Abstract: To provide an electrode for a lithium ion secondary battery being an electrode for obtaining a lithium ion secondary battery including a foamed metal as a current collector and having a high energy density, and further capable of improving durability and input/output characteristics (output density), and a lithium ion secondary battery using the electrode for a lithium ion secondary battery. A porous coating layer is disposed on an electrode layer of the electrode for a lithium ion secondary battery using a current collector made of a foamed metal, an electrolytic solution extruded from the electrode layer due to expansion of a negative electrode active material can be absorbed and trapped in the coating layer.

Abstract: Provided is an electrode including a metal foam as a current collector for obtaining a lithium-ion secondary battery having a high energy density. More particularly, provided is a lithium-ion secondary battery electrode that achieves improved input/output properties (power density) and improved durability, and a lithium-ion secondary battery including the lithium-ion secondary battery electrode. An electrode is formed by providing, in an electrode layer, a region having an excessive amount of an electrolytic solution by forming a region where a current collector made of a metal foam contains no electrode material mixture.

Abstract: Provided are an electrode for lithium ion secondary batteries which is an electrode for obtaining a lithium ion secondary batteries having high energy density with foam metal as the collector, and further being able to improve durability and input/output characteristics (output density), as well as a lithium ion secondary battery made using this electrode for lithium ion secondary batteries. The electrode layer of the electrode for lithium ion secondary batteries using a collector consisting of foam metal is configured by dividing into a plurality of electrode divided parts, whereby the migration distance of electrons and migration distance of ions in each of the electrode divided parts is shortened.

Abstract: Provided is a lithium ion secondary battery electrode allowing excellent charge-and-discharge cycle characteristics to be obtained when used in a lithium ion secondary battery. The lithium ion secondary battery electrode includes a current collector composed of a metal porous body having a three-dimensional network structure in which columnar skeletons are three-dimensionally connected, a first active material held on one side of the current collector, and a second active material held on the other side of the current collector.

Abstract: To provide an electrode for lithium ion secondary batteries, and a lithium ion secondary battery made using this electrode for lithium ion secondary batteries, which can sufficiently secure electron conductivity between a foam metal body and an electrode active material in an electrode for lithium ion secondary batteries which establish a foam metal body as the collector, reduce the resistance of a lithium ion secondary batter, and improve the durability. A carbon layer consisting of carbon material is disposed on a surface of a foam porous body consisting of metal, and used as a collector. More specifically, an electrode for lithium ion secondary batteries includes a collector, and an electrode mixture filled into the collector, in which the collector is made to have a carbon layer consisting of carbon material on a surface of a foam porous body consisting of metal.

Abstract: To provide an electrode for lithium ion secondary batteries, and a lithium ion secondary battery made using this electrode for lithium ion secondary batteries, which can suppress an increase in electron resistance of a current collector area, and improve heat dissipation, in an electrode for lithium ion secondary batteries establishing a foam metal body as the collector. In the electrode for lithium ion secondary batteries made using a foam porous body consisting of metal as a current collector, the electrode shape is rectangular, and a current collector region is made to span at least two adjacent sides.

Abstract: In a lithium ion secondary battery (1), a positive electrode (2) and a negative electrode (3) are alternately adjacent to each other via separators (4) and (5). The positive electrode (2) includes a positive electrode current collector composed of a metal porous body, a first positive electrode active material (21) held on one side of the positive electrode current collector, and a second positive electrode active material (22) held on the other side. The negative electrode (3) includes a negative electrode current collector composed of a metal porous body, a first negative electrode active material (31) held on one side of the negative electrode current collector, and a second negative electrode active material (32) held on the other side. The first positive electrode active material (21) faces the first negative electrode active material (31), and the positive electrode active material (22) faces the second negative electrode active material (32).

Abstract: Provided is an electrode mixture layer capable of reducing internal resistance by use of a carbon nanotube molding. The electrode mixture layer includes an active material and a conductor of carbon nanotubes in close contact with the surface of the active material, and the number density of the carbon nanotubes is 4 tubes/?m or more. The number density is defined as a value obtained by providing measurement lines on a scanning electron microscope image of a surface of the electrode mixture layer at 0.3 ?m intervals both longitudinally and laterally, measuring the total number of the carbon nanotubes being in close contact with the surface of the active material and intersecting the measurement lines, and dividing the total number of the carbon nanotubes by the total length of the measurement lines on the active material surface.

Abstract: A metal-oxygen cell capable of improving cycle performance is provided. The metal-oxygen cell 1 includes a positive electrode 2 that contains an oxygen storage material and uses oxygen as an active material, a negative electrode 3 that uses a metal as an active material, and an electrolyte layer 4 sandwiched between the positive electrode 2 and the negative electrode 3 and containing an electrolyte solution, effecting cell reactions of the positive electrode 2 on a surface of the oxygen storage material. The positive electrode 2 contains a conductive polymer that is capable of suppressing permeation of oxygen and conducting metal ions and covers at least a part of the surface of the oxygen storage material.

Abstract: Provided is an electrode mixture layer capable of reducing internal resistance by use of a carbon nanotube molding. The electrode mixture layer includes an active material and a conductor of carbon nanotubes in close contact with the surface of the active material, and the number density of the carbon nanotubes is 4 tubes/?m or more. The number density is defined as a value obtained by providing measurement lines on a scanning electron microscope image of a surface of the electrode mixture layer at 0.3 ?m intervals both longitudinally and laterally, measuring the total number of the carbon nanotubes being in close contact with the surface of the active material and intersecting the measurement lines, and dividing the total number of the carbon nanotubes by the total length of the measurement lines on the active material surface.

Abstract: Provided is a metal oxygen battery 1 including a positive electrode 2 having oxygen as an active material, a negative electrode 3 having metallic lithium as an active material, and an electrolyte layer 4 interposed between the positive electrode 2 and negative electrode 3. The positive electrode 2 contains oxygen storage material including mixed crystal of hexagonal composite metal oxide expressed by the general formula AxByOz (in which, A is one type of metal selected from a group of Y, Sc, La, Sr, Ba, Zr, Au, Ag, Pt, Pd, B is one type of metal selected from a group of Mn, Ti, Ru, Zr, Ni, Cr, and x=1, 1?y?2, 1?z?7, provided that a case where both A and B are Zr is excluded) and one or more non-hexagonal composite metal oxide expressed by the general formula AxByOz.

Abstract: A lithium ion oxygen battery capable of achieving a high energy density without being decreased in performance due to moisture or carbon dioxide in the atmosphere is provided. A lithium ion oxygen battery 1 comprises a positive electrode 2 containing oxygen as an active material and a lithium source, a negative electrode 3 made of a material capable of occluding or releasing lithium ions, and an electrolyte layer 4 sandwiched between the positive electrode 2 and the negative electrode 3 and capable of conducting the lithium ions. The positive electrode 2, the negative electrode 3, and the electrolyte layer 4 are housed in a hermetic case 5. The positive electrode 2 comprises an oxygen storage material and a lithium compound (excluding a combined metal oxide of lithium and another metal) as the lithium source.

Abstract: There is provided a metal oxygen battery which is capable of obtaining superior batter capacity when starting use from charging. In the metal oxygen battery 1 including a positive electrode 2, which includes an oxygen-storing material and lithium oxide, and uses oxygen as an active substance, a negative electrode 3 capable of absorbing and discharging lithium ions, and an electrolyte layer 4 interposed between the positive electrode 2 and the negative electrode 3, in which the positive electrode 2, the negative electrode 3, and the electrolyte layer 4 are hermetically accommodated in a case 5, the oxygen-storing material has an oxygen amount stored at a start of charge time diluted.

Abstract: A metal-oxygen cell capable of improving cycle performance is provided. The metal-oxygen cell 1 includes a positive electrode 2 that contains an oxygen storage material and uses oxygen as an active material, a negative electrode 3 that uses a metal as an active material, and an electrolyte layer 4 sandwiched between the positive electrode 2 and the negative electrode 3 and containing an electrolyte solution, effecting cell reactions of the positive electrode 2 on a surface of the oxygen storage material. The positive electrode 2 contains a conductive polymer that is capable of suppressing permeation of oxygen and conducting metal ions and covers at least a part of the surface of the oxygen storage material.

Abstract: An oxygen cell capable of minimizing overvoltage increases is provided. An oxygen cell 1 comprises a positive electrode 2 that uses oxygen as an active material, a negative electrode 3 that uses metallic lithium as an active material, and an electrolyte layer 4 sandwiched between the positive electrode 2 and the negative electrode 3, wherein the positive electrode 2 contains a lithium compound.

Abstract: Provided is a metal oxygen battery 1 including a positive electrode 2 having oxygen as an active material, a negative electrode 3 having metallic lithium as an active material, and an electrolyte layer 4 interposed between the positive electrode 2 and negative electrode 3. The positive electrode 2 contains oxygen storage material including mixed crystal of hexagonal composite metal oxide expressed by the general formula AxByOz (in which, A is one type of metal selected from a group of Y, Sc, La, Sr, Ba, Zr, Au, Ag, Pt, Pd, B is one type of metal selected from a group of Mn, Ti, Ru, Zr, Ni, Cr, and x=1, 1?y?2, 1?z?7, provided that a case where both A and B are Zr is excluded) and one or more non-hexagonal composite metal oxide expressed by the general formula AxByOz.

Abstract: There is provided a metal oxygen battery which uses an oxygen-storing material containing YMnO3 as a positive electrode material, and can reduce the discharge overpotential. The metal oxygen battery 1 has a positive electrode 2 to which oxygen is applied as an active substance, a negative electrode 3 to which metallic lithium is applied as an active substance, and an electrolyte layer 4 interposed between the positive electrode 2 and the negative electrode 3. The positive electrode 2 contains, as an oxygen-storing material, a composite metal oxide obtained by crushing and mixing a yttrium salt, a manganese salt and an organic acid, primarily calcining the mixture, and thereafter, adding a zirconium salt to the obtained primarily calcined material, and secondarily calcining the mixture, the composite metal oxide containing YMnO3 and ZrO2.

Abstract: A metal air battery capable of obtaining larger charge-discharge capacity than before, is provided. The metal air battery 1 includes a negative electrode 2 including one metal selected from the group consisting of Li, Zn, Mg, Al, and Fe, a positive electrode 3 including a mixture of a carbon material and an oxygen-storing material, and an electrolyte interposed between the negative electrode and the positive electrode. The electrolyte is immersed in a separator 4. The negative electrode 2 includes metal Li. The oxygen-storing material includes a composite oxide of yttrium and manganese. The oxygen-storing material preferably has a hexagonal structure.

Abstract: The invention provides a catalyst for catalytically removing three components, which are carbon monoxide, hydrocarbons and nitrogen oxides, from combustion exhaust gas generated by combusting fuel at around the stoichiometric air to fuel ratio. The catalyst includes: (A) a first catalyst component including at least rhodium, platinum, or palladium in a content of 0.01 to 0.5% by weight; and (B) a second catalyst component, which is the remainder, including a composite oxide or a mixed oxide including (a) at least zirconium oxide or titanium oxide, and (b) an oxide of at least praseodymium, yttrium, neodymium, tungsten, niobium, silicon, or aluminum, wherein the content of the oxide (a) in the composite oxide or the mixed oxide is in a range of 70 to 95% by weight. The invention further provides a two-layer catalyst that includes a surface catalyst layer containing the above-mentioned catalyst.

Abstract: An oxygen cell capable of minimizing overvoltage increases is provided. An oxygen cell 1 comprises a positive electrode 2 that uses oxygen as an active material, a negative electrode 3 that uses metallic lithium as an active material, and an electrolyte layer 4 sandwiched between the positive electrode 2 and the negative electrode 3, wherein the positive electrode 2 contains a lithium compound.