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:
Dec. 07, 2021
Filed:
Sep. 12, 2019
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Abstract
This application relates to a positive electrode plate and a lithium-ion secondary battery, wherein the positive electrode plate comprises a positive electrode current collector and a positive active material layer disposed on at least one surface of the positive electrode current collector, wherein the positive active material layer comprises a first positive active material LiNiMeMOAand a second positive active material LiMnZOB, and wherein the positive electrode plate satisfies: 0.04≤R·P/C≤10, wherein R is the resistance of the positive electrode plate, and the unit of R is Ω; P is the packing density of the positive electrode plate, and the unit of P is g/cm; C is the single-side areal density of the positive electrode plate, the unit of C is g/1540.25 mm. The lithium-ion secondary battery in this application simultaneously has high safety performance, low-temperature kinetic performance, high-temperature cycle performance and high-temperature storage performance.