Kabushiki Kaisha Toshiba

Toshiba Energy Systems & Solutions Corporation

Kabushiki Kaihsa Toshiba

Asato Kondo

Takashi Kuboki

Shinji Murai

Shinsuke Matsuno

Akiko Suzuki

Hidesato Saruwatari

Dai Yamamoto

Mitsuru Udatsu

Hideki Satake

Hiromichi Kuriyama

Hiroko Watando

Satoshi Saito

Yoshihiko Nakano

Reiko Yoshimura

Toshihiro Imada

Yasuhiro Kato

Kenji Sano

Takehiko Muramatsu

Yukishige Maezawa

The embodiments provide an acidic gas absorbent having low diffusibility, an acidic gas removal method employing the acidic gas absorbent, and also an acidic gas removal apparatus employing the absorbent. The acidic gas absorbent according to the embodiment comprises: a particular tertiary amine compound, such as, an alkyl dialkanol amine or a hydroxyalkyl piperazine; a halogen-free ionic surfactant; and an aqueous solvent. The embodiments provide not only the acidic gas absorbent but also an acidic gas removal method and apparatus employing the acidic gas absorbent.

Acidic gas absorbent, acidic gas removal method and acidic gas removal apparatus

According to one embodiment, there is provided a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode including a negative electrode active material layer, and a non-aqueous electrolyte. The negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.1 ml to 5 ml per 1 g when heated at 200&#xb0; C. for 1 minute.

Non-aqueous electrolyte secondary battery and production method thereof

A carbon dioxide absorbent of an embodiment includes a heterocyclic amine expressed by Formula (1), and the heterocyclic amine having a pKa of any one amino group included in a heterocyclic ring in Formula (1) in a range of 7.0 or more to 8.6 or less and an organic solvent having a boiling point of 150&#xb0; C. or more at 1 atm. A total mass of the heterocyclic amine and the organic solvent is 70 mass % or more to 100 mass % or less of the carbon dioxide absorbent. Each of Rto Rin Formula (1) is H, oxygen double-bonded with carbon of the heterocyclic ring, CH, OH, or an alkyl chain optionally including a functional group. Xin Formula (1) is H, CH, CO, C(O)OCH, C(O)OCH, C(O)OCH(CH), C(O)OC(CH), C(O)OCH, C(O)CH, or C(O)CH.

Carbon dioxide absorbent and apparatus of separating and recovering carbon dioxide

A carbon dioxide absorbent of an embodiment includes a solid resin compound containing a structural unit expressed by the following formula (1). X in the formula (1) is a halogen element.

Carbon dioxide absorbent and carbon dioxide separation and recovery system

A carbon dioxide absorbent of an embodiment includes a chain amine, a cyclic amine, and an acid. The chain amine is a compound expressed by Formula (1) of FIG.. Rin Formula (1) is hydrogen or an alkyl chain having at least one hydroxyl group and 1 to 7 carbon atoms. Rin Formula (1) is an alkyl chain having at least one hydroxyl group and 1 to 7 carbon atoms. Rin Formula (1) is hydrogen, a straight alkyl chain having 1 to 7 carbon atoms, a branched alkyl chain having 1 to 7 carbon atoms, or a cyclic alkyl chain having 5 to 7 carbon atoms.

An electrode for a nonaqueous electrolyte battery according to the present embodiment includes: a current collector; and an active material layer that is formed on one surface or both surfaces of the current collector. The active material layer contains a fluorine-containing aromatic compound, in which at least one of hydrogen atoms bonded to the aromatic ring has been substituted by fluorine, at 0.01 mass % or more and 1.0 mass % or less.

Electrode for nonaqueous electrolyte battery, nonaqueous electrolyte battery and battery pack

A nonaqueous electrolyte air battery has s positive electrode comprises at least a catalyst which activates oxygen, a conductive material and a binder, when a thermal decomposition starting temperature of the binder is T1&#xb0; C. and a thermal decomposition ending temperature of the binder is T2&#xb0; C. A signal with any of mass numbers of 81, 100, 132 and 200 is present in pyrolysis mass spectrometry of the binder in a range of T1&#xb0; C. to T2&#xb0; C. Where a peak area at T1&#xb0; C. is X and a peak area at T2&#xb0; C. is Y, the X and Y satisfy a relation of 2X&#x2267;Y.

Nonaqueous electrolyte air battery

According to the embodiment, there is provided a nonaqueous electrolyte secondary battery comprising a positive electrode; a negative electrode including a negative electrode active material layer; and a nonaqueous electrolyte. The negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.01 ml to 3 ml per 1 g when heated at 400&#xb0; C. for 1 minute. The nonaqueous electrolyte contains carbon dioxide of 50 ml/L to 1000 ml/L.

Nonaqueous electrolyte secondary battery and production method thereof

The present invention provides a carbon dioxide absorbing solution capable of preventing production of an oxidization degradation product of alkanolamine, that is, BICINE. The carbon dioxide absorbing solution contains an alkanolamine and a sulfur amino acid represented by the formula (1) or (2).

Carbon dioxide absorbing solution

An acidic gas absorbent having a high acidic gas absorption capacity, that is, a high acidic gas absorption amount and a high acidic gas absorption rate, an acidic gas absorption device, and a method for absorbing an acidic gas, are provided. An acidic gas absorbent containing an azabicyclo compound and a primary or secondary amine compound; an acidic gas absorbent containing a heteroaromatic ring compound and a primary or secondary amine compound; an acidic gas removal device using these acidic gas absorbents; and a method for removing an acidic gas are disclosed.

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Yokohama, Japan

Asato Kondo