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1. 发明公开

US20240170668A1 HIGH-CONDUCTIVITY SULFUR-BASED POSITIVE ELECTRODE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY 审中-公开
公开(公告)号：US20240170668A1
公开(公告)日：2024-05-23
申请号：US18283458
申请日：2022-03-02
申请人： SHANGHAI JIAO TONG UNIVERSITY
发明人： Jiulin WANG , Jingyu LEI , Huichao LU , Jun YANG
IPC分类号： H01M4/58 , C08F20/44 , H01M4/60 , H01M4/02
CPC分类号： H01M4/5815 , C08F20/44 , H01M4/604 , C08F2810/00 , H01M2004/028
摘要： A high-conductivity sulfur-based positive electrode material for a secondary battery and a secondary battery are provided. The sulfur-based positive electrode material is formed by evenly mixing highly isotactic polyacrylonitrile as a precursor with elemental sulfur and then heating to undergo a chemical reaction. The highly isotactic polyacrylonitrile is synthesized from an acrylonitrile monomer by means of a free radical polymerization or inclusion polymerization reaction under the action of a template agent.

2. 发明授权

US11897979B2 Polyacrylonitrile (PAN) and preparation method and use thereof 有权
公开(公告)号：US11897979B2
公开(公告)日：2024-02-13
申请号：US17811301
申请日：2022-07-07
申请人： Changchun University of Technology
发明人： Zhongyu Fu , Huijie Yan , Huixuan Zhang
IPC分类号： C08F20/44 , C08F220/44 , C08F2/38 , C08F2/44
CPC分类号： C08F20/44 , C08F2/44
摘要： Some embodiments of the disclosure provides polyacrylonitrile (PAN) and a preparation method and use thereof. The method includes the following steps. Mixing raw materials for polymerization to obtain a suspension comprising the PAN. The raw materials include an acrylonitrile monomer, a first auxiliary monomer, a second auxiliary monomer, a polymerization medium, an initiator, a chain transfer agent, and a settling agent. Removing unreacted monomers and unreacted polymerization medium in the suspension to obtain the PAN. After subsequent removal of monomers, removal of a polymerization medium, washing, and drying, a PAN powder is obtained. In some embodiments, the preparation method of the PAN has a wide adjustable range of a PAN copolymerization composition, a low viscosity of a polymerization system, a high concentration of a polymerized monomer, and a strong anti-scaling ability.

3. 发明公开

US20230265223A1 POLYMER, SOLID-STATE ELECTROLYTE, GEL ELECTROLYTE, AND BATTERY 审中-公开
公开(公告)号：US20230265223A1
公开(公告)日：2023-08-24
申请号：US18168745
申请日：2023-02-14
申请人： ZHUHAI COSMX BATTERY CO., LTD.
发明人： Weichao TANG , Suli LI , Wei ZHAO , Junyi LI , Yanming XU
IPC分类号： C08F20/06 , C08F20/44 , H01M10/0565
CPC分类号： C08F20/06 , C08F20/44 , H01M10/0565 , H01M2300/0085 , H01M2300/0082 , H01M2300/0068
摘要： Disclosed are a polymer, a solid-state electrolyte including the polymer, a gel electrolyte, and a battery. The polymer includes a repeating unit A. The repeating unit A has a structure represented by Formula 1. In Formula 1, R1 is selected from H or C1-6 alkyl; R2 is a linking group; R3 is an end-capping group; M is selected from a borate chain segment, an aluminate chain segment, or a phosphate chain segment; and * denotes a linking end. The solid-state electrolyte including the polymer in the present disclosure or the battery including the gel electrolyte has a lower internal resistance, better transmission performance of ions, better cycle performance, a broader electrochemical window, and higher electrochemical stability.

4. 发明公开

US20230235103A1 SULFUR-MODIFIED POLYACRYLONITRILE, ELECTRODE ACTIVE MATERIAL CONTAINING SAME, ELECTRODE FOR SECONDARY BATTERY CONTAINING SAID ELECTRODE ACTIVE MATERIAL, METHOD OF MANUFACTURING SAID ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAID ELECTRODE 审中-公开
公开(公告)号：US20230235103A1
公开(公告)日：2023-07-27
申请号：US18013369
申请日：2021-06-29
申请人： ADEKA CORPORATION
发明人： Tomofumi YOKOMIZO , Hirokatsu SHINANO , Hiromi TAKENOUCHI , Kensaku AKIMOTO , Yohei AOYAMA
IPC分类号： C08F20/44 , C08F8/34 , H01M4/60 , H01M10/0525 , H01M4/04
CPC分类号： C08F20/44 , C08F8/34 , H01M4/604 , H01M10/0525 , H01M4/04 , H01M2004/027
摘要： The present invention provides a sulfur-modified polyacrylonitrile having a total content of sulfur of from 30 mass % to 55 mass % and having a content of free sulfur of from 0.05 ppm by mass to 4 mass % determined by a solvent extraction method, an electrode active material containing the same, an electrode for a secondary battery including the electrode active material, a method of manufacturing the electrode, and a non-aqueous electrolyte secondary battery using the electrode.

5. 发明授权

US11584045B2 Composition for dip molding 有权
公开(公告)号：US11584045B2
公开(公告)日：2023-02-21
申请号：US17890480
申请日：2022-08-18
申请人： Midori Anzen Co., Ltd.
发明人： Norihide Enomoto , Taichi Ogawa , Kaname Shibata , Junji Shibasaki
IPC分类号： B29C41/14 , A41D19/00 , B29C41/00 , C08F20/44 , C08G59/32 , C08J5/02 , C08F236/12 , B29K33/20 , B29L31/48 , C08K5/1515
摘要： A glove including a cured film of an elastomer containing a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain, wherein the elastomer contains 20 to 40% by weight of a (meth)acrylonitrile-derived structural unit, 1 to 10% by weight of an unsaturated carboxylic acid-derived structural unit and 50 to 75% by weight of a butadiene-derived structural unit, and has a crosslinked structure of a carboxyl group in the unsaturated carboxylic acid-derived structural unit with an epoxy crosslinker containing an epoxy compound having three or more epoxy groups in one molecule.

6. 发明授权

US11560461B2 Additive for fiber strengthening 有权
公开(公告)号：US11560461B2
公开(公告)日：2023-01-24
申请号：US16493846
申请日：2018-04-06
申请人： North Carolina State University
发明人： Ericka Ford , Chunhong Lu , Charles Blackwell
IPC分类号： C08K5/092 , C07C59/285 , C08F16/06 , C08F20/44 , C08L29/04 , C08L33/20 , C04B16/06 , D01D5/06 , D01F1/10 , D01F6/14 , D01F6/18
摘要： Compositions that include a polymer and an aldaric acid, such as glucaric acid, are disclosed. The compositions may include polyvinyl alcohol and glucaric acid. The compositions may also include polyacrylonitrile and glucaric acid. In addition, the compositions may further include lignin. Also disclosed are fibers including the compositions, methods of making the fibers, and uses of the fibers.

7. 发明授权

US11427659B2 Method of preparing acrylonitrile-based polymer for producing carbon fiber 有权
公开(公告)号：US11427659B2
公开(公告)日：2022-08-30
申请号：US16481395
申请日：2018-09-18
申请人： LG CHEM, LTD.
发明人： Chang Hun Kim , Hyun Min Kim , Jeong Hun Cho , Joon Hee Cho
IPC分类号： C08F20/44 , C08F220/46 , D01F9/22 , C08F120/44 , C08F220/48 , C08F120/42 , C08F220/44 , C08F20/42 , C08F2/06 , C08F2/04
摘要： A method of preparing an acrylonitrile-based copolymer for a carbon fiber. The method includes: preparing a reaction solution including a (meth)acrylonitrile-based monomer and a first reaction solvent; adding a first portion of a radical polymerization initiator to the reaction solution to initiate polymerization; and adding a second portion of the radical polymerization initiator to the reaction solution when a polymerization conversion ratio is between 70 to 80%.

8. 发明授权

US11313053B2 Optimized process for the preparation of a spinning solution for the production of acrylic fibers precursors of carbon fibers and the relative carbon fibers 有权
公开(公告)号：US11313053B2
公开(公告)日：2022-04-26
申请号：US16988843
申请日：2020-08-10
申请人： Montefibre Mae Technologies S.r.l.
发明人： Franco Francalanci
IPC分类号： C08F20/44 , C08F220/46 , C08F220/48 , C08F236/12 , C08J3/11 , C08K5/17 , C08L33/20 , D01D1/02 , D01D5/06 , D01D10/02 , D01F1/07 , D01F6/38 , D01F9/22 , C08J3/09
摘要： An optimized process for the preparation of a spinning solution for the production of acrylic fiber precursors (PAN) of carbon fibers and an optimized process for the production of carbon fibers from said acrylic precursor (PAN), are described.

9. 发明申请

US20210162636A1 Glove, Composition for Dip Molding, and Method for Producing Glove 有权
公开(公告)号：US20210162636A1
公开(公告)日：2021-06-03
申请号：US16347597
申请日：2018-11-20
申请人： Midori Anzen Co., Ltd.
发明人： Norihide Enomoto , Taichi Ogawa , Kaname Shibata , Junji Shibasaki
IPC分类号： B29C41/14 , A41D19/00 , B29C41/00 , C08F20/44
摘要： A glove including a cured film of an elastomer containing a (meth)acrylonitrile-derived structural unit, an unsaturated carboxylic acid-derived structural unit and a butadiene-derived structural unit in a polymer main chain, wherein the elastomer contains 20 to 40% by weight of a (meth)acrylonitrile-derived structural unit, 1 to 10% by weight of an unsaturated carboxylic acid-derived structural unit and 50 to 75% by weight of a butadiene-derived structural unit, and has a crosslinked structure of a carboxyl group in the unsaturated carboxylic acid-derived structural unit with an epoxy crosslinker containing an epoxy compound having three or more epoxy groups in one molecule.

10. 发明授权

US10894845B2 Polymerization of Michael-type and heterocyclic monomers 有权
公开(公告)号：US10894845B2
公开(公告)日：2021-01-19
申请号：US16087278
申请日：2017-03-22
申请人： Technische Universität München
发明人： Maximilian Knaus , Marco Giuman , Bernhard Rieger
IPC分类号： C08F20/44 , C08F20/18 , C08F20/30 , C08F20/54 , C08F28/02 , C08F30/02 , C08F4/00
摘要： A system for precision polymerization is disclosed comprising at least one Michael-type monomer and a metal compound MR1R2R3 as sole catalyst and initiator, wherein M is aluminum, gallium or indium, each of R1, R2, and R3 independently is CI, F, I, Br, linear, branched or cyclic alkyl, heterocycloalkyl, linear, branched or cyclic alkenyl, heterocycloalkenyl, linear, branched, or cyclic alkenyl, linear, branched, or cyclic alkinyl, heterocycloalkinyl, linear, branched, or cyclic alkoxy, aryl, heteroaryl, aryloxy, silyl, metallocenyl, nitro, nitroso, hydroxy, or carboxyl, wherein each alkyl, alkenyl, alkinyl or alkoxy group independently has up to 12 carbon atoms, wherein each aryl or heteroaryl independently has 5 to 14 ring atoms, wherein any hetero group has at least one hetero atom selected from the group consisting of O, S, and N, wherein each alkyl, alkenyl, alkinyl or alkoxy, heterocycloalkyl, heterocycloalkenyl, heterocycloalkinyl, aryl, heteroaryl, aryloxy group can be substituted by 1 up to the highest possible number of halogen atoms, or at least one electron-donating or electron-withdrawing group; with the proviso that not all three groups R1, R2, and R3 are halogen, hydroxy, or alkoxy or wherein two of R1, R2, and R3 together with M form a substituted or unsubstituted cyclic or heterocyclic group having 3 to 6 atoms, wherein a heterocyclic group has at least one hetero atom selected from the group consisting of O, S, and N; as well as processes for preparing polymers and the polymers obtained therewith.

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