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1. 发明授权

US09947927B2 Production method for negative electrode for all-solid-state battery, and negative electrode for all-solid-state battery 有权
公开(公告)号：US09947927B2
公开(公告)日：2018-04-17
申请号：US15300356
申请日：2015-03-31
申请人： Kureha Corporation
发明人： Kenta Aoki , Shota Kobayashi , Tatsuya Yaguchi , Hiroshi Imoto , Yasuhiro Tada , Naohiro Sonobe
IPC分类号： H01M4/587 , H01M4/133 , H01M4/1393 , H01M10/0562 , H01M4/04 , H01M4/36 , H01M4/62 , H01M10/0525 , H01M10/052 , H01M4/02
CPC分类号： H01M4/587 , H01M4/043 , H01M4/133 , H01M4/1393 , H01M4/366 , H01M4/62 , H01M10/052 , H01M10/0525 , H01M10/0562 , H01M2004/027 , H01M2220/20 , H01M2300/0068
摘要： An object of the present invention is to provide a production method for suppressing the deformation of a negative electrode in the production of a negative electrode for an all-solid-state battery using turbostratic carbon and a solid electrolyte.The problem described above can be solved by a production method for a negative electrode for an all-solid-state battery comprising the steps of: (1) coating a carbonaceous material having a true density of from 1.30 g/cm3 to 2.10 g/cm3 determined by a butanol method with a solid electrolyte; and (2) pressure-molding the solid electrolyte-coated carbonaceous material.

2. 发明申请

US20150180020A1 CARBONACEOUS MATERIAL FOR ANODE OF NANAQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND ANODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY OBTAINED USING THE CARBONACEOUS MATERIAL 审中-公开
标题翻译：用于阳极电解质二次电池阳极的碳质材料，其制造方法以及使用碳质材料获得的阳极和非电解电解质二次电池
公开(公告)号：US20150180020A1
公开(公告)日：2015-06-25
申请号：US14420412
申请日：2013-08-30
申请人： Kureha Corporation , Kureha Battery Materials Japan Co., Ltd.
发明人： Mayu Komatsu , Yasushi Ebihara , Takashi Wakahoi , Yasuhiro Tada , Naohiro Sonobe , Mao Suzuki , Kayoko Okada , Akitoshi Hatamochi , Makoto Imaji , Yasufumi Ikeyama , Shota Kobayashi , Kenta Aoki
IPC分类号： H01M4/133 , C01B31/02 , H01M4/587
CPC分类号： H01M4/133 , C01B32/05 , H01M4/587 , H01M10/0525 , H01M10/0567 , H01M2220/20 , H01M2300/0025 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： The object of the present invention is to provide a carbonaceous material for an anode of a nonaqueous electrolyte secondary battery which uses a plant-derived organic material as a raw material, has high purity so that alkali metals such as the potassium element are sufficiently removed by de-mineral, and has excellent cycle characteristics, and to provide a lithium ion secondary battery using the carbonaceous material.The carbonaceous material for an anode of a nonaqueous electrolyte secondary battery is a carbonaceous material obtained by carbonizing a plant-derived organic material, the atom ratio of hydrogen atoms and carbon atoms (H/C) according to elemental analysis being at most 0.1, the average particle size Dv50 being from 2 to 50 μm, the average interlayer spacing of the 002 planes determined by X-ray diffraction being from 0.365 nm to 0.400 nm, the potassium element content being at most 0.5 mass %, the calcium element content being at most 0.02 mass %, and the true density determined by a pycnometer method using butanol being at least 1.44 g/cm3 and less than 1.54 g/cm3.
摘要翻译：本发明的目的是提供一种以植物来源的有机材料为原料的非水电解质二次电池的负极用碳质材料，其纯度高，使得钾元素等碱金属被充分地除去。脱矿物质，并且具有优异的循环特性，并提供使用碳质材料的锂离子二次电池。非水电解质二次电池的负极用碳质材料是通过碳化植物来源的有机材料得到的碳质材料，根据元素分析的氢原子和碳原子的原子比（H / C）为0.1以下，平均粒径Dv50为2〜50μm，通过X射线衍射测定的002面平均层间距为0.365nm〜0.400nm，钾元素含量为0.5质量％以下，钙元素含量为最大0.02质量％，并且通过使用丁醇的比重瓶法测定的真密度为至少1.44g / cm 3且小于1.54g / cm 3。

3. 发明申请

US20150188137A1 CARBONACEOUS MATERIAL FOR ANODE OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING THE SAME 审中-公开
标题翻译：非水电解质二次电池阳极用碳材料及其制造方法
公开(公告)号：US20150188137A1
公开(公告)日：2015-07-02
申请号：US14420385
申请日：2013-08-30
申请人： Kureha Corporation , Kureha Battery Materials Japan Co., Ltd.
发明人： Mayu Komatsu , Yasushi Ebihara , Takashi Wakahoi , Yasuhiro Tada , Naohiro Sonobe , Mao Suzuki , Kayoko Okada , Akitoshi Hatamochi , Makoto Imaji , Yasufumi Ikeyama , Shota Kobayashi
IPC分类号： H01M4/587 , B01D11/02 , C01B31/02 , H01M4/133 , H01M4/62
CPC分类号： H01M4/587 , B01D11/02 , C01B32/05 , H01M4/622 , H01M10/0525 , H01M10/0567 , H01M2220/20 , H01M2300/0025 , Y02E60/122 , Y02P70/54 , Y02T10/7011
摘要： The object of the present invention is to provide a carbonaceous material for an anode of a nonaqueous electrolyte secondary battery which uses a plant-derived organic material as a raw material, has high purity so that alkali metals such as the potassium element and alkali earth metals such as the calcium element are sufficiently removed by de-mineral treatment, and has excellent discharge capacity and efficiency, a novel manufacturing method capable of efficiently mass-producing the carbonaceous material, and a lithium ion secondary battery using the carbonaceous material.The problem described above can be solved by a carbonaceous material for an anode of a nonaqueous electrolyte secondary battery obtained by carbonizing a plant-derived organic material, the atom ratio (H/C) of hydrogen atoms and carbon atoms according to elemental analysis being at most 0.1, the average particle size Dv50 being from 2 to 50 μm, the average interlayer spacing of the 002 planes determined by powder X-ray diffraction being from 0.365 nm to 0.400 nm, the potassium element content being at most 0.5 mass %, and the calcium element content being at most 0.02 mass %.
摘要翻译：本发明的目的是提供一种以植物来源的有机材料为原料的非水电解质二次电池的负极用碳质材料，其纯度高，使得碱金属如钾元素和碱土金属例如通过脱矿石处理充分除去钙元素，并且具有优异的排出能力和效率，能够有效地大量生产碳质材料的新型制造方法和使用该碳质材料的锂离子二次电池。上述问题可以通过将植物来源的有机材料碳化获得的非水电解质二次电池的阳极用碳质材料，根据元素分析的氢原子和碳原子的原子比（H / C）为平均粒径Dv50为2〜50μm，通过粉末X射线衍射测定的002平面的平均层间距离为0.365nm〜0.400nm，钾元素含量为0.5质量％以下，钙元素含量为0.02质量％以下。

4. 发明授权

US10388956B2 Carbonaceous molded article for electrodes and method of manufacturing the same 有权
公开(公告)号：US10388956B2
公开(公告)日：2019-08-20
申请号：US15127033
申请日：2015-03-20
申请人： Kureha Corporation
发明人： Shota Kobayashi , Takanori Baba , Hiroshi Imoto , Mayu Komatsu , Naohiro Sonobe
IPC分类号： H01M4/13 , H01M4/587 , H01M4/04 , H01M4/133 , H01M4/1393
摘要： An object of the present invention is to provide a carbonaceous molded article for electrodes having high charge/discharge capacity, high initial charge/discharge efficiency, and excellent cycle life without a polymeric binder.The above object can be achieved by the carbonaceous molded article for electrodes of the present invention comprising a carbon fiber nonwoven fabric, the article having a thickness of not greater than 1 mm, an atomic ratio (H/C) of hydrogen atoms and carbon atoms according to elemental analysis of not greater than 0.1, a porosity determined from a bulk density and a butanol true density of the molded article of 25 to 80%, and a volatile content of not greater than 5.0 wt %.

5. 发明授权

US09537176B2 Material for non-aqueous electrolyte secondary battery negative electrode 有权
标题翻译：非水电解质二次电池负极材料
公开(公告)号：US09537176B2
公开(公告)日：2017-01-03
申请号：US14416107
申请日：2013-08-30
申请人： Kureha Corporation , Kureha Battery Materials Japan Co., Ltd.
发明人： Tetsuhiro Kobayashi , Shota Kobayashi , Takashi Wakahoi , Yasuhiro Tada , Naohiro Sonobe
IPC分类号： H01M4/583 , H01M10/0567 , H01M4/133 , H01M4/587 , H01M4/62 , H01M10/052 , H01M10/0525
CPC分类号： H01M10/0567 , H01M4/133 , H01M4/583 , H01M4/587 , H01M4/622 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M2220/20 , H01M2300/0025 , Y02E60/122 , Y02T10/7011
摘要： An object of the present invention is to provide a material for non-aqueous electrolyte secondary battery negative electrodes containing a graphitic material and a non-graphitizable carbonaceous material, the material having excellent resistance against deterioration due to moisture absorption and excellent charge/discharge cycle resistance; a non-aqueous electrolyte secondary battery negative electrode using the same; and a non-aqueous electrolyte secondary battery using these, that has low resistance and excellent cycle durability.The present invention comprises a carbonaceous material obtained by carbonizing a plant-derived organic material having a potassium content of 0.5% by mass or less, an average particle size Dv50 of 2 μm to 50 μm, an average interlayer spacing of (002) plane determined by powder X-ray diffraction of 0.365 nm to 0.400 nm, an atomic ratio (H/C) of hydrogen atoms to carbon atoms determined by elemental analysis of 0.1 or less, and a true density determined by a pycnometer method using butanol of 1.51 g/cm3 or greater but 1.65 g/cm3 or less; and a graphitic material having an average interlayer spacing determined by powder X-ray diffraction of 0.345 nm or less, and a true density determined by a pycnometer method using butanol of 1.9 g/cm3 or greater.
摘要翻译：本发明包括通过将钾含量为0.5质量％以下，平均粒径Dv50为2μm〜50μm的植物来源的有机材料碳化，将（002）面的平均层间距决定的碳质材料通过0.365nm〜0.400nm的粉末X射线衍射，通过元素分析测定的氢原子与碳原子的原子比（H / C）为0.1以下，通过比重瓶法使用1.51g的丁醇测定的真密度 cm 3以上，但1.65g / cm 3以下; 和通过粉末X射线衍射测定的平均层间距为0.345nm以下的石墨材料，以及使用1.9g / cm 3以上的丁醇的比重瓶法测定的真密度。

6. 发明申请

US20150171470A1 MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE 有权
标题翻译：非水电解质二次电池负极电极材料
公开(公告)号：US20150171470A1
公开(公告)日：2015-06-18
申请号：US14416107
申请日：2013-08-30
申请人： Kureha Corporation , Kureha Battery Materials Japan Co., Ltd.
发明人： Tetsuhiro kobayashi , Shota Kobayashi , Takashi Wakahoi , Yasuhiro Tada , Naohiro Sonobe
IPC分类号： H01M10/0567 , H01M10/0525 , H01M4/583
CPC分类号： H01M10/0567 , H01M4/133 , H01M4/583 , H01M4/587 , H01M4/622 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M2220/20 , H01M2300/0025 , Y02E60/122 , Y02T10/7011
摘要： An object of the present invention is to provide a material for non-aqueous electrolyte secondary battery negative electrodes containing a graphitic material and a non-graphitizable carbonaceous material, the material having excellent resistance against deterioration due to moisture absorption and excellent charge/discharge cycle resistance; a non-aqueous electrolyte secondary battery negative electrode using the same; and a non-aqueous electrolyte secondary battery using these, that has low resistance and excellent cycle durability.The present invention comprises a carbonaceous material obtained by carbonizing a plant-derived organic material having a potassium content of 0.5% by mass or less, an average particle size Dv50 of 2 μm to 50 μm, an average interlayer spacing of (002) plane determined by powder X-ray diffraction of 0.365 nm to 0.400 nm, an atomic ratio (H/C) of hydrogen atoms to carbon atoms determined by elemental analysis of 0.1 or less, and a true density determined by a pycnometer method using butanol of 1.51 g/cm3 or greater but 1.65 g/cm3 or less; and a graphitic material having an average interlayer spacing determined by powder X-ray diffraction of 0.345 nm or less, and a true density determined by a pycnometer method using butanol of 1.9 g/cm3 or greater.
摘要翻译：本发明的目的是提供一种含有石墨材料和不可石墨化的碳质材料的非水电解质二次电池负极材料，该材料具有优异的抗吸湿性劣化性和优异的充放电循环电阻 ; 使用该非水电解质二次电池负极的非水电解质二次电池负极; 和使用这些的非水电解质二次电池，具有低电阻和优异的循环耐久性。本发明包括通过将钾含量为0.5质量％以下，平均粒径Dv50为2μm〜50μm的植物来源的有机材料碳化，将（002）面的平均层间距决定的碳质材料通过0.365nm〜0.400nm的粉末X射线衍射，通过元素分析测定的氢原子与碳原子的原子比（H / C）为0.1以下，通过比重瓶法使用1.51g的丁醇测定的真密度 cm 3以上，但1.65g / cm 3以下; 和通过粉末X射线衍射测定的平均层间距为0.345nm以下的石墨材料，以及使用1.9g / cm 3以上的丁醇的比重瓶法测定的真密度。

7. 发明授权

US11594734B2 Vinylidene fluoride polymer, binder composition, electrode mixture, electrode, and non-aqueous electrolyte secondary battery, and method for producing electrode mixture 有权
公开(公告)号：US11594734B2
公开(公告)日：2023-02-28
申请号：US16966970
申请日：2018-10-29
申请人： KUREHA CORPORATION
发明人： Kenta Aoki , Shota Kobayashi , Kana Ashida
IPC分类号： H01M4/62 , C08F214/22 , H01M4/04 , H01M4/36 , H01M4/66 , H01M10/0525
摘要： As a novel vinylidene fluoride polymer and its use, provided are a binder composition, an electrode mixture, an electrode, and a non-aqueous electrolyte secondary battery including the vinylidene fluoride containing the vinylidene fluoride polymer. The vinylidene fluoride polymer includes a first structural unit derived from vinylidene fluoride and a second structural unit derived from a monomer other than vinylidene fluoride. The monomer to be the second structural unit is a primary amine, a secondary amine, or a tertiary amine having at least one of a hydroxyl group and a carboxyl group, and the content of the second structural unit is from 0.05 to 20 mol % when the total of structural units derived from all the monomers constituting the vinylidene fluoride polymer is 100 mol %.

8. 发明授权

US11542382B2 Gel-like electrolyte having vinylidene fluoride copolymer 有权
公开(公告)号：US11542382B2
公开(公告)日：2023-01-03
申请号：US16493782
申请日：2017-11-30
申请人： Kureha Corporation
发明人： Yukitaro Sakakibara , Keisuke Watanabe , Shota Kobayashi
IPC分类号： H01M10/0525 , C08K3/22 , H01M10/0565
摘要： The present invention provides a gel-like electrolyte having excellent electrolyte solution retention ability. The resin composition contains an electrolyte composition containing a solvent and an electrolyte and a vinylidene fluoride copolymer. The vinylidene fluoride copolymer is a copolymer of vinylidene fluoride and a comonomer represented by Formula (1) below, wherein R1 and R2 are each independently a hydrogen atom or a fluorine atom, R3 is a hydrogen atom, a fluorine atom, or an alkyl group having from 1 to 5 carbons, and R4 is a basic group that is capable of forming an intermolecular hydrogen bond.

9. 发明授权

US11322744B2 Electrode mixture, method for producing electrode mixture, electrode structure, method for producing electrode structure, and secondary battery 有权
公开(公告)号：US11322744B2
公开(公告)日：2022-05-03
申请号：US16348216
申请日：2017-11-09
申请人： Kureha Corporation
发明人： Kenta Aoki , Shoko Aoki , Shota Kobayashi , Yasuhiro Tada
IPC分类号： H01M4/62 , H01M4/131 , H01M4/505 , H01M4/525 , H01M4/1391 , H01M4/36 , H01M10/0525 , H01M4/02
摘要： To provide an electrode mixture that suppresses gelling of an electrode mixture slurry and maintains a high binding capacity between an electrode active material and a current collector even after an extended period of time has elapsed since an electrode mixture slurry was produced. The electrode mixture includes: a binder composition—containing a first copolymer of vinylidene fluoride and a polar group-containing compound; and a second copolymer of vinylidene fluoride and chlorotrifluoroethylene—; and an electrode active material of lithium oxide having a pH of water when extracted with water of not less than 10.5.

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