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:
Jan. 31, 2023
Filed:
Jul. 19, 2017
Samsung Sdi Co., Ltd., Yongin-si, KR;
Jongmin Kim, Yongin-si, KR;
Jiyoon Kim, Yongin-si, KR;
Pilsang Yun, Yongin-si, KR;
Donggyu Chang, Yongin-si, KR;
Kwanghwan Cho, Yongin-si, KR;
Jangsuk Hyun, Yongin-si, KR;
Jinhwa Kim, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A nickel-based active material for a lithium secondary battery, a method of preparing the nickel-based active material, and a lithium secondary battery including a positive electrode including the nickel-based active material, the nickel-based active material comprising a secondary particle having an outer portion with a radially arranged structure and an inner portion with an irregular porous structure, wherein the inner portion of the secondary particle has a larger pore size than the outer portion of the secondary particle.