Honda Motor Co., Ltd.

Sumitomo Electric Industries, Limited

Kiyoshi Tanaami

Yuji Isogai

Takuya Taniuchi

Hiroshi Sakai

Takashi Mukai

Naoto Yamashita

Taichi Sakamoto

Shintaro Aoyagi

Mao Hori

Tomohiro Kinoshita

Akihisa Tanaka

Yuta Ikeuchi

Satoshi Nakada

Bunichi Saito

Makiko Takahashi

Toshimitsu Tanaka

Takashi Nakagawa

Takahiro Naka

Akihisa Hosoe

Kazuki Okuno

Masahiro Ohta

Toshio Tokune

Izuru Kanoya

Toshiyuki Ariga

Minako Onodera

Tadao Nakatsuji

Keita Ishizaki

Takuya Nishinuma

Akihiro Yoshizawa

Hideki Sakai

Taichi Goto

Kenshi Inoue

Takahiro Komori

Kikuo Senoo

Kazuya Inada

Hiroshi Takebayashi

To provide a nonaqueous electrolyte secondary battery which enables to suppress durability deterioration, improve energy density, and further suppress a decrease in the function of the nonaqueous electrolyte secondary battery cell. A nonaqueous electrolyte secondary battery, comprising: a positive electrode; and a negative electrode, wherein the negative electrode has: a current collector comprising a porous metal body; and a negative electrode material disposed in pores of the porous metal body, the negative electrode material comprises a negative electrode active material comprising a silicon-based material, a skeleton-forming agent comprising a silicate having a siloxane bond, a conductive auxiliary, and a binder, and a content of the skeleton-forming agent in an outside in a surface direction of the negative electrode is higher than a content of the skeleton-forming agent in an inside in the surface direction of the negative electrode.

Nonaqueous electrolyte secondary battery

To provide a negative electrode for nonaqueous electrolyte secondary batteries, by which the structural deterioration of the electrode is suppressed and cycle characteristics can be improved by absorbing the expansion and contraction of a silicon-based active material placed in the inside of a current collector made of porous metal, and a nonaqueous electrolyte secondary battery including the same. A negative electrode for nonaqueous electrolyte secondary batteries, having a current collector made of porous metal, and a negative electrode material placed in pores of the porous metal, the negative electrode material including a negative electrode active material including a silicon-based material; a skeleton forming agent including a silicate having a siloxane bond; a conductive additive; a binder; and a fibrous material.

Negative electrode for nonaqueous electrolyte secondary batteries and nonaqueous electrolyte secondary battery including the same

In a lithium ion secondary battery (), a positive electrode () and a negative electrode () are alternately adjacent to each other via separators () and (). The positive electrode () includes a positive electrode current collector composed of a metal porous body, a first positive electrode active material () held on one side of the positive electrode current collector, and a second positive electrode active material () held on the other side. The negative electrode () includes a negative electrode current collector composed of a metal porous body, a first negative electrode active material () held on one side of the negative electrode current collector, and a second negative electrode active material () held on the other side. The first positive electrode active material () faces the first negative electrode active material (), and the positive electrode active material () faces the second negative electrode active material ().

Lithium ion secondary battery

Provided are a negative electrode that is for use in a non-aqueous electrolyte secondary battery, includes a porous metal body as a current collector, contains a skeleton-forming agent highly infiltrated in the current collector so that it is less likely to suffer from structural degradation and provides improved cycle durability; and a non-aqueous electrolyte secondary battery including such a negative electrode. The negative electrode for use in a non-aqueous electrolyte secondary battery includes a current collector including a porous metal body; a first negative electrode material disposed in pores of the porous metal body and including a conductive aid, a binder, and a negative electrode active material including a silicon-based material; and a second negative electrode material disposed in pores of the porous metal body and including a skeleton-forming agent including a silicate having a siloxane bond.

Negative electrode for use in non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery including same

An object is to provide a non-aqueous electrolyte secondary battery negative electrode that can suppress a deterioration in durability and improve energy density, and a non-aqueous electrolyte secondary battery including the same. A non-aqueous electrolyte secondary battery negative electrode, comprising: a collector formed of a porous metal body, and a negative electrode material disposed in pores of the porous metal body, wherein the negative electrode material comprises a negative electrode active material formed of a silicon-based material, a skeleton-forming agent comprising a silicate having a siloxane bond, a conductivity aid, and a binder.

Non-aqueous electrolyte secondary battery negative electrode and non-aqueous electrolyte secondary battery including same

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/&#x3bc;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 &#x3bc;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.

Electrode mixture layer

A metal-oxygen cell capable of improving cycle performance is provided. The metal-oxygen cellincludes a positive electrodethat contains an oxygen storage material and uses oxygen as an active material, a negative electrodethat uses a metal as an active material, and an electrolyte layersandwiched between the positive electrodeand the negative electrodeand containing an electrolyte solution, effecting cell reactions of the positive electrodeon a surface of the oxygen storage material. The positive electrodecontains 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.

Metal-oxygen cell

Provided is a metal oxygen batteryincluding a positive electrodehaving oxygen as an active material, a negative electrodehaving metallic lithium as an active material, and an electrolyte layerinterposed between the positive electrodeand negative electrode. The positive electrodecontains oxygen storage material including mixed crystal of hexagonal composite metal oxide expressed by the general formula ABO(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&#x2266;y&#x2266;2, 1&#x2266;z&#x2266;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 ABO.

Metal oxygen battery and a method for manufacturing oxygen storage material used therein

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 batterycomprises a positive electrodecontaining oxygen as an active material and a lithium source, a negative electrodemade of a material capable of occluding or releasing lithium ions, and an electrolyte layersandwiched between the positive electrodeand the negative electrodeand capable of conducting the lithium ions. The positive electrode, the negative electrode, and the electrolyte layerare housed in a hermetic case. The positive electrodecomprises an oxygen storage material and a lithium compound (excluding a combined metal oxide of lithium and another metal) as the lithium source.

Lithium ion oxygen battery

There is provided a metal oxygen battery which is capable of obtaining superior batter capacity when starting use from charging. In the metal oxygen batteryincluding a positive electrode, which includes an oxygen-storing material and lithium oxide, and uses oxygen as an active substance, a negative electrodecapable of absorbing and discharging lithium ions, and an electrolyte layerinterposed between the positive electrodeand the negative electrode, in which the positive electrode, the negative electrode, and the electrolyte layerare hermetically accommodated in a case, the oxygen-storing material has an oxygen amount stored at a start of charge time diluted.

Metal oxygen battery

An oxygen cell capable of minimizing overvoltage increases is provided. An oxygen cellcomprises a positive electrodethat uses oxygen as an active material, a negative electrodethat uses metallic lithium as an active material, and an electrolyte layersandwiched between the positive electrodeand the negative electrode, wherein the positive electrodecontains a lithium compound.

Oxygen cell

There is provided a metal oxygen battery which uses an oxygen-storing material containing YMnOas a positive electrode material, and can reduce the discharge overpotential. The metal oxygen batteryhas a positive electrodeto which oxygen is applied as an active substance, a negative electrodeto which metallic lithium is applied as an active substance, and an electrolyte layerinterposed between the positive electrodeand the negative electrode. The positive electrodecontains, 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 YMnOand ZrO.

A metal air battery capable of obtaining larger charge-discharge capacity than before, is provided. The metal air batteryincludes a negative electrodeincluding one metal selected from the group consisting of Li, Zn, Mg, Al, and Fe, a positive electrodeincluding 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. The negative electrodeincludes metal Li. The oxygen-storing material includes a composite oxide of yttrium and manganese. The oxygen-storing material preferably has a hexagonal structure.

Metal-air battery

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:

Low level noble metal-supporting three-way catalyst

According to a first embodiment of a production method of an oxidation catalyst device for exhaust gas purification of the present invention, a plurality of slurries containing a catalyst precursor prepared from mutually different organic acids is coated respectively on a porous filter carrier () and calcined. According to a second embodiment of the present invention, the slurry contains the catalyst precursor having a particle diameter distribution ranging from 0.5 to 10 &#x3bc;m, and the slurry has a viscosity equal to or below 2.0 mPa&#xb7;s. The oxidation catalyst device of the present invention is composed of a composite metal oxide on a surface of a cell division and a surface of an air pore of the porous filter carrier having a wall-flow structure.

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Saitama, Japan

Kiyoshi Tanaami