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公开(公告)号：US20230135365A1
公开(公告)日：2023-05-04
申请号：US18146580
申请日：2022-12-27
Applicant: NGK INSULATORS, LTD.
Inventor： Shumpei ONO , Sho YAMAMOTO , Naoko INUKAI , Shohei YOKOYAMA
IPC: H01M50/446 , H01M50/491 , H01M10/054 , H01M8/0243 , H01M8/083
Abstract: There is provided an LDH separator including a porous substrate and a hydroxide ion-conductive layered compound that is a layered double hydroxide (LDH) and/or a layered double hydroxide (LDH)-like compound, filling up pores of the porous substrate. The proportion of the hydroxide ion-conductive layered compound in the LDH separator is 25 to 85% by weight.
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公开(公告)号：US20190126588A1
公开(公告)日：2019-05-02
申请号：US16227545
申请日：2018-12-20
Applicant: NGK INSULATORS, LTD.
Inventor： Sho YAMAMOTO , Shohei YOKOYAMA , Naoko INUKAI
IPC: B32B5/18 , C01G23/047 , H01M2/16 , H01M10/26
Abstract: There is provided a functional layer including a layered double hydroxide. The functional layer further contains titania.
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公开(公告)号：US20230231153A1
公开(公告)日：2023-07-20
申请号：US18180231
申请日：2023-03-08
Applicant: NGK INSULATORS, LTD.
Inventor： Sota OKOCHI , Shohei YOKOYAMA , Sho YAMAMOTO , Naoko INUKAI
IPC: H01M8/0245 , H01M50/451
CPC classification number: H01M8/0245 , H01M50/451
Abstract: Provided is an LDH-like compound separator including a porous substrate made of a polymeric material and an LDH-like compound plugging pores in the porous substrate. The LDH-like compound separator has a plurality of remaining flattened pores, longitudinal directions of the pores being non-parallel to a thickness direction of the LDH-like compound separator.
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公开(公告)号：US20190131605A1
公开(公告)日：2019-05-02
申请号：US16227331
申请日：2018-12-20
Applicant: NGK INSULATORS, LTD.
Inventor： Sho YAMAMOTO , Shohei YOKOYAMA
Abstract: There is provided a functional layer including a layered double hydroxide that contains Ni, Al, Ti and Zn, and has an atomic ratio Zn/(Ni+Ti+Al+Zn) of 0.04 or more determined by an energy dispersive X-ray analysis (EDS).
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5.发明申请公开(公告)号：US20170260048A1
公开(公告)日：2017-09-14
申请号：US15607765
申请日：2017-05-30
Applicant: NGK INSULATORS, LTD.
Inventor： Sho YAMAMOTO , Megumi Fujisaki , Shohei Yokoyama , Naohito Yamada
CPC classification number: C01B13/14 , C01F7/005 , C01P2002/22 , C01P2002/72 , C04B35/04 , C04B35/057 , C04B35/111 , C04B35/185 , C04B35/195 , C04B35/26 , C04B35/443 , C04B35/453 , C04B35/46 , C04B35/486 , C04B35/565 , C04B2235/3225 , C04B2235/6021 , C04B2235/6567 , H01M2/145 , H01M2/1613 , H01M2/162 , H01M2/1646 , H01M2/1686 , H01M8/083 , H01M8/1016 , H01M12/06 , H01M12/08 , H01M2300/0014 , Y02E60/128
Abstract: Provided is a layered double hydroxide membrane containing a layered double hydroxide represented by the formula: M2+1−xM3+x(OH)2An−x/n.mH2O (where M2+ represents a divalent cation, M3+ represents a trivalent cation, An− represents an n-valent anion, n is an integer of 1 or more, and x is 0.1 to 0.4), the layered double hydroxide membrane having water impermeability. The layered double hydroxide membrane includes a dense layer having water impermeability, and a non-flat surface structure that is rich in voids and/or protrusions and disposed on at least one side of the dense layer. The present invention provides an LDH membrane suitable for use as a solid electrolyte separator for a battery, the LDH membrane including a dense layer having water impermeability, and a specific structure disposed on at least one side of the dense layer and suitable for reducing the interfacial resistance between the LDH membrane and an electrolytic solution.
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Patent Agency Ranking
公开(公告)号：US20210218112A1
公开(公告)日：2021-07-15
申请号：US17189765
申请日：2021-03-02
Applicant: NGK INSULATORS, LTD.
Inventor： Sho YAMAMOTO , Naoko INUKAI , Shohei YOKOYAMA
IPC: H01M50/449 , H01M50/417 , H01M50/429 , H01M10/36 , H01M50/491 , H01M50/446
Abstract: Provided is an LDH separator including a porous substrate and a layered double hydroxide (LDH) that fills up pores of the porous substrate. The LDH is composed of a plurality of hydroxide base layers containing Mg, Al, Ti, and OH group; and interlayers which are interposed between the plurality of hydroxide base layers and composed of anions and H2O.
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公开(公告)号：US20190126590A1
公开(公告)日：2019-05-02
申请号：US16227702
申请日：2018-12-20
Applicant: NGK INSULATORS, LTD.
Inventor： Sho YAMAMOTO , Shohei Yokoyama , Naoko Inukai
Abstract: There is provided a functional layer including a layered double hydroxide. The layered double hydroxide does not undergo a change in the surface microstructure and the crystalline structure when immersed in 5 mol/L of an aqueous potassium hydroxide solution containing zinc oxide in a concentration of 0.4 mol/L at 70° C. for three weeks.
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公开(公告)号：US20170214019A1
公开(公告)日：2017-07-27
申请号：US15481855
申请日：2017-04-07
Applicant: NGK INSULATORS, LTD.
Inventor： Shohei YOKOYAMA , Kouta ASAI , Megumi FUJISAKI , Sho YAMAMOTO , Naohito YAMADA
CPC classification number: H01M2/16 , B32B9/00 , B32B18/00 , C01F7/00 , C01F7/005 , C01P2004/03 , C04B35/03 , C04B35/057 , C04B35/10 , C04B35/18 , C04B35/185 , C04B35/195 , C04B35/26 , C04B35/453 , C04B35/46 , C04B35/48 , C04B35/565 , C04B38/00 , H01M2/1646 , H01M2/1686 , H01M10/26 , H01M12/08 , H01M2300/0068 , H01M2300/0094 , Y02E60/128 , C04B38/0054 , C04B38/0074
Abstract: Provided is a method of forming a layered double hydroxide (LDH) dense membrane on the surface of a porous substrate. The LDH dense membrane is composed of an LDH represented by the formula: M2+1-xM3+x(OH)2An−x/n·mH2O where M2+ represents a divalent cation. M3+ represents a trivalent cation, An− represents an n-valent anion, n is an integer of 1 or more, and x is 0.1 to 0.4. This method includes (a) providing a porous substrate, (b) evenly depositing, on the porous substrate, a nucleation material capable of providing a nucleus from which the crystal growth of the LDH starts; and (c) hydrothermally treating the porous substrate in an aqueous stock solution containing a constituent element of the LDH to form the LDH dense membrane on the surface of the porous substrate. The method of the present invention can form a highly-densified LDH membrane evenly on the surface of a porous substrate.
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公开(公告)号：US20170200981A1
公开(公告)日：2017-07-13
申请号：US15471300
申请日：2017-03-28
Applicant: NGK INSULATORS, LTD.
Inventor： Shohei YOKOYAMA , Sho YAMAMOTO , Naohito YAMADA
Abstract: Provided is a battery including a layered double hydroxide. The battery includes a positive electrode, a negative electrode, an electrolytic solution being an aqueous alkali metal hydroxide solution, and a layered double hydroxide having a fundamental composition represented by the formula: M2+1−xM3+x(OH)2An−x/n·mH2O where M2+ represents a divalent cation, M3+ represents a trivalent cation, An− represents an n-valent anion, n is an integer of 1 or more, x is 0.1 to 0.4, and m is any real number, the layered double hydroxide being in contact with the electrolytic solution, wherein a metal compound containing a metal corresponding to M2+ and/or M3+ is dissolved in the electrolytic solution such that erosion of the layered double hydroxide by the electrolytic solution is suppressed. The present invention provides a highly reliable battery such that the degradation of a layered double hydroxide (LDH) contained in the battery can be significantly reduced.
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公开(公告)号：US20230231154A1
公开(公告)日：2023-07-20
申请号：US18180276
申请日：2023-03-08
Applicant: NGK INSULATORS, LTD.
Inventor： Sota OKOCHI , Shohei YOKOYAMA , Sho YAMAMOTO , Naoko INUKAI
IPC: H01M8/0245 , H01M50/451 , H01M8/083 , H01M50/434 , H01M50/491 , H01M50/489
CPC classification number: H01M8/0245 , H01M50/451 , H01M8/083 , H01M50/434 , H01M50/491 , H01M50/489
Abstract: Provided is an LDH-like compound separator including a porous substrate made of a polymeric material; and a layered double hydroxide (LDH)-like compound with which pores of the porous substrate are plugged. A central region along the thickness of the LDH-like compound separator has a lower mean porosity than peripheral regions along the thickness of the LDH-like compound separator.
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