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公开(公告)号：US20180161867A1
公开(公告)日：2018-06-14
申请号：US15577797
申请日：2015-06-01
发明人： Satoshi MINAMIGUCHI , Tatsuya MASUTA , Shinichi TSUCHIYA , Masao AZAMI , Takeshi NAKANO , Carl SCHUBELER , Yuuta SUGIYAMA
CPC分类号： B22D29/003 , B22C1/167 , B22C1/22 , B22C9/02 , B22C9/12 , B22C15/02 , B22C15/24 , B22D29/006
摘要： A core discharge device is provided for discharging a sand core from a cast material in which the sand core contains a binder having water glass. The core discharge device comprises a humidified gas supply device that supplies humidified gas, to which humidity has been added, to the sand core inside the cast molded article. The core discharge device
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公开(公告)号：US20210384497A1
公开(公告)日：2021-12-09
申请号：US17283413
申请日：2019-10-02
发明人： Takeshi NAKANO , Atsushi ITO , Wataru OGIHARA , Yusuke NAKASHIMA , Kazuya MINAMI , Naofumi SHOJI , Kaho SUZUKI
摘要： Provided is a technique capable of further improving the cycle characteristics in a negative electrode for a non-aqueous electrolyte secondary battery in which a silicon-based negative electrode active material and a carbon-based negative electrode active material are used in combination as a negative electrode active material, and constituent components of the electrode are not bound to each other via a binder. The negative electrode for a non-aqueous electrolyte secondary battery according to the present invention has a configuration in which a negative electrode active material layer containing a negative electrode active material is formed on a surface of a current collector. The negative electrode active material contains composite secondary particles in which silicon-based negative electrode active material particles and carbon-based negative electrode active material particles are bound to each other via a binder. Here, the content of the binder in the composite secondary particles is 1% by mass or more with respect to the total mass of the silicon-based negative electrode active material particles and the carbon-based negative electrode active material particles. Further, in the negative electrode active material layer, the composite secondary particles are characterized to exist in a state of being not bound to each other via a binder.
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公开(公告)号：US20200295346A1
公开(公告)日：2020-09-17
申请号：US16753046
申请日：2018-10-10
发明人： Hiroyuki TANAKA , Takeshi NAKANO , Sota SHIBAHARA , Takamasa NAKAGAWA , Kenichiro ENOKI , Yoshihiro IKEDA , Naoki MAEO , Shogo ISOMURA
IPC分类号： H01M4/04 , H01M4/36 , H01M4/62 , H01M10/0525 , H01M10/0569
摘要： To provide a means capable of suppressing the generation of cracks in an electrode active material layer in the production of an electrode for a non-aqueous electrolyte secondary battery.Provided is a method for producing an electrode for use in a non-aqueous electrolyte secondary battery, including a current collector and an electrode active material layer including an electrode active material, arranged on a surface of the current collector, and a dispersion is by mixing the electrode active material, a binder formed of polyvinylidene fluoride (PVdF), a first solvent in which the polyvinylidene fluoride (PVdF) is not dissolved, and a second solvent in which the polyvinylidene fluoride (PVdF) can be dissolved. Then, an electrode active material slurry is prepared by removing the second solvent from the obtained dispersion. Then, a coating film is formed by coating the obtained electrode active material slurry on the surface of the current collector, thereby producing an electrode.
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公开(公告)号：US20200274164A1
公开(公告)日：2020-08-27
申请号：US16754254
申请日：2018-10-10
发明人： Takeshi NAKANO , Hiroyuki TANAKA , Takamasa NAKAGAWA , Sota SHIBAHARA , Kenichiro ENOKI , Yoshihiro IKEDA , Naoki MAEO , Shogo ISOMURA
IPC分类号： H01M4/62 , H01M10/0525 , H01M4/04 , H01M10/0566
摘要： To provide an electrode for a non-aqueous electrolyte secondary battery which retains the shape while retaining a discharge capacity at a high rate.An electrode for a non-aqueous electrolyte secondary battery has a current collector and an electrode active material layer arranged on a surface of the current collector, and is used for a non-aqueous electrolyte secondary battery having a liquid volume coefficient of 1.4 to 2.0, in which the electrode active material layer includes an electrode active material and a binder including polyvinylidene fluoride (PVdF), and the polyvinylidene fluoride (PVdF) is in a non-crystallized state and is included in the range of 0.5 to 3.3% by volume with respect to the total volume of the electrode in the electrode active material layer.
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