Title:
LITHIUM TITANATE POWDER, ELECTRODE USING THE SAME, AND POWER STORAGE DEVICE
Document Type and Number:
Japanese Patent JP2023101247
Kind Code:
A
Abstract:
To provide lithium titanate powder, which is used as an electrode material for a power storage device, can increase an electrode density, and has excellent charge-discharge rate characteristics and cycle characteristics, an electrode using the same, and a power storage device.SOLUTION: Lithium titanate powder contains Li4Ti5O12 as a main component, in which one or more of M1 (M1 is a metallic element of Group 2, Group 12, Group 13, or Group 14, excluding Ti, or molybdenum element) exist in a localized manner, on a surface of a primary particle of the lithium titanate powder, and the lithium titanate powder satisfies the following equations (I) and (II): D50≥1.7 μm (I) and DBET≥0.7 μm (II) (where D50 denotes a particle size at a point where a cumulative volume distribution of the particle size of the primary particle is 50% in the particle size distribution, and DBET denotes a specific surface area equivalent diameter calculated from a specific surface area obtained by the BET method).SELECTED DRAWING: None
Inventors:
OTANI SHINICHIRO
KAWABE KAZUYUKI
SHIMAMOT KEI
FUJII TERUAKI
HARUTA SHINSUKE
KAWABE KAZUYUKI
SHIMAMOT KEI
FUJII TERUAKI
HARUTA SHINSUKE
Application Number:
JP2022001754A
Publication Date:
July 20, 2023
Filing Date:
January 07, 2022
Export Citation:
Assignee:
UBE CORP
International Classes:
C01G23/00; H01G11/46; H01M4/485
Attorney, Agent or Firm:
Patent Attorney Corporation Tokoshie Patent Office