Title:
ナトリウムイオン二次電池用負極活物質粒子及びその製造方法
Document Type and Number:
Japanese Patent JP7089982
Kind Code:
B2
Abstract:
To provide fine NASICON-type sodium phosphate salt compound particles highly useful as a negative electrode active material for a sodium ion secondary battery.SOLUTION: There is provided a negative electrode active material particle for a sodium ion secondary battery in which a NASICON-type sodium phosphate salt compound particle supports carbon derived from a cellulose nanofiber, the NASICON-type sodium phosphate salt compound particle being represented by the following formula (X): NaTiM(PO)...(X) (in the formula (X), M represents one or two or more selected from among Al, Zr, Sc, In, Fe, Cr, Ga, Y, La, Zn, Si, Mn, Ge, Nd, Sr and V, and a, b and c represent numbers satisfying 0≤a≤2, 1≤b≤2, 0≤c≤1 and a+4b+(valence of M)×c=8.)SELECTED DRAWING: Figure 1
Inventors:
Hiroki Yamashita
Okami Gosho
Okami Gosho
Application Number:
JP2018151698A
Publication Date:
June 23, 2022
Filing Date:
August 10, 2018
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
H01M4/58; H01M4/36
Domestic Patent References:
| JP2018026253A |
Other References:
Jiaojiao Liand et al.,Porous NaTi2(PO4)3@C nanocubes as improved anode for sodium-ion batteries,Materials Research Bulletin,2017年11月,99,343-348,https://doi.org/10.1016/j.materresbull.2017.11.030
Attorney, Agent or Firm:
Alga Patent Office, a patent business corporation