by weight of silica aerogel powder. The composition has a yield stress in the range of 30 to 3000 Pa and a viscosity of 5 to 150 Pa·s at a shear rate of 50 s-1. Furthermore, the composition has shear thinning properties defined as a reduction in viscosity by a factor between 10 and 103 for an increase in shear rate by a factor of 104 to 105. A method of additive manufacturing of a three-dimensional silica aerogel object by direct ink writing comprises providing such ink composition, forcing the same through a convergent nozzle, thereby forming a jet of the ink composition which is directed in such manner as to form a three-dimensional object by additive manufacturing. After initiating and carrying out gelation of the gellable silica sol constituting said object, a drying step yields the desired three-dimensional silica aerogel object.

公开(公告)号：US12030782B2

公开(公告)日：2024-07-09

申请号：US16754545

申请日：2019-02-14

Applicant: LG CHEM, LTD.

Inventor： Young Hun Kim ,  Je Kyun Lee ,  Myung Eun Oh

IPC: C01B33/158 ,  B01J13/00 ,  C01B33/159

CPC classification number: C01B33/1585 ,  B01J13/0091 ,  C01B33/159 ,  C01P2004/60 ,  C01P2006/12

Abstract: Provided is a method for producing hydrophobic silica aerogel granules and hydrophobic silica aerogel granules produced thereby, the hydrophobic silica aerogel granules having a suppressed level of specific surface area deterioration and scattering properties. In the method for producing the hydrophobic silica aerogel granules, surface modification, gelation, and solvent substitution can be simultaneously performed in one step, thereby decreasing production time and increasing productivity. Also, by adjusting the addition amount of a non-polar organic solvent when proceeding with a reaction, hydrophobic silica aerogel granules with suppressed scattering properties can be produced. In addition, the hydrophobic silica aerogel granules are silica aerogel particles induced to agglomerate with each other through physical bonding, so that there is an advantage in that the granules can be easily changed into a powder form, thereby having excellent industrial applicability.

公开(公告)号：US11866324B2

公开(公告)日：2024-01-09

申请号：US17056872

申请日：2019-11-27

Applicant: LG CHEM, LTD.

Inventor： Tae Gyeong Kang ,  Se Won Baek

IPC: C01B33/158 ,  B01J13/00 ,  C01B33/141 ,  C01B33/152

CPC classification number: C01B33/1585 ,  B01J13/0091 ,  C01B33/141 ,  C01B33/152

Abstract: A method for manufacturing an aerogel blanket, the method capable of simplifying manufacturing equipment by performing gelation while rotating a reaction vessel, improving manufacturing efficiency by controlling manufacturing time regardless of the thickness of an aerogel blanket and improving thermal conductivity by uniformly forming an aerogel in a substrate for blanket.

公开(公告)号：US20230348286A1

公开(公告)日：2023-11-02

申请号：US18195367

申请日：2023-05-09

Applicant: Aspen Aerogels, Inc.

Inventor： Owen Evans ,  George Gould ,  Kathryn deKrafft ,  David Mihalcik ,  David Baur

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

CPC classification number: C01B33/1585 ,  B01J13/0091 ,  B32B5/18 ,  B32B15/046 ,  B32B27/065 ,  H01M10/658 ,  B32B2266/057 ,  B32B2266/126 ,  B32B2307/302 ,  B32B2307/41 ,  B32B2457/10

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：US20230348284A1

公开(公告)日：2023-11-02

申请号：US17731789

申请日：2022-04-28

Applicant: Taiwan Aerogel Technology Material Co., Ltd.

Inventor： Jean-Hong CHEN ,  Shiu-Shiu CHEN

IPC: C01B33/158 ,  C01B33/145 ,  C01B33/148 ,  C01B33/155 ,  C08J5/24 ,  F16L59/06

CPC classification number: C01B33/1585 ,  C01B33/145 ,  C01B33/148 ,  C01B33/155 ,  C08J5/248 ,  F16L59/06 ,  C08J2363/00 ,  C08J2379/08

Abstract: The present invention discloses the an aerogel material featuring of low thermal conductivity, low dielectric constant (low-DK) and low dielectric-loss (low-DF) and a preparation method therefor. The method comprises steps of: (1) mix and hydrolysis, (2) dispersion and condensation, (3) molding, and (4) drying. The prepared pure aerogel or fiber/aerogel composite is further processed by steps of: (5) polymer solution impregnating, (6) solvent drying and (7) crosslinking-solidifying to obtain a polymer/aerogel composite or a polymer/fiber/aerogel composite featuring of high strength, low thermal conductivity, low-DK and low-DF. The method provided by the present invention does not involve highly conductive solvents or additives, and a highly porous structure is formed so that the dielectric constant and dielectric loss of the aerogel material are significantly reduced, suitable for 5G communications, microwave circuits, protection and insulation for electric vehicle lithium battery modules.