Title:
金属複合水酸化物とその製造方法、非水電解質二次電池用正極活物質とその製造方法、および非水電解質二次電池
Document Type and Number:
Japanese Patent JP7245422
Kind Code:
B2
Abstract:
Provided are a positive electrode active material for non-aqueous electrolyte secondary battery which achieves a high charge and discharge capacity, high thermal stability, and weather resistance in a secondary battery, a precursor thereof, and the like.A metal composite hydroxide represented by a general formula (1) : Ni1-x-yCoxMnyMz(OH)2+α (where 0.02 ≤ x ≤ 0.3, 0.02 ≤ y ≤ 0.3, 0 ≤ z ≤ 0.05, and -0.5 ≤ α ≤ 0.5 are satisfied and M is at least one element selected from the group consisting of Mg, Ca, Al, Si, Fe, Cr, V, Mo, W, Nb, Ti, and Zr), in which the metal composite hydroxide contains a first particle having a core portion inside the particle and a shell portion formed around the core portion and [(D90-D10)/MV] is 0.80 or more.
Inventors:
Takahiro Toma
Haruki Kaneda
Yuki Oshika
Haruki Kaneda
Yuki Oshika
Application Number:
JP2020501007A
Publication Date:
March 24, 2023
Filing Date:
February 20, 2019
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C01G53/00; H01M4/36; H01M4/505; H01M4/525
Domestic Patent References:
| JP2012256435A | ||||
| JP2017154916A | ||||
| JP2017210395A |
Foreign References:
| US20160126548 |
Attorney, Agent or Firm:
Aya Usami
Yuri Hirota
Yuri Hirota