Patents by Inventor Qingwen Li
Qingwen Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12276048Abstract: A high-power bidirectional-driven bionic muscle fiber as well as a preparation method and use thereof are provided. The bionic muscle fiber includes a matrix fiber and an object material layer coating the matrix fiber, where the matrix material is capable of emitting heat after electrification, and the object material layer includes a liquid crystal elastomer (LCE); the bionic muscle fiber is excessively twisted to form a helical barrel-like structure. The bionic muscle fiber provided by the present application improves the mechanical property of the LCE, shows large work capability and drive quantity, and has an realize rapid response and work at high frequency. The contraction of the fiber can be controlled by changing voltage. Furthermore, the bionic muscle fiber exhibits a bidirectional driving feature that can recover without stress. In addition, the cyclic work of the fiber is greater than zero.Type: GrantFiled: November 4, 2022Date of Patent: April 15, 2025Assignee: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO), CHINESE ACADEMY OF SCIENCESInventors: Jiangtao Di, Bo Cui, Qingwen Li
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Publication number: 20250093290Abstract: An electrochemical artificial muscle system and an electrochemical artificial muscle testing device are provided. The electrochemical artificial muscle system includes a working electrode including a conductive yarn having a helical structure; a counter electrode containing selected metal elements; an electrolyte including an ionic liquid containing selected ions, the selected ions including the selected metal elements; where the working electrode and the counter electrode are all in contact with the electrolyte. The artificial muscle system based on an aluminum ion battery system has a contractile retention (catch state) characteristic, i.e., artificial muscle yarns contract when a voltage is applied, and after the voltage is removed, the contraction state of the artificial muscle yarn is remained, within almost no any decay within 450 s.Type: ApplicationFiled: December 9, 2022Publication date: March 20, 2025Applicant: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO) , CHINESE ACADEMY OF SCIENCESInventors: Jiangtao DI, Ming REN, Panpan XU, Qingwen LI
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Publication number: 20250092533Abstract: A device and method for preparing an aligned carbon nanotube (CNT) fiber through electrochemical stretching. The method comprises: constructing an electrochemical reaction system by using an original CNT fiber as a working electrode stretching, a counter electrode, a reference electrode, and an electrolyte, applying a selected stretch stress to the original CNT fiber for electrochemical stretching while powering on the electrochemical reaction system so that ions in the electrolyte are embedded into the original CNT fiber, and the orientation of the carbon nanotube is generated due to the action of the stretch stress under the state of expansion; and powering off the electrochemical reaction system while maintaining the application of the selected stretch stress, so that the ions in the electrolyte are released, thereby obtaining a highly aligned CNT fiber.Type: ApplicationFiled: April 29, 2022Publication date: March 20, 2025Applicant: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO) , CHINESE ACADEMY OF SCIENCESInventors: Jiangtao DI, Yulian WANG, Yueran ZHAO, Qingwen LI
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Patent number: 12234551Abstract: A carbon nanotube preparation system, including: a pre-growth tube for an early pre-reaction of raw materials before generation of carbon nanotubes; an atomizer for atomizing the carbon nanotube raw materials and then spraying the atomized raw materials into the pre-growth tube; the atomizer is provided at the front end of the pre-growth tube, and has a spray output tube that extends into the pre-growth tube; a growth tube for generating carbon nanotubes and continuous growth of the generated carbon nanotubes; the front end of the growth tube is hermetically connected to the rear end of the pre-growth tube; and a gas curtain generator for forming a gas curtain enclosing the atomized raw materials around the outlet of the spray output tube, and the gas curtain extends parallel to the extension direction of the pre-growth tube; the gas curtain generator is provided inside the pre-growth tube.Type: GrantFiled: March 26, 2018Date of Patent: February 25, 2025Assignee: SUZHOU JERNANO CARBON CO., LTD.Inventors: Zhenzhong Yong, Qingwen Li, Hehua Jin, Da Li, Zhi Li
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Publication number: 20250059685Abstract: The present application discloses a bionic neuromuscular fiber as well as a preparation method and use thereof. The bionic neuromuscular fiber comprises a carbon nanotube fiber core, an intermediate layer, a substrate layer and a sensing layer which are coaxially and successively sheathed from inside to outside, and is twisted to form a helical shape; the intermediate layer and the substrate layer are both made of polymer materials, and the thermal expansion coefficient of the intermediate layer is larger than that of the substrate layer; the sensing layer comprises a carbon-based conductive material at least containing MXene.Type: ApplicationFiled: November 4, 2022Publication date: February 20, 2025Applicant: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO) , CHINESE ACADEMY OF SCIENCESInventors: Jiangtao DI, Lizhong DONG, Qingwen LI
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Publication number: 20250011977Abstract: A high-power bidirectional-driven bionic muscle fiber as well as a preparation method and use thereof are provided. The bionic muscle fiber includes a matrix fiber and an object material layer coating the matrix fiber, where the matrix material is capable of emitting heat after electrification, and the object material layer includes a liquid crystal elastomer (LCE); the bionic muscle fiber is excessively twisted to form a helical barrel-like structure. The bionic muscle fiber provided by the present application improves the mechanical property of the LCE, shows large work capability and drive quantity, and has an realize rapid response and work at high frequency. The contraction of the fiber can be controlled by changing voltage. Furthermore, the bionic muscle fiber exhibits a bidirectional driving feature that can recover without stress. In addition, the cyclic work of the fiber is greater than zero.Type: ApplicationFiled: November 4, 2022Publication date: January 9, 2025Applicant: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO) , CHINESE ACADEMY OF SCIENCESInventors: Jiangtao DI, Bo CUI, Qingwen LI
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Patent number: 12157670Abstract: A method for transferring a carbon nanotubes aqueous phase dispersion into an organic phase dispersion includes: providing the carbon nanotubes aqueous dispersion; mixing the carbon nanotubes aqueous dispersion with a first solvent to obtain a first suspension, where the first solvent includes a hydrophilic organic solvent; mixing the first suspension with a second solvent to form two stratified phases, allow to obtain a second suspension, where the second solvent includes a hydrophobic organic solvent; mixing the second suspension with a third solvent to obtain a third suspension; and subjecting the second suspension or the third suspension to dispersion treatment to obtain a carbon nanotubes organic dispersion, thereby realizing solvent transfer of the carbon nanotubes dispersion from aqueous to organic phase. The method can transfer the carbon nanotubes aqueous dispersion into the organic dispersion, and the transfer efficiency is 70%-95%.Type: GrantFiled: March 20, 2023Date of Patent: December 3, 2024Assignee: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO) , CHINESE ACADEMY OF SCIENCESInventors: Song Qiu, Leitao Cao, Yahui Li, Hehua Jin, Qingwen Li
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Publication number: 20240327220Abstract: A method for transferring a carbon nanotubes aqueous phase dispersion into an organic phase dispersion includes: providing the carbon nanotubes aqueous dispersion; mixing the carbon nanotubes aqueous dispersion with a first solvent to obtain a first suspension, where the first solvent includes a hydrophilic organic solvent; mixing the first suspension with a second solvent to form two stratified phases, allow to obtain a second suspension, where the second solvent includes a hydrophobic organic solvent; mixing the second suspension with a third solvent to obtain a third suspension; and subjecting the second suspension or the third suspension to dispersion treatment to obtain a carbon nanotubes organic dispersion, thereby realizing solvent transfer of the carbon nanotubes dispersion from aqueous to organic phase. The method can transfer the carbon nanotubes aqueous dispersion into the organic dispersion, and the transfer efficiency is 70%-95%.Type: ApplicationFiled: March 20, 2023Publication date: October 3, 2024Applicant: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO) , CHINESE ACADEMY OF SCIENCESInventors: Song QIU, Leitao CAO, Yahui LI, Hehua JIN, Qingwen LI
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Patent number: 11970355Abstract: The present disclosure relates to a collection device and a preparation system, including a pre-adjustment mechanism which is disposed in a housing and configured to adjust at least one bundle of carbon nanotube aggregates, and includes a first pre-adjustment sub-mechanism and a second pre-adjustment sub-mechanism for adjusting carbon nanotube aggregations along a first direction and a second direction, respectively; a winding mechanism for winding and collecting the carbon nanotube aggregates passing through the pre-adjustment mechanism.Type: GrantFiled: March 26, 2018Date of Patent: April 30, 2024Assignee: SUZHOU JERNANO CARBON CO., LTD.Inventors: Da Li, Hehua Jin, Qingwen Li, Zhenzhong Yong, Maolin Liu, Dianli Hu
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Patent number: 11639306Abstract: The present disclosure relates to a curved glass thermal forming device and method. The curved glass thermal forming device includes a furnace body having a feed port and a discharge port, wherein the furnace body includes a heating segment, a forming segment and a cooling segment, a rotary table capable of rotating and used for circularly conveying glass to the heating segment, the forming segment and the cooling segment in sequence is arranged in the furnace body, a plurality of female dies for carrying glass are arranged on the rotary table so as to cooperate with a male die in the forming segment to perform press fit forming on the glass.Type: GrantFiled: May 24, 2018Date of Patent: May 2, 2023Assignees: TUNGHSU TECHNOLOGY GROUP CO., LTD., TUNGHSU GROUP CO., LTD.Inventors: Qing Li, Qingwen Li, Xianyou Jin, Zhaoting Li
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Patent number: 11225581Abstract: A carbon nanotube aligned film as well as a preparation method and application thereof are disclosed. The preparation method includes: providing a carbon nanotube dispersion solution comprising a selected carbon nanotube, a polymer as a carbon nanotube dispersing agent and binding to the selected carbon nanotube, an aromatic molecule binding to the selected carbon nanotube and allowing the surface of the selected carbon nanotube to have the same charges and an organic solvent being at least used for cooperating with the rest components of the dispersion solution to form uniform dispersion solution; and introducing a water phase layer to the upper surface of the dispersion solution to form a double-layer liquid phase system, partially or completely inserting a base into the double-layer liquid system, and then pulling out the base so as to form the carbon nanotube aligned film on the surface of the base.Type: GrantFiled: October 16, 2018Date of Patent: January 18, 2022Assignee: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO), CHINESE ACADEMY OF SCIENCESInventors: Bing Gao, Song Qiu, Hehua Jin, Qingwen Li
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Publication number: 20210309867Abstract: A carbon nanotube aligned film as well as a preparation method and application thereof are disclosed. The preparation method includes: providing a carbon nanotube dispersion solution comprising a selected carbon nanotube, a polymer as a carbon nanotube dispersing agent and binding to the selected carbon nanotube, an aromatic molecule binding to the selected carbon nanotube and allowing the surface of the selected carbon nanotube to have the same charges and an organic solvent being at least used for cooperating with the rest components of the dispersion solution to form uniform dispersion solution; and introducing a water phase layer to the upper surface of the dispersion solution to form a double-layer liquid phase system, partially or completely inserting a base into the double-layer liquid system, and then pulling out the base so as to form the carbon nanotube aligned film on the surface of the base.Type: ApplicationFiled: October 16, 2018Publication date: October 7, 2021Applicant: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS (SINANO), CHINESE ACADEMY OF SCIENCESInventors: Bing GAO, Song QIU, Hehua JIN, Qingwen LI
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Publication number: 20210163252Abstract: The present disclosure relates to a collection device and a preparation system, including a pre-adjustment mechanism which is disposed in a housing and configured to adjust at least one bundle of carbon nanotube aggregates, and includes a first pre-adjustment sub-mechanism and a second pre-adjustment sub-mechanism for adjusting carbon nanotube aggregations along a first direction and a second direction, respectively; a winding mechanism for winding and collecting the carbon nanotube aggregates passing through the pre-adjustment mechanism.Type: ApplicationFiled: March 26, 2018Publication date: June 3, 2021Inventors: Da LI, Hehua JIN, Qingwen LI, Zhenzhong YONG, Maolin LIU, Dianli HU
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Publication number: 20210025055Abstract: The disclosure relates to a carbon nanotube preparation system, comprising: a pre-growth tube for an early pre-reaction of raw materials before generation of carbon nanotubes; an atomizer for atomizing the carbon nanotube raw materials and then spraying the atomized raw materials into the pre-growth tube; the atomizer is provided at the front end of the pre-growth tube, and has a spray output tube that extends into the pre-growth tube; a growth tube for generating carbon nanotubes and continuous growth of the generated carbon nanotubes; the front end of the growth tube is hermetically connected to the rear end of the pre-growth tube; and an air curtain generator for forming an air curtain enclosing an atomizing air flow around the outlet of the spray output tube, and the air curtain extends parallel to the extension direction of the pre-growth tube; the air curtain generator is provided inside the pre-growth tube.Type: ApplicationFiled: March 26, 2018Publication date: January 28, 2021Inventors: Zhenzhong YONG, Qingwen LI, Hehua JIN, Da LI, Zhi LI
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Patent number: 10676361Abstract: The disclosure discloses a method and reagent for improving a yield of selective dispersion of semiconducting carbon nanotubes.Type: GrantFiled: April 28, 2017Date of Patent: June 9, 2020Assignee: Suzhou Institute of Nano-Tech and Nano-Bionics (Sinano), Chinese Academy of SciencesInventors: Qingwen Li, Dan Liu, Song Qiu, Jin Zhang, Hehua Jin, Hongbo Li
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Publication number: 20200109077Abstract: The present disclosure relates to a curved glass thermal forming device and method. The curved glass thermal forming device includes a furnace body having a feed port and a discharge port, wherein the furnace body includes a heating segment, a forming segment and a cooling segment, a rotary table capable of rotating and used for circularly conveying glass to the heating segment, the forming segment and the cooling segment in sequence is arranged in the furnace body, a plurality of female dies for carrying glass are arranged on the rotary table so as to cooperate with a male die in the forming segment to perform press fit forming on the glass.Type: ApplicationFiled: May 24, 2018Publication date: April 9, 2020Applicants: TUNGHSU TECHNOLOGY GROUP CO., LTD, TUNGHSU GROUP CO., LTD.Inventors: Qing LI, Qingwen LI, Xianyou JIN, Zhaoting LI
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Publication number: 20190218100Abstract: The disclosure discloses a method and reagent for improving a yield of selective dispersion of semiconducting carbon nanotubes.Type: ApplicationFiled: April 28, 2017Publication date: July 18, 2019Applicant: Suzhou Institute of Nano-Tech and Nano-Bionics (Sinano), Chinese Academy of SciencesInventors: Qingwen LI, Dan LIU, Song QIU, Jin ZHANG, Hehua JIN, Hongbo LI
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Publication number: 20190039350Abstract: The invention discloses the application of carbon nanotube assemblies to the preparation of a nanocarbon impact-resistant material. The carbon nanotube assembly is a macrostructure provided with at least one continuous surface, a plurality of carbon nanotubes are densely distributed in the continuous surface, and at least partial segments of at least part of the multiple carbon nanotubes continuously extend in the continuous surface. The invention further discloses a preparation method of the nanocarbon impact-resistant material. The nanocarbon impact-resistant material has an excellent protection effect, has the advantages of being light, good in flexibility, wide in tolerable temperature range, capable of being bent freely, good in fitness, breathable, adaptable to heat-moisture balance of human bodies, good in wearing comfort and the like, and can be widely applied to bullet-proof materials, stab-proof materials and explosion-proof materials.Type: ApplicationFiled: January 9, 2017Publication date: February 7, 2019Inventors: Dongmei Hu, Qingwen Li
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Patent number: 9290387Abstract: A structure for preparing an substantially aligned array of carbon nanotubes include a substrate having a first side and a second side, a buffer layer on the first side of the substrate, a catalyst on the buffer layer, and a plurality of channels through the structure for allowing a gaseous carbon source to enter the substrate at the second side and flow through the structure to the catalyst. After preparing the array, a fiber of carbon nanotubes may be spun from the array. Prior to spinning, the array can be immersed in a polymer solution. After spinning, the polymer can be cured.Type: GrantFiled: August 28, 2007Date of Patent: March 22, 2016Assignee: Los Alamos National Security, LLCInventors: Yuntian T. Zhu, Paul Arendt, Qingwen Li, Xiefie Zhang
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Publication number: 20150040532Abstract: A fiber of carbon nanotubes was prepared by a wet-spinning method involving drawing carbon nanotubes away from a substantially aligned, supported array of carbon nanotubes to form a ribbon, wetting the ribbon with a liquid, and spinning a fiber from the wetted ribbon. The liquid can be a polymer solution and after forming the fiber, the polymer can be cured. The resulting fiber has a higher tensile strength and higher conductivity compared to dry-spun fibers and to wet-spun fibers prepared by other methods.Type: ApplicationFiled: April 29, 2014Publication date: February 12, 2015Inventors: Yuntian T. Zhu, Paul Arendt, Xiefel Zhang, Qingwen Li, Lei Fu, Lianxi Zheng