Toyota Jidosha Kabushiki Kaisha

Hiroshi Suyama

Christopher Edward Lee

Chihiro Yada

Duncan Clifford Alan Smith

Shoji Yokoishi

Thierry Le Gall

Shigenori Hama

Koji Kawamoto

Brian Elliott Hayden

Hideki Nakayama

Satoshi Wakasugi

Shingo Ohta

Shinji Nakanishi

Gen Ikeda

Yukihisa Katayama

Kazushi Wakayama

Tomohiro Kuroki

Naotaka Sawada

Brian Elliot Hayden

Makio Kon

Nozomu Kobayashi

A zinc secondary battery includes a negative electrode body, a separator for the zinc secondary battery, and a positive electrode body provided in this order, and each impregnated with an electrolyte. The negative electrode body includes a negative electrode active material layer including zinc and zinc oxide. The positive electrode body includes a positive electrode active material layer including at least one nickel hydroxide or nickel oxyhydroxide. The separator includes a zirconium sulfate-containing porous layer and at least one porous base material layer that are stacked on each other, wherein the zirconium sulfate-containing porous layer includes a porous layer with zirconium sulfate particles adhered to the porous layer.

Zinc secondary battery and separator for zinc secondary battery

The present disclosure provides a separator for a zinc secondary battery that can inhibit short circuiting in a zinc secondary battery. The separator for a zinc secondary battery of the disclosure has a porous substrate layer and a titanium oxide-containing porous layer laminated onto the porous substrate layer, wherein the titanium oxide-containing porous layer comprises a titanium oxide represented by TiO, where 0<x, 0<y, and y<2x. The titanium oxide may be TiO, TiO, TiO, TiO, TiO, TiO, TiO, TiO, TiO, TiO, TiO, TiOor TiO.

Separator for zinc secondary battery

A separator for a zinc secondary battery according to the present disclosure includes a zirconium sulfate-containing porous layer and a porous base material layer that are stacked on each other. The porous base material layer, the zirconium sulfate-containing porous layer, and the porous base material layer may be stacked in this order. The porous base material layer may be a resin porous layer. A zinc secondary battery according to the present disclosure includes the separator for a zinc secondary battery according to the present disclosure.

The present disclosure provides a separator for a zinc secondary battery that can inhibit short circuiting in a zinc secondary battery. The separator for a zinc secondary battery of the disclosure has a porous substrate layer and a titanium oxide-containing porous layer laminated onto the porous substrate layer, wherein the titanium oxide-containing porous layer comprises a titanium oxide represented by TiO, where 0<x, 0<y, and y<2x. The titanium oxide may be TiO, TiO, TiO, TiO, TiO, TiO, TiO, TiO, TiO, TiO, TO, TOor TO.

Provided is a method for producing a composite alloy for use in an electrode for an alkaline storage battery, including a powder preparation step of preparing a hydrogen storage alloy powder containing Ti and Cr and having a BCC structure, an etching step of applying an acid to the hydrogen storage alloy powder prepared in the powder preparation step, a Pd film forming step of coating the surface of the hydrogen storage alloy powder subjected to the etching step with Pd using a substitution plating method, and a heat treatment step of heating the hydrogen storage alloy powder having a Pd film formed, at said heating being a temperature of 500&#xb0; C. or less, wherein in the Pd coating forming step, the hydrogen storage alloy powder is coated with Pd under the condition that the Pd element weight ratio of the composite alloy to be produced is 0.47% or more.

Method for producing composite alloy and method for producing electrode

Provided is an aqueous battery configured to use hydroxide ions (OH) as carrier ions. The aqueous battery is an aqueous battery comprising a cathode layer, an anode layer and an aqueous liquid electrolyte, wherein the cathode layer contains, as a cathode active material, a graphite having a rhombohedral crystal structure; wherein the anode layer contains, as an anode active material, at least one selected from the group consisting of an elemental Zn, an elemental Cd, an elemental Fe, a Zn alloy, a Cd alloy, an Fe alloy, ZnO, Cd(OH), Fe(OH)and a hydrogen storage alloy; and wherein, as an electrolyte, at least one selected from the group consisting of KOH and NaOH is dissolved in the aqueous liquid electrolyte.

Aqueous battery

Electrolysis of an aqueous electrolyte solution on a surface of an anode is suppressed when an aqueous lithium ion secondary battery is charged/discharged. In an aqueous electrolyte solution that is used for an aqueous lithium ion secondary battery, at least one metal cation selected from an aluminum ion, a titanium ion, a manganese ion, a zinc ion, a gallium ion, a yttrium ion, a zirconium ion, an indium ion, a lanthanum ion, a cerium ion, a neodymium ion, and a hafnium ion is contained so that its content is more than 0 mol and no more than 0.01 mol per kilogram of the aqueous electrolyte solution, in addition to a lithium ion and at least one imide based anion.

Aqueous electrolyte solution, and aqueous lithium ion secondary battery

A battery with excellent output characteristics and stability. The battery comprising a cathode, an anode and a separator disposed between the cathode and the anode, wherein the cathode comprises an aqueous electrolyte and a cathode active material; wherein the anode comprises an anode active material; wherein the separator comprises a first oxide electrolyte sintered body and a resin; wherein the first oxide electrolyte sintered body has grain boundaries between crystal particles of a garnet-type ion-conducting oxide represented by a general formula (A); wherein a number average particle diameter of the crystal particles is 3 &#x3bc;m or less; and wherein the first oxide electrolyte sintered body satisfies the following formula 1: R/(R+R)&#x2264;0.6 where Ris an intragranular resistance value that is an ion conductivity resistance inside the crystal particles, and Ris a grain boundary resistance value that is an ion conductivity resistance of the grain boundaries between the crystal particles.

Battery

Provided is a liquid electrolyte for lithium ion batteries, which shows an increased oxidation-side potential in a potential window than ever before. A liquid electrolyte for lithium ion secondary batteries, the liquid electrolyte containing a lithium salt of a sulfonimide and water, wherein the liquid electrolyte contains at least one kind of anion selected from the group consisting of an orthophosphoric ion, a pyrophosphate ion, an anion resulting from dissociation of phosphorous acid or a salt thereof, and an anion resulting from dissociation of phosphinic acid or a salt thereof.

Liquid electrolyte for lithium ion secondary batteries, method for producing the liquid electrolyte, and lithium ion secondary battery

There is provided a negative electrode current collector that is used in contact with an aqueous electrolyte solution in an aqueous lithium ion secondary battery, including a surface in contact with the aqueous electrolyte solution, the surface including a material containing at least one selected from the group consisting of Ti, Pb, Zn, Sn, Mg, Zr and In as a main component.

Negative electrode current collector, negative electrode, and aqueous lithium ion secondary battery

Disclosed is an air cell with higher energy density than before. An air cell comprises an electrolyte solution containing a potassium hydroxide solution having a pH of 17.3 or more under a temperature condition of 23&#xb0; C., an anode containing iron, and a cathode.

Air cell

An electrolyte for metal-air batteries, which is able to inhibit self-discharge of metal-air batteries, and a metal-air battery using the electrolyte. The electrolyte for metal-air batteries containing an aqueous solution that comprises at least one self-discharge inhibitor selected from the group consisting of MHPO, MPO, MPO, MHPO, MHPO, LHPO, MLPO, LPOand LHPO, where M is any one selected from the group consisting of Li, K, Na, Rb, Cs and Fr, and L is any one selected from the group consisting of Mg, Ca, Sr, Ba and Ra.

Electrolyte for metal-air batteries, and metal-air battery

An electrolyte for metal-air batteries, which is able to inhibit the self-discharge of metal-air batteries, and a metal-air battery using the electrolyte. The electrolyte for metal-air batteries having an anode containing at least one kind of metal element selected from aluminum and magnesium, may comprise an aqueous solution comprising a self-discharge inhibitor containing at least one kind of ion selected from the group consisting of an HPOanion and a Cacation and at least one kind of ion selected from the group consisting of a CHSanion, an SOanion and an SCNanion.

Electrolyte for metal-air batteries and metal-air battery

A lithium ion secondary battery includes an aqueous electrolyte solution and has a high discharge capacity. The lithium ion secondary battery includes an anode layer including an anode active material, a cathode layer including a cathode active material, and an electrolyte solution including a solvent and an electrolyte, wherein the anode active material includes elemental sulfur, the cathode active material includes Li element, such as a Li-containing compound, the solvent includes water as a main component, the electrolyte includes lithium bis(trifluoromethanesulfonyl)imide, and the electrolyte solution includes no less than 10 mol of the lithium bis(trifluoromethanesulfonyl)imide per 1 kg of the water.

Lithium ion secondary battery

An electrolyte for iron-air batteries, which is able to increase the discharge capacity of iron-air batteries without concentration control, and an iron-air battery using the electrolyte. The electrolyte for iron-air batteries having an anode containing an iron element may comprise an aqueous solution comprising a discharge reaction promoter containing at least one kind of anion selected from the group consisting of SCNanions, SOanions and (CH)NCSSanions.

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Mishima, Japan

Hiroshi Suyama