公开(公告)号：US20200028167A1

公开(公告)日：2020-01-23

申请号：US16585551

申请日：2019-09-27

Applicant: NGK INSULATORS, LTD.

Inventor： Naohito YAMADA

IPC: H01M4/50 ,  H01M4/38 ,  H01M4/48 ,  H01M10/0562 ,  H01M4/62

Abstract: There is provided a secondary battery including: a positive electrode containing manganese dioxide and/or manganese hydroxide, a conductive aid, and a hydroxide-ion-conductive inorganic solid electrolyte; a negative electrode containing zinc and/or zinc hydroxide, a conductive aid, and a hydroxide-ion-conductive inorganic solid electrolyte; and a separator containing a hydroxide-ion-conductive inorganic solid electrolyte, the separator separating the positive electrode from the negative electrode.

公开(公告)号：US20190173132A1

公开(公告)日：2019-06-06

申请号：US16269887

申请日：2019-02-07

Applicant: NGK INSULATORS, LTD.

Inventor： Hiroshi HAYASHI ,  Naohito YAMADA ,  Kenshin KITOH

IPC: H01M10/34 ,  H01M10/28 ,  H01M10/30 ,  H01M2/02 ,  H01M4/24 ,  H01M4/32 ,  H01M2/16 ,  H01M4/52 ,  H01M4/42 ,  H01M4/30

CPC classification number: H01M10/34 ,  H01M2/0202 ,  H01M2/0237 ,  H01M2/16 ,  H01M2/1646 ,  H01M4/244 ,  H01M4/30 ,  H01M4/32 ,  H01M4/42 ,  H01M4/48 ,  H01M4/52 ,  H01M10/04 ,  H01M10/28 ,  H01M10/30 ,  H01M2220/10 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/0014 ,  H01M2300/0068

Abstract: Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability. The nickel-zinc battery includes a positive electrode containing nickel hydroxide and/or nickel oxyhydroxide; a positive-electrode electrolytic solution in which the positive electrode is immersed, the electrolytic solution containing an alkali metal hydroxide; a negative electrode containing zinc and/or zinc oxide; a negative-electrode electrolytic solution in which the negative electrode is immersed, the electrolytic solution containing an alkali metal hydroxide; a hermetic container accommodating the positive electrode, the positive-electrode electrolytic solution, the negative electrode, and the negative-electrode electrolytic solution; and the separator exhibiting hydroxide ion conductivity and water impermeability and disposed in the hermetic container so as to separate a positive-electrode chamber from a negative-electrode chamber. The alkali metal hydroxide concentration of the positive-electrode electrolytic solution differs from that of the negative-electrode electrolytic solution.

公开(公告)号：US20170373298A1

公开(公告)日：2017-12-28

申请号：US15700764

申请日：2017-09-11

Applicant: NGK INSULATORS, LTD.

Inventor： Kenshin KITOH ,  Naohito YAMADA ,  Kenji KAWAMURA ,  Yuichi GONDA

IPC: H01M2/20 ,  H01M2/08 ,  H01M4/42 ,  H01M10/30 ,  H01M4/32 ,  H01M4/02

CPC classification number: H01M10/0486 ,  H01M2/0217 ,  H01M2/0473 ,  H01M2/08 ,  H01M2/1646 ,  H01M2/202 ,  H01M4/32 ,  H01M4/42 ,  H01M10/0413 ,  H01M10/0561 ,  H01M10/281 ,  H01M10/30 ,  H01M10/345 ,  H01M12/08 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0014 ,  Y02E60/128

Abstract: The present invention provides a sequential and efficient method of assembling a battery with a desired number of layers while reliably separating positive and negative electrode sides from each other with one or more separator structures. According to the invention, the method of assembling a battery includes stacking one or multiple combinations each comprising a frame and a positive electrode plate to be disposed in a region defined by the frame and one or multiple combinations each comprising a frame and a negative electrode plate to be disposed in a region defined by the frame, once or alternately, such that the positive and adjacent negative electrode plates are separated from each other by a separator structure and the periphery of the separator structure is held between the adjacent frames. The separator structure includes a separator exhibiting hydroxide ion conductivity and water impermeability.

公开(公告)号：US20170362717A1

公开(公告)日：2017-12-21

申请号：US15689377

申请日：2017-08-29

Applicant: NGK INSULATORS, LTD.

Inventor： Tatsuya HATTORI ,  Yoshihiko YAMAMURA ,  Kenshin KITOH ,  Naohito YAMADA ,  Naomi SAITO

IPC: C25B1/06 ,  C01F17/00 ,  C25B11/04 ,  H01M12/06

CPC classification number: C25B1/06 ,  C01F17/0012 ,  C25B11/0463 ,  H01M4/8652 ,  H01M4/9008 ,  H01M4/9016 ,  H01M4/9033 ,  H01M12/06 ,  H01M12/065 ,  H01M12/08 ,  Y02E60/128 ,  Y02E60/366

Abstract: Provided is an air electrode or water electrolysis anode showing a higher catalytic activity than carbon black and not having a risk of oxidative degradation, in particular, an air electrode or water electrolysis anode for a metal-air battery or a water electrolysis apparatus. The air electrode or water electrolysis anode includes an electron-conductive material represented by LaNi1−x−yCuxFeyO3−δ (where x>0, y>0, x+y

公开(公告)号：US20170104254A1

公开(公告)日：2017-04-13

申请号：US15386184

申请日：2016-12-21

Applicant: NGK INSULATORS, LTD.

Inventor： Tatsuya HATTORI ,  Yoshihiko YAMAMURA ,  Naohito YAMADA

IPC: H01M12/08 ,  H01M8/1246 ,  H01M8/1018 ,  H01M2/16

CPC classification number: H01M12/08 ,  H01M2/168 ,  H01M4/90 ,  H01M4/92 ,  H01M8/1018 ,  H01M8/1246 ,  H01M2008/1095 ,  H01M2008/1293 ,  H01M2300/0065 ,  H01M2300/0071 ,  H01M2300/0082 ,  H01M2300/0094 ,  Y02E60/128

Abstract: Provided is a separator-equipped air electrode for a metal-air battery, the separator-equipped air electrode including a separator composed of a hydroxide-ion-conductive inorganic solid electrolyte being a dense ceramic material; an air electrode layer containing an air electrode catalyst and an electron-conductive material, or containing an air electrode catalyst also serving as an electron-conductive material; and an intermediate layer disposed between the separator and the air electrode layer, improving the adhesion between the separator and the air electrode layer, and exhibiting hydroxide ion conductivity. The present invention enables an air electrode provided with a dense ceramic separator to ensure the desired characteristics of the dense ceramic separator and reduces the resistance of a metal-air battery (in particular, the interfacial resistance between the air electrode layer and the separator).