Toyota Jidosha Kabushiki Kaisha

Other

Aisin Aw Co., Ltd.

Kansai Paint Company, Ltd.

Satoshi Yoshida

Hiroyuki Kano

Yuki Matsushita

Hisataka Fujimaki

Koichi Sugiura

Mineo Hiramatsu

Toru Sugiyama

Yukihisa Katayama

Tooru Matsubara

Katsumi Kono

Masaru Hori

Masahiko Ando

Hiroyuki Yamaguchi

Norimi Asahara

Masami Kondo

Naoyuki Fukaya

Akira Isogai

Akira Fukatsu

Yukiyoshi Ueno

Masahiro Iwasaki

Yasushi Tsuchida

Yoshikazu Tanaka

Hideki Takamatsu

Tomokazu Inagawa

Takayuki Kubo

Yasushi Sato

Hiroyasu Kado

Takayoshi Doi

Yoichi Naruse

Masao Saitou

Naoyuki Iwata

Masato Matsubara

Hiroki Kubo

Yuichiro Hama

Yuki Ishigaki

Kiyoshi Watanabe

Atsushi Tsukamoto

Yuji Imanaga

Tenmei Nisino

Masakazu Tamaru

An object of the present invention is to further lower the viscosity of a sulfur compound solid electrolyte dispersion paste while suppressing sedimentation of a sulfur compound solid electrolyte. Provided is a sulfur compound solid electrolyte dispersion paste for secondary batteries, containing a dispersion resin (A), a sulfur compound solid electrolyte (B) and a solvent (C), wherein the dispersion resin (A) contains at least one type of acrylic resin (a) having a weight-average molecular weight of 3000 or higher.

Sulfur compound solid electrolyte dispersion paste for secondary batteries, sulfur compound solid electrolyte layer for secondary batteries using same, and all-solid-state secondary battery using same

A main object of the present invention is to provide an anode active material capable of enhancing improvement of heat resistance in an all solid secondary battery. The present invention solves the problem by providing an anode active material comprising an active material particle having carbon as a main component, and a coating layer containing LiPO(2&#x2264;x&#x2264;4, 3&#x2264;y&#x2264;5) and formed on a surface of the active material particle.

Anode active material and all solid secondary battery

An all-solid-state secondary battery system comprising: a sealed battery having formed by housing, in an outer package, a stacked battery; a jig adapted to constrain the sealed battery in the stacking direction; one or more contact pressure sensors provided at least either between an outermost layer surface of the stacked battery and the outer package or in the inside of the stacked battery; one or more gas pressure sensors provided in a space inside the outer package; and a control device adapted to stop charging by judging as an overcharge state only when the change in contact pressure sensed by at least one of the contact pressure sensors is equal to or more than a threshold value, and the change in gas pressure sensed by at least one of the gas pressure sensors is equal to or more than the threshold value.

All-solid-state secondary battery system

A laser welding apparatus for joining a first member and a second member together by laser welding includes: a first laser beam applying device that applies a laser beam to a border area between the first member and the second member; and a second laser beam applying device that applies a laser beam to a laser beam application spot of each of the first member and the second member, the laser beam application spot being located ahead of a laser beam application spot to which the laser beam is applied by the first laser beam applying device, in a laser welding forward direction.

Laser welding apparatus and laser welding method

The main object of the present invention is to provide an all solid state battery in which compatibility between battery performance and safety is intended. The present invention attains the object by providing an all solid state battery comprising a cathode layer containing a cathode active material, an anode layer containing an anode active material, and a solid electrolyte layer formed between the cathode layer and the anode layer, containing a first sulfide solid electrolyte material, characterized in that a ratio of ion resistance of the whole all solid state battery to ion resistance of the solid electrolyte layer is 3.8 or less, and the ion resistance of the solid electrolyte layer is 7.6 &#x3a9;&#xb7;cmor more and 16 &#x3a9;&#xb7;cmor less.

All solid state battery

The problem of the present invention is to provide a coated active material having a soft coating layer and capable of improving a contact area. The present invention solves the above-mentioned problem by providing a coated active material comprising a cathode active material and a coating layer for coating the above-mentioned cathode active material, containing an Li ion conductive oxide, wherein the above-mentioned coating layer further contains lithium carbonate.

Coated active material and lithium solid state battery

The invention relates to a method for manufacturing a composite positive electrode active material being a composite of a positive electrode active material and carbon nanotubes. The manufacturing method includes preparing an aqueous solution of a starting material of a positive electrode active material containing a starting material of the positive electrode active material, and an aqueous solution of solubilized carbon nanotubes containing the carbon nanotubes and a solubilizing material that is composed of a water-soluble polymer whose solubilization retention rate of carbon nanotubes does not decrease with rising temperature; and synthesizing a positive electrode active material-carbon nanotube composite by mixing the aqueous solution of a starting material of a positive electrode active material and the aqueous solution of solubilized carbon nanotubes, and performing hydrothermal synthesis.

Method for manufacturing composite positive electrode active material

In an all-solid secondary battery, in an electrode active material layer of at least one of positive and negative electrode bodies, a total content ratio, which is represented by a ratio of mass of an electrolyte contained in the electrode active material layer to mass of an active material contained in the electrode active material layer, is larger than 1; and the electrode active material layer of the at least one of the positive and negative electrode bodies has a composition distribution in which a local content ratio, which is represented by a ratio of mass of the electrolyte contained in a portion of the electrode active material layer to mass of the active material contained in the portion of the electrode active material layer, increases from a solid electrolyte interface toward a current collector interface in a thickness direction of the electrode active material layer.

All-solid secondary battery with graded electrodes

A negative electrode () for a lithium secondary battery, including a negative electrode collector (), and a negative electrode active substance layer () that is supported on the negative electrode collector () and includes carbon nanowalls () which are formed on the negative electrode collector (), and a negative electrode active substance () which is supported on the carbon nanowalls ().

Negative electrode for lithium secondary battery, method for preparing the negative electrode, lithium secondary battery having the negative electrode, and vehicle having the lithium secondary battery

A fuel cell structure comprises a diffusion layer and/or a catalyst layer which are made of a carbonaceous porous material having a nano-size structure, such as carbon nanowall (CNW). A method of manufacturing the structure is also disclosed. The structure and method simplify the process of manufacturing a fuel cell electrode comprised of an electrode catalyst layer and a gas diffusion layer. The electrical conductivity of the catalyst layer is increased and the diffusion efficiency of the diffusion layer is improved, whereby the electricity generation efficiency of the fuel cell can be improved.

Fuel cell structure and method of manufacturing same

The degree of freedom in the shape of channels in a separator is increased, enabling an optimum gas channel to be designed, enabling a sufficient supply of gas below gas channel ribs, and improving cell performance through the reduction in diffusion polarization. Drainage property is also improved and flooding is prevented, thereby reducing diffusion polarization and improving cell performance. Cell performance is also improved through the reduction of contact resistance. A fuel cell separator comprises a separator substrate on which gas channel ribs are formed through vapor-phase growth of a carbon-based porous material with a nanosize structure. An electrode structure for a fuel cell, methods of manufacturing the separator and the fuel cell, and a solid polymer fuel cell comprising the electrode structure.

Fuel cell separator with a vapor-phase grown carbon-based porous material of nanosize structure

A shift control device of an automatic transmission comprising detection means for detecting a shift from a non-drive to a drive position; output means for outputting a command to execute an engine output lowering; detection means for detecting a transmission input revolution number and control means for engaging the friction engagement element by direct pressure control in response to a detection of said transmission input revolution number having been decreased to a predetermined value.

Shift control device of automatic transmission

The present invention provides inspection of a transmission with higher precision and in a shorter period of time. Before a finished A/T is inspected, a V/B ASSY and an ECU are inspected together by a V/B tester in a subsidiary line. A solenoid current command value (a characteristic value inherent in the A/T) for a linear solenoid of the V/B ASSY is corrected and written into the ECU through CAN communication. Spring load of a return spring SP and stroke of the piston of a hydraulic servo for a frictional engagement element are measured. Actually measured values or corrected values of the spring load and the stroke are stored. In the final inspection of the A/T a finished-product tester reads the stored characteristic values and transmits them to the ECU integrated with the A/T through CAN communication. The characteristic values are then written into the ECU. The finished-product tester inspects the finished A/T product, using the characteristic values thus written into the ECU.

Power train inspection system, power train inspected by power train inspection system, and control unit for power train

Growing community of inventors

Toyota, Japan

Satoshi Yoshida