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1
EP3163659B1
Publication/Patent Number: EP3163659B1
Publication date: 2019-08-28
Application number: 16814537.3
Filing date: 2016-06-27
2
US10193118B2
Publication/Patent Number: US10193118B2
Publication date: 2019-01-29
Application number: 15/164,982
Filing date: 2016-05-26
Abstract: Provided is a hydroxide-ion-conductive dense membrane having a He permeability per unit area of 10 cm/min·atm or less. The present invention provides a highly-densified hydroxide-ion-conductive membrane that can significantly reduce permeation of substances other than hydroxide ions (in particular, Zn, which may cause growth of dendritic zinc in a zinc secondary battery) and that is particularly suitable for use in, for example, a separator for a battery (in particular, a zinc secondary battery, which may cause growth of dendritic zinc). Provided is a hydroxide-ion-conductive dense membrane having a He permeability per unit area of 10 cm/min·atm or less. The present invention provides a highly-densified hydroxide-ion-conductive membrane that can significantly reduce permeation of substances other than ...more ...less
3
US10263292B2
Publication/Patent Number: US10263292B2
Publication date: 2019-04-16
Application number: 15/358,556
Filing date: 2016-11-22
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. 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 ...more ...less
4
US10290847B2
Publication/Patent Number: US10290847B2
Publication date: 2019-05-14
Application number: 15/358,650
Filing date: 2016-11-22
Abstract: Provided is a separator structure for use in a zinc secondary battery. The separator structure includes a ceramic separator composed of an inorganic solid electrolyte and having hydroxide ion conductivity and water impermeability, and a peripheral member disposed along the periphery of the ceramic separator and composed of at least one of a resin frame and a resin film. The separator structure exhibits water impermeability as a whole. The separator structure of the present invention can reliably separate the positive electrode side from the negative electrode side in a zinc secondary battery, is readily sealed and bonded to a resin battery container, and exhibits significantly improved handleability during the assembly of the battery. Provided is a separator structure for use in a zinc secondary battery. The separator structure includes a ceramic separator composed of an inorganic solid electrolyte and having hydroxide ion conductivity and water impermeability, and a peripheral member disposed along the ...more ...less
5
US10276896B2
Publication/Patent Number: US10276896B2
Publication date: 2019-04-30
Application number: 15/358,608
Filing date: 2016-11-22
Abstract: Provided is a highly reliable nickel-zinc battery, which includes a separator exhibiting hydroxide ion conductivity and water impermeability. The separator is disposed in a hermetic container to separate a positive-electrode chamber from a negative-electrode chamber. The positive-electrode chamber has an extra positive-electrode space having a volume that meets part of a variation in amount of water in association with the positive electrode reaction, and the negative-electrode chamber has an extra negative-electrode space having a volume that meets part of a variation in amount of water in association with the negative electrode reaction. The battery further includes a gas-liquid flow channel that connects the extra positive-electrode space to the extra negative-electrode space, and the gas-liquid flow channel allows the electrolytic solution and gas in the positive-electrode and negative-electrode chambers to pass through the flow channel in response to a variation in amount of water caused by charge and discharge reactions. Provided is a highly reliable nickel-zinc battery, which includes a separator exhibiting hydroxide ion conductivity and water impermeability. The separator is disposed in a hermetic container to separate a positive-electrode chamber from a negative-electrode chamber. The ...more ...less
6
US10381689B2
Publication/Patent Number: US10381689B2
Publication date: 2019-08-13
Application number: 15/177,591
Filing date: 2016-06-09
Abstract: Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability. The nickel-zinc battery of the present invention includes a positive electrode containing nickel oxide 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 accommodating the positive electrode and the positive-electrode electrolytic solution from a negative-electrode chamber accommodating the negative electrode and the negative-electrode electrolytic solution. Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability. The nickel-zinc battery of the present invention includes a positive electrode containing nickel oxide and/or nickel oxyhydroxide; a ...more ...less
7
US2019267597A1
Publication/Patent Number: US2019267597A1
Publication date: 2019-08-29
Application number: 16/406,674
Filing date: 2019-05-08
Abstract: An electrode-separator assembly is provided that can drastically facilitate assembly of a LDH separator-equipped nickel-zinc battery without work, structure, or component for complete separation of a positive-electrode chamber from a negative-electrode chamber. The electrode-separator assembly includes a positive-electrode plate; a negative-electrode plate; a layered double hydroxide (LDH) separator for separation of the positive-electrode plate from the negative-electrode plate; and a resin frame having an opening to which the LDH separator and the positive-electrode plate are fitted or joined. The positive-electrode plate has a smaller face than the negative-electrode plate. The negative-electrode plate has a clearance area that does not overlap with the positive-electrode plate over a predetermined width from the outer peripheral edge of the negative-electrode plate. The peripheral end faces of the LDH separator and a segment, adjacent to the positive-electrode plate and corresponding to the clearance area, of the LDH separator are covered with the resin frame. An electrode-separator assembly is provided that can drastically facilitate assembly of a LDH separator-equipped nickel-zinc battery without work, structure, or component for complete separation of a positive-electrode chamber from a negative-electrode chamber. The ...more ...less
8
US10297869B2
Publication/Patent Number: US10297869B2
Publication date: 2019-05-21
Application number: 15/386,212
Filing date: 2016-12-21
Abstract: Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability. The separator is disposed in a hermetic container to separate a positive-electrode chamber accommodating a positive electrode and a positive-electrode electrolyte from a negative-electrode chamber accommodating a negative electrode and a negative-electrode electrolyte. The positive-electrode chamber has an extra positive-electrode space having a volume that meets a variation in amount of water in association with reaction at the positive electrode during charge and discharge of the battery, and the negative-electrode chamber has an extra negative-electrode space having a volume meeting a variation in amount of water in association with reaction at the negative electrode during charge and discharge of the battery. The nickel-zinc battery further includes a gas flow channel that connects the extra positive-electrode space to the extra negative-electrode space such that the spaces are in gas communication with each other. Provided is a highly reliable nickel-zinc battery including a separator exhibiting hydroxide ion conductivity and water impermeability. The separator is disposed in a hermetic container to separate a positive-electrode chamber accommodating a positive electrode and a ...more ...less
9
US20190173132A1
Publication/Patent Number: US20190173132A1
Publication date: 2019-06-06
Application number: 16/269,887
Filing date: 2019-02-07
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. 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 ...more ...less
10
US2018083246A1
Publication/Patent Number: US2018083246A1
Publication date: 2018-03-22
Application number: 20/171,582
Filing date: 2017-11-28
Abstract: The present invention provides a unit cell for a nickel-zinc battery in the form of a cell pack having positive and negative electrodes reliably separated by a hydroxide ion-conductive separator, which can be readily handled and is very advantageous for forming an assembled battery. The nickel-zinc cell pack of the invention includes: a flexible bag comprising flexible films; a separation sheet liquid-tightly connected to the interior of the flexible bag to separate a positive-electrode chamber and a negative-electrode chamber for inhibiting liquid communication therebetween; a positive electrode and a positive-electrode electrolytic solution disposed in the positive-electrode chamber; a negative electrode and a negative-electrode electrolytic solution disposed in the negative-electrode chamber, wherein the separation sheet comprises a separator structure comprising a separator exhibiting hydroxide-ion conductivity and water impermeability. The present invention provides a unit cell for a nickel-zinc battery in the form of a cell pack having positive and negative electrodes reliably separated by a hydroxide ion-conductive separator, which can be readily handled and is very advantageous for forming an assembled ...more ...less
11
EP3309891A1
Publication/Patent Number: EP3309891A1
Publication date: 2018-04-18
Application number: 16811525.1
Filing date: 2016-06-08
Abstract: The present invention provides a unit cell for a nickel-zinc battery in the form of a cell pack having positive and negative electrodes reliably separated by a hydroxide ion-conductive separator, which can be readily handled and is very advantageous for forming an assembled battery. The nickel-zinc cell pack of the invention includes: a flexible bag comprising flexible films; a separation sheet liquid-tightly connected to the interior of the flexible bag to separate a positive-electrode chamber and a negative-electrode chamber for inhibiting liquid communication therebetween; a positive electrode and a positive-electrode electrolytic solution disposed in the positive-electrode chamber; a negative electrode and a negative-electrode electrolytic solution disposed in the negative-electrode chamber, wherein the separation sheet comprises a separator structure comprising a separator exhibiting hydroxide-ion conductivity and water impermeability. The present invention provides a unit cell for a nickel-zinc battery in the form of a cell pack having positive and negative electrodes reliably separated by a hydroxide ion-conductive separator, which can be readily handled and is very advantageous for forming an assembled ...more ...less
12
US20180083290A1
Publication/Patent Number: US20180083290A1
Publication date: 2018-03-22
Application number: 15/825,790
Filing date: 2017-11-29
Abstract: The air electrode for a metal air battery includes carbon nanotubes and an electron conductive material. A content amount of the carbon nanotubes in the air electrode is greater than or equal to 0.1 vol % and less than or equal to 50 vol %. A content amount of the electron conductive material in the air electrode is greater than or equal to 30 vol % and less than or equal to 99 vol %. The air electrode for a metal air battery includes carbon nanotubes and an electron conductive material. A content amount of the carbon nanotubes in the air electrode is greater than or equal to 0.1 vol % and less than or equal to 50 vol %. A content amount of the electron ...more ...less
13
CN107615559A
Publication/Patent Number: CN107615559A
Publication date: 2018-01-19
Application number: 201680033185
Filing date: 2016-06-08
Abstract: A unit cell (cell) of a nickel-zinc battery, which has reliably isolated positive and negative electrodes by a hydroxide ion conductive separator therein, is provided in the form of a cell pack that has excellent handling properties and is extremely advantageous in the assembly of a battery pack. This nickel-zinc battery cell pack is provided with: a flexible bag body formed with a flexible film;a middle partition sheet that is bonded in a liquid-tight manner to the inside of the flexible bag body and defines a positive electrode chamber and a negative electrode chamber so as to not allow liquid communication; a positive electrode and positive electrode electrolyte that are accommodated in the positive electrode chamber; and a negative electrode and negative electrode electrolyte that areaccommodated in the negative electrode chamber. The middle partition sheet is provided with a separator structure that includes a separator that has hydroxide ion conductive properties but does not have water-permeable properties. A unit cell (cell) of a nickel-zinc battery, which has reliably isolated positive and negative electrodes by a hydroxide ion conductive separator therein, is provided in the form of a cell pack that has excellent handling properties and is extremely advantageous in the assembly ...more ...less
14
US20180366708A1
Publication/Patent Number: US20180366708A1
Publication date: 2018-12-20
Application number: 16/112,887
Filing date: 2018-08-27
Abstract: Provided is a hydroxide-ion-conductive dense membrane having a He permeability per unit area of 10 cm/min·atm or less. The present invention provides a highly-densified hydroxide-ion-conductive membrane that can significantly reduce permeation of substances other than hydroxide ions (in particular, Zn, which may cause growth of dendritic zinc in a zinc secondary battery) and that is particularly suitable for use in, for example, a separator for a battery (in particular, a zinc secondary battery, which may cause growth of dendritic zinc). Provided is a hydroxide-ion-conductive dense membrane having a He permeability per unit area of 10 cm/min·atm or less. The present invention provides a highly-densified hydroxide-ion-conductive membrane that can significantly reduce permeation of substances other than ...more ...less
15
EP3316368A1
Publication/Patent Number: EP3316368A1
Publication date: 2018-05-02
Application number: 16814538.1
Filing date: 2016-06-27
Abstract: The air electrode (12) includes carbon nanotubes and an electron conductive material. The content amount of carbon nanotubes in the air electrode (12) is greater than or equal to 0.1 vol% and less than or equal to 50 vol%, and the content amount of the electron conductive material in the air electrode (12) is greater than or equal to 30 vol% and less than or equal to 99 vol%. The air electrode (12) includes carbon nanotubes and an electron conductive material. The content amount of carbon nanotubes in the air electrode (12) is greater than or equal to 0.1 vol% and less than or equal to 50 vol%, and the content amount of the electron conductive ...more ...less
16
CN107851808A
Publication/Patent Number: CN107851808A
Publication date: 2018-03-27
Application number: 201680027872
Filing date: 2016-06-27
Abstract: An air electrode (12) contains carbon nanotubes and an electron conductive material. The content of the carbon nanotubes constitutes 0.1-50 vol%, inclusive, of the air electrode (12). The content of the electron conductive material constitutes 30-99 vol%, inclusive, of the air electrode (12). An air electrode (12) contains carbon nanotubes and an electron conductive material. The content of the carbon nanotubes constitutes 0.1-50 vol%, inclusive, of the air electrode (12). The content of the electron conductive material constitutes 30-99 vol%, inclusive, of the air ...more ...less
17
WO2018078738A1
Publication/Patent Number: WO2018078738A1
Publication date: 2018-05-03
Application number: 2016081701
Filing date: 2016-10-26
Abstract: Provided is a nickel zinc battery that is provided with: a positive electrode which contains nickel hydroxide and/or nickel oxyhydroxide containing at least one of Mg and Y; a negative electrode which contains zinc and/or zinc oxide; an electrolyte solution which contains an aqueous alkali metal hydroxide solution; and a layered double hydroxide (LDH) separator which separates the positive electrode and the negative electrode from each other in such a manner that hydroxide ions are able to be conducted therebetween. Consequently, the present invention is able to improve the discharge capacity (Ah) efficiency of a nickel zinc battery which is equipped with an LDH separator. Provided is a nickel zinc battery that is provided with: a positive electrode which contains nickel hydroxide and/or nickel oxyhydroxide containing at least one of Mg and Y; a negative electrode which contains zinc and/or zinc oxide; an electrolyte solution which contains an ...more ...less
18
US20180083246A1
Publication/Patent Number: US20180083246A1
Publication date: 2018-03-22
Application number: 15/824,127
Filing date: 2017-11-28
Abstract: The present invention provides a unit cell for a nickel-zinc battery in the form of a cell pack having positive and negative electrodes reliably separated by a hydroxide ion-conductive separator, which can be readily handled and is very advantageous for forming an assembled battery. The nickel-zinc cell pack of the invention includes: a flexible bag comprising flexible films; a separation sheet liquid-tightly connected to the interior of the flexible bag to separate a positive-electrode chamber and a negative-electrode chamber for inhibiting liquid communication therebetween; a positive electrode and a positive-electrode electrolytic solution disposed in the positive-electrode chamber; a negative electrode and a negative-electrode electrolytic solution disposed in the negative-electrode chamber, wherein the separation sheet comprises a separator structure comprising a separator exhibiting hydroxide-ion conductivity and water impermeability. The present invention provides a unit cell for a nickel-zinc battery in the form of a cell pack having positive and negative electrodes reliably separated by a hydroxide ion-conductive separator, which can be readily handled and is very advantageous for forming an assembled ...more ...less