Kabushiki Kaisha Toshiba

Arisa Yamada

Hideyuki Tsuji

Satoshi Mikoshiba

Jun Tamura

Akihiko Ono

Yuki Kudo

Yoshitsune Sugano

Shinetsu Fujieda

Tatsuoki Kohno

Ryota Kitagawa

Masakazu Yamagiwa

Eishi Tsutsumi

Asahi Motoshige

Akiko Suzuki

Shinji Murai

Nobuyuki Ashikaga

Taro Fukaya

Toshihiro Imada

Yasuhiro Harada

Shinsuke Matsuno

Kenji Sano

Tetsuya Sasakawa

Yasunobu Yamashita

Tomoko Sugizaki

Yumiko Sekiguchi

Yasunari Maekawa

Tomoe Kusama

Yuta Kanai

Akihiro Matsui

Shin Hasegawa

Hirofumi Yasumiishi

Tomohito Ide

Ryoto Kitagawa

Shinichi Sawada

According to one embodiment, a method of producing a secondary battery is provided. The method includes preparing a battery architecture including a positive electrode, a negative electrode, and an electrolyte; adjusting a positive electrode potential to a range of 3.4 V to 3.9 V and a negative electrode potential to a range of 1.5 V to 2.0 V based on an oxidation-reduction potential of lithium, thereby providing a potential adjusted state; and holding the battery architecture in the potential adjusted state at a holding temperature of 50° C. to 90° C. The positive electrode includes a lithium-nickel-cobalt-manganese composite oxide. The negative electrode includes a niobium-titanium composite oxide. The electrolyte includes one or more first organic solvent having a viscosity of 1 cP or less.

Method of producing a secondary battery, and secondary battery

According to one embodiment, an electrode group is provided. The electrode group includes a positive electrode that includes a lithium composite oxide LiMMnO(0&#x3c;x&#x2264;0.5, M is at least one selected from a group consisting of Ni, Cr, Fe, Cu, Co, Mg, and Mo) as a positive electrode active material, a negative electrode that includes a negative electrode active material, a composite electrolyte layer that includes at least one of a solid electrolyte and an inorganic compound containing alumina, and a separator. The composite electrolyte layer and the separator are arranged between the positive electrode and the negative electrode. A density of the composite electrolyte layer is in the range of 1.0 g/cc and 2.2 g/cc.

Electrode group, nonaqueous electrolyte secondary battery, battery pack, and vehicle

An electrochemical reaction device, includes: an electrolytic solution tank including a first storage part to store a first electrolytic solution containing carbon dioxide, and a second storage part to store a second electrolytic solution containing Water: a reduction electrode disposed in the first storing part; an oxidation electrode disposed in the second storing part; a porous both disposed in the first storing part; and a flow path connecting the porous body and an outside of the electrolytic solution tank to supply gas containing carbon dioxide to the porous body.

Electrochemical reaction device

The present embodiments provide: a reduction catalyst having high reaction efficiency, a reduction reactor including the same and a reduction method using the same. This catalyst includes a conductor and an organic layer comprises organic modifying groups capable of binding to the surface of the conductor, wherein the organic modifying groups contain a nitrogen-containing heterocycle.

Reduction catalyst, reduction reactor and reduction method

An electrochemical reaction device in an embodiment includes: a reaction vessel including a first accommodating part to accommodate a first electrolytic solution containing carbon dioxide, and a second accommodating part to accommodate a second electrolytic solution containing water; a reduction electrode disposed in the first accommodating part; an oxidation electrode disposed in the second accommodating part; a power supply electrode connected to the reduction electrode and the oxidation electrode; and a third accommodating part to mix a first gas component produced in the first accommodating part with the first electrolytic solution after the first gas component is produced.

According to one embodiment of a COreduction catalyst of the present invention, a conductive material is immersed in an aqueous solution containing a gold source, and a current or a potential is applied, whereby a highly active COreduction catalyst can be formed in a wide range portion on a surface of the conductive material. According to one embodiment of a COreduction catalyst of the present invention, in a COreduction reaction apparatus including a COreduction electrode having the COreduction catalyst, COis reduced.

[object Object]

An iodine adsorbent of an embodiment includes: a carrier modified with a functional group represented by a formula (1); and a silver ion supported on the carrier, where Ris a polyol group.

Iodine adsorbent and column for water treatment using iodine adsorbent

According to one embodiment, a desalination treatment membrane includes a desalting membrane and a base material which is disposed in close contact with the desalting membrane, wherein a solid salt is fixed to the base material by a graft-polymerization.

Desalination treatment membrane

There is provided an efficient treatment method for boron-containing water capable of reducing an amount of use of medical agent and an amount of generation of sludge. A treatment method for boron-containing water of an embodiment includes a first process of concentrating boron-containing water to obtain boron-concentrated liquid. Further, the method includes a second process of making the boron-concentrated liquid to be brought into contact with a layered inorganic hydroxide, and making the layered inorganic hydroxide adsorb boron in the boron-concentrated liquid to remove boron.

Method for treating boron-containing water

According to one embodiment, an oil adsorbent includes inorganic particles and a polymer formed on surfaces of or between the inorganic particles. The content rate of the inorganic particles is 50% by volume or more and 97% by volume or less relative to the inorganic particles and the polymer, and an area of the inorganic particles is 30% or more and 60% or less relative to a cross-section of the inorganic particles and the polymer.

Oil adsorbent and method of manufacturing oil adsorbent

The present embodiment relates to a method for recovering a boron adsorbent, including: preparing water having an electric resistivity of 0.01 M&#x3a9;&#xb7;cm or more and kept at a temperature within a temperature range; and contacting the water with the boron adsorbent to release boron adsorbed at the boron adsorbent.

Method for recovering a boron adsorbent

An oil adsorbent includes a plurality of particles, each being constituted from at least one of an inorganic particle and an organic particle as a core and a polymer covering the core. The plurality of particles are aggregated to form an aggregate so that a porosity of the aggregate is 70% or more.

Growing community of inventors

Kawasaki, Japan

Arisa Yamada