Patent ID: 9174854
Filing Date: 2015-11-03
Classification: C01G,C01P,H01M,Y02E,Y02P,Y10T

Abstract:
1. A bronze-type titanium oxide in which potassium tetratitanate expressed by a general formula K 2 Ti 4 O 9 is obtained by converting a mixture of a titanium compound and a potassium compound into potassium dititanate expressed by a general formula K 2 Ti 2 O 5 by burning processing, then eluting a part of potassium ions of the potassium dititanate to change a composition thereof and thereafter performing thermal processing, and which is obtained by eluting potassium of the obtained potassium tetratitanate and performing thermal processing, wherein, in an X-ray diffraction spectrum of the potassium tetratitanate obtained by using a Cu—Kα ray source, between a peak intensity Ia of a (200) plane, a peak intensity Ic of a (004) plane and a peak intensity Ib of a (31-3) plane, a relationship of Ia>Ib>Ic and a relationship of 5.0>Ia/Ic>2.0 are satisfied, and a concentration of potassium in the bronze-type titanium oxide is equal to or more than 0.1 mass percent but equal to or less than 2.0 mass percent.