Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Kyoto University

Matsushita Battery Industrial Co., Ltd.

Satoshi Shibutani

Yukihiro Okada

Kazuyoshi Honda

Masahiro Takada

Katsumi Kozu

Toshihiko Ichinose

Hideyuki Ueda

Takashi Akiyama

Kohji Yuasa

Nobuhiko Hojo

Nobuaki Nagao

Masaya Ugaji

Keiichi Takahashi

Tsuyoshi Nishio

Yasutaka Kogetsu

Sadayuki Okazaki

Shinji Mino

Yuko Ogawa

Mikio Murozono

So Kuranaka

Kuniyoshi Omura

Yasuharu Shinokawa

Aoi Tanaka

Kazuhito Hatoh

Satoru Fujii

Takeshi Abe

Hideharu Takezawa

Toshitada Sato

Hiromasa Yagi

Zempachi Ogumi

Shinsuke Fukuda

Masato Hosaka

Aoi Muta

Noriyuki Uchida

Daisuke Suetsugu

Yuki Tokuda

Takeshi Hibino

Yasutaka Noguchi

Akira Hanafusa

Hideaki Oyama

Noriaki Amo

Shigeo Kondoh

This secondary battery comprises a positive electrode, a negative electrode, a separator positioned between the positive electrode and the negative electrode, and an electrolyte. The positive electrode has a positive electrode current collector, a positive electrode mixture layer containing a positive electrode active material, and an additional layer containing an inactive material. The inactive material is an Li-containing transition metal oxide having a crystal structure belonging to one space group from among Fm3m, C2/M, Immm, and P3m1. The inactive material content of the additional layer is 60 mass % or greater, and the basis weight of the additional layer is 3.8 g/mto 50 g/m(inclusive).

Secondary battery with positive electrode additional layer including inert material

This positive electrode includes a current collector, an intermediate layer which is formed at least on one surface of the current collector, and a composite material layer which is formed on the intermediate layer. The intermediate layer includes metal compound particles, a conductive material, and a binding material. The metal compound particles comprise at least one selected from a sulfated oxide, hydroxide, or oxide of alkali earth metal or alkali metal.

Secondary battery positive electrode and secondary battery

An electrolytic: solution for electrochemical devices includes: a salt consisting of a bifluoride anion and a cation; a compound containing boron; and an organic solvent.

Electrolytic solution for electrochemical devices and electrochemical device in which the electrolytic solution is used

A conveyance systemA of a film-forming apparatusA includes a blowing rollerhaving a function of supplying a cooling gas toward a substrate. The blowing roller has the first shelland the internal block. The first shellhas a plurality of first through holesas a gas supply channel, and is rotatable in synchronization with the substrate. The internal blockis disposed inside the first shell. A manifoldis defined by the internal blockinside the first shell. The manifoldis formed so as to introduce the gas toward the plurality of first through holeswithin the range of a holding angle. A clearancefacing the plurality of first through holesoutside the range of the holding angle is further formed inside the first shell. In the radial direction, the manifoldhas a relatively large dimension, and the clearancehas a relatively small dimension.

Thin film-manufacturing apparatus,thin film-manufacturing method,and substrate-conveying roller

Deterioration of the degree of vacuum in a vacuum chamber is prevented while securing adequate cooling performance by gas cooling. A substrateis provided in a vacuum, and the cooling bodyis provided close to a film non-formation surface of the substrate. A thin film is formed by depositing a film forming material on a film formation surface of the substratewhile introducing a cooling gas into between the substrateand the cooling body. At this time, a gas which reacts with the film forming material is introduced as the cooling gas.

Method for forming thin film while providing cooling gas to rear surface of substrate

In order to enhance charge and discharge efficiency and to improve cycle characteristics by increasing a facing area between a positive electrode active material and a negative electrode active material, in a negative electrode for lithium secondary battery having a current collector and an active material layer carried on the current collector, the active material layer includes a plurality of columnar particles. The columnar particles include an element of silicon, and are tilted toward the normal direction of the current collector. Angle &#x3b8; formed between the columnar particles and the normal direction of the current collector is preferably 10&#xb0;&#x2266;&#x3b8;&#x3c;90&#xb0;.

Lithium secondary battery

A negative electrodefor a nonaqueous electrolytic secondary cell includes a current collectorand a plurality of active material bodiesformed on a surface of the current collectorat intervals; each active material bodycontains a material for occluding or releasing lithium; and a plurality of projectionsare formed on a part of a side surface of each active material body

Negative electrode for nonaqueous electrolyte secondary battery

A clean power supply unit with a high fuel utilization rate using a fuel cell is provided. The power supply unit of the present invention comprises a fuel cell using methanol as fuel; a secondary battery for supplying power to a load; a fuel cell control part for controlling the amount of fuel and/or air supplied to the above-mentioned fuel cell; and a power converter for converting the power output from the above-mentioned fuel cell to a predetermined voltage or current, supplying power to the load and/or the above-mentioned secondary battery and controlling the supplied power so as to fall within a predetermined range including the value at which the amount of methanol discharged from the above-mentioned fuel cell becomes minimized.

Power supply unit

A method for activating a direct oxidation fuel cell including an anode, a cathode, and a proton-conductive electrolyte membrane interposed between the anode and the cathode is provided. The anode and the cathode each have a catalyst layer on a face in contact with the proton-conductive electrolyte membrane. This method activates the fuel cell by passing a current through the fuel cell from an external power source, with the positive electrode and the negative electrode of the external power source connected to the anode and the cathode of the fuel cell, respectively, while supplying an organic fuel and an inert gas to the anode and the cathode, respectively.

Method for activating fuel cell

A method for operating a direct methanol fuel cell is provided. The fuel cell includes a fuel cell main body having a fuel electrode and an air electrode disposed in opposing positions on either side of an electrolyte film. In this method, an aqueous methanol solution is supplied directly to the fuel electrode. A quantity of the aqueous methanol solution supplied is controlled in accordance with an electric current value drawn from the fuel cell main body so as to minimize a quantity of unused methanol within a discharge fluid discharged from the fuel electrode.

Method for operating fuel cell and fuel cell system

To accelerate a film formation rate in forming a negative electrode active material film by vapor deposition using an evaporation source containing Si as a principal component, and to provide an electrode for lithium batteries which is superior in productivity, and keeps the charge and discharge capacity at high level are contemplated. The method of manufacturing an electrode for lithium batteries of the present invention includes the steps of: providing an evaporation source containing Si and Fe to give a molar ratio of Fe/(Si+Fe) being no less than 0.0005 and no greater than 0.15; and vapor deposition by melting the evaporation source and permitting evaporation to allow for vapor deposition on a collector directly or through an underlying layer. The electrode for lithium batteries of the present invention includes a collector, and a negative electrode active material film which includes SiFeO(wherein, 0&#x3c;x&#x3c;2, and 0.0001&#x2266;y/(1+y)&#x2266;0.03) and is laminated on the collector directly or through an underlying layer.

Electrode for lithium batteries and method of manufacturing electrode for lithium batteries

In a fuel cell system, leakage of a fuel and a by-product produced in oxidizing a fuel, and leakage thereof out of a fuel cell by evaporation are prevented. For this purpose, in a fuel cell system comprising an electrogenerating portion having a fuel electrode, an oxidant electrode and an electrolyte sandwiched between the fuel electrode and the oxidant electrode; a fuel accommodating container accommodating a fuel to be supplied to the fuel electrode; a fuel supplying portion supplying a fuel from the fuel accommodating container to the electrogenerating portion; and a fuel discharging portion connected to the fuel electrode, the fuel accommodating container, the fuel supplying portion, the fuel electrode and the fuel discharging portion are air-tightly connected.

Fuel cell system

Growing community of inventors

Hirakata, Japan

Satoshi Shibutani