Active material, nonaqueous electrolyte battery, battery pack and battery module
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United States of America Patent
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Jan 1, 2019
Grant Date -
Sep 22, 2016
app pub date -
Mar 10, 2016
filing date -
Mar 19, 2015
priority date (Note) -
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Abstract
In general, according to one embodiment, there is provided an active material. The active material contains active material primary particles of a monoclinic niobium-titanium composite oxide. The monoclinic niobium-titanium composite oxide contains at least one element selected from the group consisting of Mo, V, and W. A content of the at least one element in the monoclinic niobium-titanium composite oxide is within a range of 0.01 atm % or more and 2 atm % or less. Each of the active material primary particles has an aspect ratio within a range of 1 or more and less than 4 of a primary particle and a crystallite size within a range of 5 nm or more and 90 nm or less.
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