Ngk Insulators, Inc.

Toyota Jidosha Kabushiki Kaisha

Ayano Kobayashi

Makoto Ohmori

Shinji Fujisaki

Shigenori Hama

Norihiro Ose

Hajime Hasegawa

Yuki Matsushita

Hisataka Fujimaki

Hideaki Nishimura

Hideyo Ebisuzaki

Shigetaka Nagamatsu

Takayuki Uchiyama

Mitsuru Tateishi

Yusuke Okuhata

Dai Kato

Naohiro Mashimo

Naoki Osada

Mariko Okamoto

Yasuhide Kurimoto

Takafumi Terahai

Yohei Miura

An information collection system corrects vehicle state information of each of a plurality of vehicles. Identification information and the vehicle state information is transmitted by a first transmitter, the identification information being information based on which a target vehicle is specified from among the vehicles. Disclosure position information and the identification information are transmitted by a second transmitter, the disclosure position information being set as position information on the target vehicle based on (i) alternative position information indicating a position of the target vehicle in an alternative manner and (ii) disclosure information indicating a disclosure range to disclose the alternative position information. The information collection system includes: an acquisition portion configured to acquire the identification information, the vehicle state information, and the disclosure position information; and a computing device configured to associate the vehicle state information with the disclosure position information based on the identification information.

Information collection system

Provided is a method for producing a sulfide-based solid electrolyte with a balance between the ion conductivity of the sulfide-based solid electrolyte and the heat generation amount of an electrode layer containing the sulfide-based solid electrolyte during an electrode reaction. Disclosed is a method for producing a sulfide-based solid electrolyte comprising a sulfide glass-based material that contains at least one lithium halide compound selected from the group consisting of LiI, LiBr and LiCl, the method comprising immersing the sulfide glass-based material, which is at least one sulfide glass-based material selected from the group consisting of a sulfide glass and a glass ceramic, in an organic solvent having a solubility parameter of 7.0 or more and 8.8 or less, for 1 hour to 100 hours.

Sulfide-based solid electrolyte, method for producing the sulfide-based solid electrolyte, and method for producing all-solid-state battery

A main object of the present disclosure is to provide a stacked battery in which an unevenness of short circuit resistance among a plurality of cells is suppressed. The present disclosure achieves the object by providing a stacked battery comprising: a plurality of cells in a thickness direction, wherein the plurality of cells are electrically connected in parallel; each of the plurality of cells includes a cathode current collector, a cathode active material layer, a solid electrolyte layer, an anode active material layer, and an anode current collector, in this order; the stacked battery includes a surface-side cell that is located on a surface side of the stacked battery, and a center-side cell that is located on a center side rather than the surface-side cell; and a contact resistance between the cathode current collector and the anode current collector in the surface-side cell is more than a contact resistance between the cathode current collector and the anode current collector in the center-side cell.

Stacked battery

A main object of the present disclosure is to provide a stacked battery in which the unevenness of short circuit resistance among a plurality of cells is suppressed. The present disclosure achieves the object by providing a stacked battery comprising: a plurality of cells in a thickness direction, wherein the plurality of cells are electrically connected in parallel; each of the plurality of cells includes a cathode current collector, a cathode active material layer, a solid electrolyte layer, an anode active material layer, and an anode current collector, in this order; the stacked battery includes a surface-side cell that is located on a surface side of the stacked battery, and a center-side cell that is located on a center side rather than the surface-side cell; and the surface-side cell and the center-side cell satisfy at least one of: condition i) an elongation rate of the cathode current collector in the surface-side cell is less than an elongation rate of the cathode current collector in the center-side cell; and condition ii) an elongation rate of the anode current collector in the surface-side cell is less than an elongation rate of the anode current collector in the center-side cell.

An objective of the present disclosure is to provide a stacked battery that suppresses sneak current caused by an unevenness of a short circuit resistance among a plurality of cells. The present disclosure provides a stacked battery comprising: a plurality of cells in a thickness direction, wherein the plurality of cells are electrically connected in parallel; the stacked battery includes a surface-side cell that is located on a surface side of the stacked battery, and a center-side cell that is located on a center side rather than the surface-side cell; wherein a resistance of the cathode current collecting tab in the surface-side cell is more than a resistance of the cathode current collecting tab in the center-side cell; or a resistance of the anode current collecting tab in the surface-side cell is more than a resistance of the anode current collecting tab in the center-side cell.

A solid oxide fuel cell includes a cathode including a complex oxide having a perovskite structure expressed by the formula ABO, an anode, and a solid electrolyte layer disposed between the cathode and the anode. The cathode includes phosphorus, chromium and boron, a content amount of the phosphorus in the cathode is at least 10 ppm and no more than 50 ppm, a content amount of the chromium in the cathode is at least 50 ppm and no more than 500 ppm, and a content amount of the boron in the cathode is at least 5 ppm and no more than 50 ppm.

Solid oxide fuel cell

A cathode material used in an anode and a cathode contains (Co, Fe)Oand a perovskite type oxide that is expressed by the general formula ABOand includes at least one of La and Sr at the A site. A content ratio of (Co, Fe)Oin the cathode material is at least 0.23 wt % and no more than 8.6 wt %.

Cathode material and fuel cell

A main object of the present disclosure is to provide a stacked battery in which an unevenness of short circuit resistance among a plurality of cells is suppressed. The present disclosure achieves the object by providing a stacked battery comprising: a plurality of cells in a thickness direction, wherein the plurality of cells are electrically connected in parallel; each of the plurality of cells includes a cathode current collector, a cathode active material layer, a solid electrolyte layer, an anode active material layer, and an anode current collector, in this order; the stacked battery includes a surface-side cell that is located on a surface side of the stacked battery, and a center-side cell that is located on a center side rather than the surface-side cell; and the surface-side cell and the center-side cell satisfy at least one of: condition i) an electron conductivity of the cathode active material layer in the surface-side cell is less than an electron conductivity of the cathode active material layer in the center-side cell; and condition ii) an electron conductivity of the anode active material layer in the surface-side cell is less than an electron conductivity of the anode active material layer in the center-side cell.

A cathode material used in an anode and a cathode contains (Co,Fe)Oand a perovskite type oxide that is expressed by the general formula ABOand includes at least one of La and Sr at the A site. A content ratio of (Co,Fe)Oin the cathode material is at least 0.23 wt % and no more than 8.6 wt %.

A solid oxide fuel cell includes a cathode, and an anode, and a solid electrolyte layer disposed between the cathode and the anode. The cathode includes a complex oxide having a perovskite structure expressed by the general formula ABO. A standard deviation value for the atomic percentage of respective elements at the A site measured using energy dispersive X-ray spectroscopy at 10 spots in a single field on the sectional surface of the cathode is no more than 10.4.

A fuel cell comprises an anode, a cathode, and a solid electrolyte layer. The solid electrolyte layer includes a first region disposed on the anode and a second region disposed between the first region and the cathode. The ratio of the ceria-based material in the first region is less than or equal to 0.5%. The ratio of the tetragonal crystal zirconia in the first region is greater than or equal to 3.0%. The atomic weight ratio of nickel to zirconia in the first region is less than or equal to 3.0 at %. The ratio of the ceria-based material in the second region is greater than or equal to 1.0%. The ratio of the tetragonal crystal zirconia in the second region is less than or equal to 0.1%.

Fuel cell

A solid oxide fuel cell comprises a solid electrolyte layer, a barrier layer, and a cathode. The cathode includes a cathode current collecting layer and a cathode active layer. The cathode active layer includes a plurality of micro-cracks in a surface region within a predetermined distance from the interface between the barrier layer and the cathode active layer.

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Nagoya, Japan

Ayano Kobayashi