The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2020
Filed:
Aug. 22, 2016
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Tatsuya Takahashi, Niihama, JP;
Masashi Iwara, Niihama, JP;
SUMITOMO METAL MINING CO., LTD., Tokyo, JP;
Abstract
A manganese nickel composite hydroxide which serves as a starting material for positive electrode active materials for secondary batteries, and the secondary battery having low resistance and high output characteristics. A manganese nickel composite hydroxide according to the present invention is represented by general formula (A) MnNiM(OH)(wherein 0≤×≤0.27, 0≤y≤0.05, 0≤α≤0.5, and M represents at least one element selected from among Mg, Al, Ca, Ba, Sr, Ti, V, Fe, Cr, Co, Cu, Zr, Nb, Mo and W), and has an SOcontent of 0.90% by weight or less, an Na content of 0.04% by weight or less, a BET specific surface area of from 40 m/g to 70 m/g (inclusive), and a value obtained by [(d-d)/(average particle diameter)] of 0.90 or less, said value being an index indicating the expanse of the particle size distribution.