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:
Oct. 08, 2024
Filed:
Feb. 18, 2020
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Shuhei Oda, Ehime, JP;
SUMITOMO METAL MINING CO., LTD., Tokyo, JP;
Panasonic Energy Co., Ltd., Osaka, JP;
Abstract
The present invention provides a method of manufacturing a positive electrode active material for a lithium ion secondary battery. The method includes a water-washing step of washing a lithium-nickel composite oxide containing lithium (Li), nickel (Ni), and an element M (M) (wherein, the element M is at least one element selected from Mn, V, Mg, Mo, Nb, T, Co, and Al) with water, and conducting a filtration to form a washed cake; a filling step of filling, the washed cake which is a material to be dried and a tungsten compound without lithium into a dryer; and a drying step of drying the material to be dried by the dryer with flowing, wherein the filling step includes a time period in which the washed cake and the tungsten compound without lithium are supplied to the dryer at the same time.