TITANATE COMPOUND, ALKALI METAL TITANATE COMPOUND AND METHOD FOR PRODUCING SAME, AND POWER STORAGE DEVICE USING TITANATE COMPOUND AND ALKALI METAL TITANATE COMPOUND AS ACTIVE MATERIAL

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United States of America Patent

APP PUB NO 20160344025A1
SERIAL NO

15112632

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Abstract

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Provided is a titanate compound capable of further increasing the capacity of a power storage device when used as an electrode active material thereof. The titanate compound according to the present invention includes at least 60%, based on the number thereof, of particles having an anisotropic shape and a specific surface area of 10-30 m2/g as measured by a nitrogen adsorption BET one-point method, and having a long-axis diameter (L) in the range of 0.12/g, a step for annealing the resultant pulverized product, and a step for then bringing the alkali metal titanate compound into contact with an acidic aqueous solution and substituting at least a portion of alkali metal cations in the alkali metal titanate compound with protons, and the method is preferably further provided with a step for heating the proton-substituted titanate compound.

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Patent Owner(s)

Patent OwnerAddress
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY3-1 KASUMIGASEKI 1-CHOME CHIYODA-KU TOKYO 100-8921
ISHIHARA SANGYO KAISHA LTD3-15 EDOBORI 1-CHOME NISHI-KU OSAKA-SHI OSAKA 5500002

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
AKIMOTO, Junji Tsukuba, JP 22 19
KATAOKA, Kunimitsu Tsukuba, JP 17 15
KUMASHIRO, Yoshimasa Yokkaichi, JP 7 39
NAGAI, Hideaki Tsukuba, JP 34 172
SOTOKAWA, Tomoyuki Yokkaichi, JP 6 19

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