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:
Aug. 11, 2020
Filed:
Aug. 31, 2018
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Dongjin Ham, Anyang-si, KR;
Jayhyok Song, Suwon-si, KR;
Andrei Kapylou, Suwon-si, KR;
Jinhwan Park, Seoul, KR;
Youhwan Son, Seongnam-si, KR;
San Moon, Hwaseong-si, KR;
Sungjin Ahn, Anyang-si, KR;
Donghee Yeon, Seoul, KR;
Jinsu Ha, Yongin-si, KR;
Kwangjin Park, Seongnam-si, KR;
Byungjin Choi, Seoul, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
SAMSUNG SDI CO., LTD., Gyeonggi-Do, KR;
Abstract
A cathode active material includes a secondary particle including an aggregate of a plurality of primary particles, wherein the secondary particle includes a nickel-containing lithium transition metal oxide having a layered crystal structure, wherein the plurality of primary particles includes a first primary particle having a size greater than about 400 nanometers, a second primary particle having a size less than about 150 nanometers, and a third primary particle having a size of about 150 nanometers to about 400 nanometers, wherein the third primary particle has a area of greater than or equal to about 80% of a total area of the plurality of primary particles, and wherein the secondary particle has a porosity of less than or equal to about 10% of a total area of the cathode active material.