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. 17, 2026
Filed:
Mar. 30, 2022
Samsung Sdi Co., Ltd., Yongin-si, KR;
Byungjin Choi, Yongin-si, KR;
Suk-Gi Hong, Yongin-si, KR;
Youngsoo Kim, Yongin-si, KR;
Donghee Yeon, Yongin-si, KR;
Pilsang Yun, Yongin-si, KR;
Sangil Han, Yongin-si, KR;
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Abstract
A composite cathode active material, a preparation method thereof, a cathode layer for an all-solid-state battery, and an all-solid-state battery including the cathode layer, the composite cathode active material for the all-solid-state battery including a secondary particle including a plurality of primary particles; and a buffer layer on a surface of the secondary particle, wherein the secondary particle includes a nickel lithium transition metal oxide represented by Formula 1, and the buffer layer includes a metal oxide represented by Formula 2,LiNiMO Formula 1LiAEO. Formula 2