Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Jidoshokki

National Institute for Materials Science

Nichia Corporation

Shinshu University

Japan Metals & Chemicals Co., Ltd.

Masato Hozumi

Shin Ushiroda

Keita Niitani

Hiroko Kuwata

Hajime Hasegawa

Motoyoshi Okumura

Atsushi Minagata

Keisuke Omori

Masashi Kodama

Tetsuo Uchikoshi

Yoshio Sakka

Tohru Suzuki

Hideto Yamada

Norihiro Ose

Mitsutoshi Otaki

Koji Kawamoto

Tomoyoshi Ueki

Takuro Kikuchi

Yasuhide Kurimoto

Kengo Haga

Daichi Kosaka

Hideki Yoshida

Takumi Tanaka

Katsuya Teshima

Masato Sonoo

Satoshi Kono

Hiroyuki Sasaki

Toshiya Saito

Katsuyuki Kudo

Koji Hetsugi

Takao Sawa

Saki Notoyama

Tomoki Souma

Takuya Watanabe

Yuuki Maeda

Takeo Okanishi

Shuhei Mochida

A hydrogen storage alloy suitable for a negative electrode of an on-board alkaline storage battery, an alkaline storage battery using this hydrogen storage alloy, and a vehicle; wherein a fine-grained hydrogen storage alloy is used for an alkaline storage battery that has a crystal structure of an AB-type structure as a main phase and is represented by a general formula: (LaSm)MgNiAlCr(where suffixes a, b, c, d, and e meet the following conditions: 0≤a≤0.35, 0.15≤b≤0.30, 0.02≤d≤0.10, 0≤e≤0.10, 3.20≤c+d+e≤3.50, and 0<a+e), and an alkaline storage battery using this hydrogen storage alloy for a negative electrode. A vehicle also includes this alkaline storage battery as an electricity supply source for a motor.

Hydrogen storage alloy for alkaline storage battery, alkaline storage battery using the same as negative electrode, and vehicle

A data management system includes a data management device and an arithmetic device. The data management device is configured to acquire battery data and store, in a distributed ledger, transaction data including information on the acquired battery data. The arithmetic device is configured to acquire the battery data from the data management device and calculate an index using the battery data and a predetermined arithmetic formula. The arithmetic device is configured to offer the index to a disclosure server.

Data management system, disclosure server, and method used therein

A sodium ion secondary battery includes a cyclic organic compound as an active material and a complex hydride as a solid electrolyte, wherein the cyclic organic compound has at least two carbonyl groups —C(═O)—, the at least two carbonyl groups are bonded via a single bond or at least one conjugated double bond, and the complex hydride includes a Na cation and a complex ion containing H.

Sodium ion secondary battery

A negative electrode active material includes a hydrogen storage alloy. The hydrogen storage alloy has an ABcrystal structure. The hydrogen storage alloy includes nickel. The saturation magnetization per unit mass is 1.9 emu·gor more.

Negative electrode active material, negative electrode, alkaline storage battery, and method of producing negative electrode active material

To provide an anode material that can improve the efficiency of the initial charging and discharging, the anode material includes an amorphous glassy carbon material that is an anode active material, and a NaMH compound that is a solid electrolyte.

Anode material for sodium ion battery, and sodium ion battery

Provided is a sodium ion conductor whose sodium ion conductivity is improved more than the conventional. The sodium ion conductor is a molecular crystal constituted of NaCBH, NaCBH, and a sodium halide, the sodium halide having a mol fraction of more than 0 and at most 70 on the basis of the total mol ratio of NaCBH, NaCBH, and the sodium halide.

Sodium ion conductor and solid-state sodium-ion battery

A cathode active material with high durability and a lithium ion secondary battery. The cathode active material is a cathode active material represented by a general formula LiNiCoMnWO(&#x2212;0.05&#x2264;a&#x2264;0.2, x=1&#x2212;y&#x2212;z&#x2212;t, 0&#x2264;y&#x3c;1, 0&#x2264;t&#x3c;1, 0&#x3c;t&#x2264;0.03), wherein the cathode active material satisfies the following formula (1):&#x3c3;1/1&#x2264;0.92&#x2003;&#x2003;(1)where t1 is an element concentration average of insides and grain boundaries of primary particles of a W element, and &#x3c3;1 is an element concentration standard deviation of the insides and grain boundaries of the primary particles of the W element.

Cathode active material and lithium ion secondary battery comprising the same

Provided in the present disclosure is a method for producing a composite cathode active material with low reaction resistance. The method comprises: a coating step of, with a Li ion conductive oxide, coating a cathode active material that is a spinel type oxide including at least a Mn having a valence of +4 to obtain a coated cathode active material; and a heat treating step of heat treating the coated cathode active material to obtain a composite cathode active material; wherein a valence of the Mn in the cathode active material is lower than a valence of the Mn in the cathode active material before coating, and a valence of the Mn is increased by the heat treating.

Method for producing composite cathode active material and composite cathode active material

A method of manufacturing an all-solid-state battery includes a lamination step of laminating a deactivated lithium-containing negative electrode active material layer containing deactivated lithium, a solid electrolyte layer for the all-solid-state battery, and a positive electrode active material layer for the all-solid-state battery such that the solid electrolyte layer for the all-solid-state battery is disposed between the deactivated lithium-containing negative electrode active material layer and the positive electrode active material layer for the all-solid-state battery.

Method of manufacturing all-solid-state battery

In a (001) pole figure of the active material particles, where a plane parallel to the substrate is defined as the equatorial plane, a Lotgering factor f(001) of an A plane and a Lotgering factor f(001) of a B plane satisfy both Expressions (1) and (2) below, the A plane being an equatorial cross section perpendicular to a line that connects the center of the (001) pole figure and a first point of maximum XRD intensity of peaks attributed to (001) planes at the outer periphery of the equatorial plane, the B plane being an equatorial cross section perpendicular to a line that connects the center of the (001) pole figure and a second point of minimum XRD intensity of peaks attributed to the (001) planes at the outer periphery of the equatorial plane:(001)&#x3e;0.3 &#x2003;&#x2003;Expression (1)(001)&#x2212;(001)&#x3c;1.0 &#x2003;&#x2003;Expression (2).

Electrode body, method for producing electrode body, and battery provided with electrode body

A garnet-type solid electrolyte contains a crystal having (110) face, (1-10) face, (112) face, (1-12) face, and (11-2) face, the garnet-type solid electrolyte being LiLaZrO. A battery includes a solid electrolyte interposed between a positive and a negative electrode, the solid electrolyte being the garnet-type solid electrolyte. A method of producing a garnet-type solid electrolyte represented by a composition formula LiLaZrOand has (110) face, (1-10) face, (112) face, (1-12) face, and (11-2) face as a crystal face, including a step of preparing a lithium-containing compound, a lanthanum-containing compound, and a zirconium-containing compound; a step of mixing these compounds such that a molar ratio among the elements satisfies Li:La:Zr=a:b:c (where a is from 120 to 160, b is from 1 to 5, and c is from 1 to 5); and a step of heating the mixture between 400 and 1,200&#xb0; C.

Garnet-type solid electrolyte, secondary battery containing garnet-type solid electrolyte, and method of producing garnet-type solid electrolyte

A production method for an electrode for a battery includes preparing a conductive substrate, and electrode material particles having ion conduction anisotropy; and producing an electrode by attaching the electrode material particles onto the conductive substrate, and applying a magnetic field in a predetermined direction.

Production method for electrode for battery, electrode produced by production method, and battery including electrode

Growing community of inventors

Mishima, Japan

Masato Hozumi