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:
Sep. 19, 2018
Lg Chem, Ltd., Seoul, KR;
Dong Hun Lee, Daejeon, KR;
Hye Lim Jeon, Daejeon, KR;
Sang Wook Lee, Daejeon, KR;
Eun Sol Lho, Daejeon, KR;
Wang Mo Jung, Daejeon, KR;
Min Suk Kang, Daejeon, KR;
So Ra Baek, Daejeon, KR;
Ji Young Park, Daejeon, KR;
Abstract
Provided are various embodiments of a positive electrode for a secondary battery, which in one embodiment includes a first positive electrode material mixture layer formed on a positive electrode collector, and a second positive electrode material mixture layer formed on the first positive electrode material mixture layer, wherein the first positive electrode material mixture layer has an operating voltage of 4.25 V to 6.0 V and includes an active material for overcharge which generates lithium and gas during charge; a method of preparing such a positive electrode for a secondary battery; and a lithium secondary battery including such a positive electrode.