公开(公告)号：US20220109158A1

公开(公告)日：2022-04-07

申请号：US17057464

申请日：2019-05-23

申请人： UBE INDUSTRIES, LTD.

发明人： Takeshige NAKAYAMA ,  Tetsuo SAKAI ,  Masanori MORISHITA

IPC分类号： H01M4/62 ,  H01M10/0525 ,  H01M4/04 ,  C08G73/10 ,  C08L79/08

摘要： An electrode binder resin composition containing a polyamic acid, a water-soluble polymer other than the polyamic acid, and a solvent. The use of the electrode binder resin composition improves cyclic characteristics.

公开(公告)号：US20170137571A1

公开(公告)日：2017-05-18

申请号：US15316485

申请日：2015-06-04

申请人： UBE INDUSTRIES, LTD.

发明人： Tomonori NAKAYAMA ,  Shohei INOUE ,  Takeshige NAKAYAMA ,  Hiroo YAMASHITA ,  Naoki KITAYAMA

IPC分类号： C08G73/10 ,  B05D3/00 ,  C08J5/18

CPC分类号： C08G73/1032 ,  B05D3/007 ,  C08G73/10 ,  C08G73/1039 ,  C08G73/1078 ,  C08J5/18 ,  C08J2379/08

摘要： A method for producing a polyimide film includes: (i) applying a polyamic acid solution composition, which includes at least one of the following solvents: N-methylformamide, N,N-dimethylpropionamide, N,N-dimethylisobutylamide and tetramethylurea, and a polyamic acid, to a substrate; and then (ii) imidizing the polyamic acid by subjecting the composition to heat treatment, to obtain the polyimide film.

公开(公告)号：US20220166025A1

公开(公告)日：2022-05-26

申请号：US17593595

申请日：2020-03-27

申请人： UBE INDUSTRIES, LTD.

发明人： Takeshige NAKAYAMA ,  Kazutaka NARITA

IPC分类号： H01M4/62 ,  C08G73/10

摘要： A polyimide-based binder for power storage device having a repeated breaking energy retention ratio of 70% or more. The use of the binder enables improvement of a power storage device having a high capacity.

公开(公告)号：US20220085374A1

公开(公告)日：2022-03-17

申请号：US17309846

申请日：2019-12-25

申请人： UBE INDUSTRIES, LTD.

发明人： Takeshige NAKAYAMA ,  Masanori MORISHITA ,  Tetsuo SAKAI

IPC分类号： H01M4/62 ,  H01M4/66 ,  H01M4/04 ,  H01M10/0525 ,  H01M10/0585

摘要： An electrode for an all-solid secondary battery, including an electrode active material layer comprising an electrode active material and a binder resin on a current collector, the binder resin including a polyimide resin, and the electrode active material layer does not contain an electrolyte; and an all-solid secondary battery, including the electrode as a positive electrode or a negative electrode.

公开(公告)号：US20190232333A1

公开(公告)日：2019-08-01

申请号：US16311432

申请日：2017-07-14

申请人： UBE INDUSTRIES, LTD.

发明人： Kazutaka NARITA ,  Takeshige NAKAYAMA ,  Naoki KITAYAMA ,  Shohei INOUE

IPC分类号： B05D3/02 ,  B32B27/34 ,  C08J5/18 ,  H05K1/03

CPC分类号： B05D3/0227 ,  B05D3/02 ,  B29C41/28 ,  B32B27/34 ,  C08J5/18 ,  H05K1/03 ,  H05K1/0306 ,  H05K1/0393

摘要： Disclosed is a method for producing a polyimide laminate, the method including the steps of applying a polyimide precursor solution onto a substrate and heating the polyimide precursor solution, to thereby form a polyimide film layer on the substrate. The substrate is any plate selected from a glass plate, a metal plate, and a ceramic plate. The heating step includes irradiation with far infrared rays using an infrared heater that generates a maximum radiant energy at an infrared wavelength of 3.5 to 6 μm. The highest heating temperature is preferably 350 to 550° C. The time required to increase the temperature from 180 to 280° C. during a temperature-increasing process is preferably 2 minutes or longer.

公开(公告)号：US20170025671A1

公开(公告)日：2017-01-26

申请号：US15301869

申请日：2015-04-17

申请人： Ube Industries, Ltd.

发明人： Takeshige NAKAYAMA ,  Tomonori NAKAYAMA ,  Naoki KITAYAMA

IPC分类号： H01M4/04 ,  H01M4/1391 ,  H01M4/131 ,  H01M4/1393 ,  H01M4/62 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/485 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/133

CPC分类号： H01M4/0404 ,  H01M4/04 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/622 ,  H01M10/0525

摘要： An electrode is produced by forming an electrode layer on a surface of a current collector using an electrode composition containing a binder including a polyamide acid that is obtained from a specific aromatic tetracarboxylic acid compound and a diamine component containing a diamine having a carboxyl group, and subsequently performing heat treatment to remove a solvent and perform an imidization reaction of the polyamide acid. It is preferable that the electrode composition further contains a crosslinking agent having an epoxy group or an oxazoline group. It is also preferable that the electrode composition further contains a pyridine

摘要翻译： 使用包含由特定的芳香族四羧酸化合物得到的聚酰胺酸和含有具有羧基的二胺的二胺成分的粘合剂的电极组合物，在集电体的表面上形成电极层，在集电体的表面上形成电极层， 随后进行热处理以除去溶剂并进行聚酰胺酸的酰亚胺化反应。 电极组合物优选还含有具有环氧基或恶唑啉基的交联剂。 电极组合物还优选还含有吡啶

公开(公告)号：US20220384810A1

公开(公告)日：2022-12-01

申请号：US17754363

申请日：2020-10-01

申请人： UBE INDUSTRIES, LTD.

发明人： Takeshige NAKAYAMA ,  Tetsuo SAKAI ,  Masanori MORISHITA

IPC分类号： H01M4/583 ,  H01M4/62 ,  H01M4/38 ,  H01M4/04 ,  C08G73/10

摘要： A power storage device including a negative electrode active material layer which contains carbon particles, silicon-based particles and a polyimide-based binder, in which the negative electrode active material layer has a porosity of more than 40%. The power storage device has a high charge/discharge capacity and excellent cycle characteristics.

公开(公告)号：US20200224054A1

公开(公告)日：2020-07-16

申请号：US16832378

申请日：2020-03-27

申请人： UBE INDUSTRIES, LTD.

发明人： Takeshige NAKAYAMA ,  Susumu TAKASAKI ,  Tomonori NAKAYAMA ,  Kensuke HIROSHIGE

IPC分类号： C09D179/08 ,  C08G73/10 ,  C08L79/08 ,  H01M4/62 ,  H05K1/02 ,  H05K3/00 ,  C08G73/12 ,  H01M4/04 ,  H01M10/0525

摘要： A method for producing an aqueous polyimide precursor solution composition includes forming a polyamic acid by the reaction of a tetracarboxylic acid component and a diamine component in an aqueous solvent together with an imidazole in an amount of 1.6 mole or more per mole of the tetracarboxylic acid component of the polyamic acid.

公开(公告)号：US20200172731A1

公开(公告)日：2020-06-04

申请号：US16640196

申请日：2018-08-06

申请人： UBE INDUSTRIES, LTD.

发明人： Takeshige NAKAYAMA ,  Kazutaka NARITA ,  Shohei INOUE

IPC分类号： C08L79/08 ,  H01M4/62 ,  H01M4/04 ,  H01M4/36 ,  H01M4/139 ,  H01M10/0525 ,  C08G73/10 ,  H01G11/38 ,  H01G11/56 ,  H01G11/86 ,  H01G11/28 ,  H01G11/68

摘要： A binder resin for electrodes consisting of a polyimide-based resin having a melting point of 300° C. or lower, an electrode mixture paste including the binder resin for electrodes, an electrode active material, and a solvent; and an electrode including an electrode mixture layer including the binder resin for electrodes and an electrode active material; and a method for producing the electrode.

公开(公告)号：US20160233513A1

公开(公告)日：2016-08-11

申请号：US15024493

申请日：2014-09-25

申请人： UBE INDUSTRIES, LTD.

发明人： Koji ABE ,  Shuichi KOSO ,  Takeshige NAKAYAMA

IPC分类号： H01M4/62 ,  H01G11/38 ,  C08G73/10 ,  H01G11/50 ,  H01G11/46 ,  H01G11/54 ,  H01M10/0525 ,  H01G11/68

CPC分类号： H01M4/622 ,  C08G73/1082 ,  H01G11/30 ,  H01G11/38 ,  H01G11/46 ,  H01G11/50 ,  H01G11/54 ,  H01G11/68 ,  H01M4/08 ,  H01M4/131 ,  H01M4/1391 ,  H01M6/14 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M2300/0025 ,  Y02E60/13 ,  Y02T10/7011 ,  Y02T10/7022

摘要： Provided are a polyimide binder for energy storage device capable of improving properties of an energy storage device in a broad temperature range, and an electrode sheet and an energy storage device using the same. The polyimide binder for energy storage device, which is a polyimide obtained by subjecting an aqueous solution of a polyamic acid composed of a repeating unit represented by the following general formula (I) to an imidization reaction, the polyimide having a tensile elastic modulus of 1.5 GPa or more and 2.7 GPa or less. In the formula, A is a tetravalent group resulting from eliminating a carboxyl group from a specified tetracarboxylic acid, and B is a divalent group resulting from eliminating an amino group from a specified diamine, provided that 55 mol % or more of B in a total amount of the repeating unit is the divalent group resulting from eliminating an amino group from an aliphatic diamine having a molecular weight of 500 or less.

摘要翻译： 提供能够提高宽温度范围内的能量存储装置的特性的能量储存装置的聚酰亚胺粘合剂，以及使用该聚酰
亚胺粘结剂的电极片和使用该储能装置的储能装置。 作为通过将由下述通式（I）表示的重复单元构成的聚酰胺酸的水溶液进行酰亚胺化反应而得到的聚酰亚胺作为储能装置的聚酰亚胺粘合剂，将拉伸弹性模量为1.5的聚酰亚胺 GPa以上2.7GPa以下。 在该式中，A是从规定的四羧酸中除去羧基而得到的四价基团，B是从规定的二胺除去氨基而得到的二价基团，条件是总计55摩尔％以上的B 重复单元的量是从分子量为500以下的脂族二胺除去氨基而得到的二价基团。