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公开(公告)号：EP3716373A1
公开(公告)日：2020-09-30
申请号：EP20163309.6
申请日：2020-03-16
发明人： KUBO, Tatsuya , FUMIYA, Chujo
IPC分类号： H01M4/58 , H01M4/62 , H01M4/88 , H01M10/0525
摘要： The present invention provides a sulfur-based active material prepared using an inexpensive polymer material as a starting material and a method of preparing the sulfur-based active material. A non-aqueous electrolyte secondary battery such as a lithium-ion secondary battery provided with an electrode comprising the sulfur-based active material has a large charging and discharging capacity and an excellent cyclability.
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公开(公告)号：EP3716363A1
公开(公告)日：2020-09-30
申请号：EP20162985.4
申请日：2020-03-13
发明人： KUBO, Tatsuya , FUMIYA, Chujo
IPC分类号： H01M4/04 , H01M4/58 , H01M4/60 , H01M10/0525
摘要： The present invention provides a sulfur-based active material prepared using an inexpensive polymer material as a starting material and a method of preparing the sulfur-based active material. A non-aqueous electrolyte secondary battery such as a lithium-ion secondary battery provided with an electrode comprising the sulfur-based active material has a large charging and discharging capacity and an excellent cyclability.
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公开(公告)号：EP3483950A1
公开(公告)日：2019-05-15
申请号：EP18203776.2
申请日：2018-10-31
IPC分类号： H01M4/04 , H01M4/38 , H01M4/587 , H01M4/72 , H01M10/052
摘要： An object of the present invention is to provide a method of manufacturing a high capacity lithium ion battery device by safe and simple doping operation. A method of manufacturing a lithium ion battery device comprising a positive electrode and a negative electrode which are laminated with each other, wherein an active material used on the positive electrode is a sulfur-based active material having a total sulfur content of not less than 50% by mass measured by an elementary analysis, the method comprising: a step of forming through-holes penetrating in a thickness direction of the positive electrodes and the negative electrodes, a step of laminating the positive electrodes with the negative electrode and disposing a lithium ion feeding source on at least one side of a laminating direction, and a step of allowing lithium derived from the lithium ion feeding source to be carried on the positive electrode and the negative electrode.
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4.发明公开
公开(公告)号：EP3923377A1
公开(公告)日：2021-12-15
申请号：EP21169231.4
申请日：2021-04-19
发明人： FUMIYA, Chujo , KUBO, Tatsuya
IPC分类号： H01M4/13
摘要： Provided is an organic sulfur material comprising a sulfur-modified acrylic resin, wherein an acrylic resin is at least one polymer selected from the group consisting of (a) a polymer of at least one selected from the group consisting of acrylate compounds represented by CH 2 = C(R 11 )COOR 12 (wherein, R 11 is a hydrogen atom or a methyl group, and R 12 is an alkyl group.) and (b) a polymer of at least one selected from the group consisting of acrylate compounds above and at least one selected from the group consisting of diacrylate compounds represented by CH 2 = C(R 21 )COO-Y-OCO(R 22 ) C = CH 2 (wherein, each of R 21 and R 22 is the same or different and is a methyl group, etc., Y is a hydrocarbylene group, etc., wherein the hydrocarbylene group may have a substituent selected from a hydroxyl group and an alkyl group.).
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5.发明公开
公开(公告)号：EP3902045A3
公开(公告)日：2021-11-24
申请号：EP21169235.5
申请日：2021-04-19
发明人： FUMIYA, Chujo , KUBO, Tatsuya
IPC分类号： H01M10/00
摘要： It is an object of the present invention to provide a novel organic sulfur material which is capable of improving a charge/discharge capacity and cycle characteristics, an electrode comprising the organic sulfur material, that is, a positive electrode or a negative electrode, and a lithium-ion secondary battery comprising the electrode. Provided is an organic sulfur material comprising a sulfur-modified acrylic resin, wherein an acrylic resin has peaks around 756 cm- 1 , around 1066 cm -1 , around 1150 cm -1 , around 1245 cm -1 , around 1270 cm -1 , around 1453 cm -1 , and around 1732 cm -1 in an FT-IR spectrum.
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6.发明公开
公开(公告)号：EP3651238A1
公开(公告)日：2020-05-13
申请号：EP19206967.2
申请日：2019-11-04
发明人： KUBO, Tatsuya , FUMIYA, Chujo , MINAGAWA, Yasuhisa
IPC分类号： H01M4/04 , H01M4/1397 , H01M4/36
摘要： An object of the present disclosure is to provide a new sulfur-based positive-electrode active material which can improve cyclability of a lithium-ion secondary battery while maintaining a charging and discharging capacity, a positive-electrode comprising the positive-electrode active material, and a lithium-ion secondary battery comprising the positive-electrode. The sulfur-based positive-electrode active material is one comprising doped nitrogen atoms obtainable by heat-treating a starting material comprising a chain organic compound and sulfur under an atmosphere of a nitrogen atom-doping gas.
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7.发明公开
公开(公告)号：EP3902045A2
公开(公告)日：2021-10-27
申请号：EP21169235.5
申请日：2021-04-19
发明人： FUMIYA, Chujo , KUBO, Tatsuya
IPC分类号： H01M10/00
摘要： It is an object of the present invention to provide a novel organic sulfur material which is capable of improving a charge/discharge capacity and cycle characteristics, an electrode comprising the organic sulfur material, that is, a positive electrode or a negative electrode, and a lithium-ion secondary battery comprising the electrode. Provided is an organic sulfur material comprising a sulfur-modified acrylic resin, wherein an acrylic resin has peaks around 756 cm- 1 , around 1066 cm -1 , around 1150 cm -1 , around 1245 cm -1 , around 1270 cm -1 , around 1453 cm -1 , and around 1732 cm -1 in an FT-IR spectrum.
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