ACTIVE MATERIAL, NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND BATTERY MODULE

摘要

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.

主权项

1. An active material comprising active material primary particles of a monoclinic niobium-titanium composite oxide comprising at least one element selected from the group consisting of Mo, V, and W, wherein:
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; and each of the active material primary particles has an aspect ratio within a range of 1 or more and less than 4 and a crystallite size within a range of 5 nm or more and 90 nm or less.