Kabushiki Kaisha Toshiba

Yuki Tomioka

Masaru Hayashi

Fuminobu Tezuka

Kunihiko Sasaki

Masayuki Onuma

Tetsuya Tachibe

Motonaka Yabuki

A disk apparatus having an open inner structure and a collector liquid, which are housed in a hermetically sealed collecting container, are heated to a certain collecting temperature by a heating mechanism so as to permit a gas to be generated from the disk apparatus and to evaporate the collector liquid. The vapor of the collector liquid brings into contact with the disk apparatus and collects the gas generated from the disk apparatus and, then, the collecting container is cooled so as to liquefy the vapor that has collected the gas generated from the disk apparatus.

Gas collecting method and gas collecting apparatus

A humidity controller arranged within a casing of an HDD includes a container housing a moisture absorbing agent, an air communication port that permits communication between the inner space of the casing and the inner space of the container, and an opening-closing control section configured to open-close the air communication port in accordance with the humidity inside the casing. The opening-closing control section is arranged in the container and includes a humidity sensitive member that is elongated or shrunk in accordance with the humidity to open-close the air communication port.

Magnetic disk apparatus with humidity controller

Disclosed is a method of reclaiming a cathodic active material of lithium ion secondary batteries. The lithium ion secondary battery is broken and the casing and the content are separated to remove the casing from the content. The content is dissolved into a mineral acid to separate remaining non-dissolved content from the mineral acid to obtain a liquid containing the cathodic active material represented by the formula: LiMO,, where M is a transition metal element: cobalt, nickel and manganese. A lithium salt is added to the liquid, and the cathodic active material is recovered from the liquid in the form of a mixture of lithium compound and the transition metal compound, which is calcined and reclaimed into the cathodic active material.

Method of reclaiming cathodic active material of lithium ion secondary battery

Disclosed is a method of recovering lithium from a battery containing lithium such as a lithium ion secondary battery. The lithium-containing member of the battery is dissolved with an acidic liquid, and an alkaline material is added to the obtained lithium solution to transform a transition metal which may be dissolved in the lithium solution into a metal hydroxide precipitation, whereby the metal hydroxide precipitate is separated from the lithium solution. The lithium solution is then dried to obtain a solid containing the lithium, and the lithium is eluted from the solid with a non-aqueous solvent. Retrieving lithium from the lithium eluate is accomplished by use of a cation exchanger.

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Sayama, Japan

Yuki Tomioka