Active material for batteries, non-aqueous electrolyte battery, and battery pack
AssigneeKabushiki Kaisha Toshiba
InventorsHiroki Inagaki, Keigo Hoshina, Yasuhiro Harada, Yuki Otani, Norio Takami
Life of this patent
Estimating the term…
Abstract
According to one embodiment, an active material for batteries includes monoclinic β-type titanium composite oxide containing at least one element selected from the group consisting of V, Nb, Ta, Al, Ga, and In, the at least one element being contained in an amount of 0.03 wt % or more and 3 wt % or less.
Claims10
An active material for batteries comprising monoclinic β-type titanium composite oxide containing at least one element selected from the group consisting of V, Nb, Ta, Al, Ga, and In, wherein the monoclinic β-type titanium composite oxide has a space group C2/m crystal structure, and wherein the at least one element is present in the monoclinic β-type titanium composite oxide in an amount of 0.03 wt % or more and 3 wt % or less.
A non-aqueous electrolyte battery comprising:
- an outer case;
- a positive electrode housed in the outer case;
- a negative electrode housed in the outer case which is spatially separated from the positive electrode and contains an active material;
- and
- a non-aqueous electrolyte contained in the outer case,
- wherein the active material of the negative electrode comprises monoclinic β-type titanium composite oxide containing at least one element selected from the group consisting of V, Nb, Ta, Al, Ga, and In, wherein the monoclinic β-type titanium composite oxide has a space group C2/m crystal structure, and wherein the at least one element is present in the monoclinic β-type titanium composite oxide in an amount of 0.03 wt % or more and 3 wt % or less.
Dependencies are inferred from the claim text.