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:
Oct. 21, 2025
Filed:
Apr. 25, 2024
Ningde Amperex Technology Limited, Fujian, CN;
Molin Zhou, Ningde, CN;
Ningde Amperex Technology Limited, Ningde, CN;
Abstract
An electrochemical device includes a positive electrode, a negative electrode, a separator, and an electrolyte solution. The positive electrode includes a positive active material layer. The positive active material layer includes a positive active material represented by Formula (1): LiNiM1M2OM3Formula (1). In Formula (1), 0<r≤1, 0<p<1, 0<q<1, 0<p+q<0.5, 0≤s<0.2, M1 and M2 each are independently at least one of Co, Mn, Fe, Ti, Al, V, Cr, Nb, Zr, La, or Y, and M3 is at least one of S, N, F, Cl, or Br. A resistance of the positive electrode is R Ω. A compaction density of the positive electrode is P g/cm. A single-side areal density of the positive electrode is Q g/1540.25 mm. The positive electrode satisfies Formula (2): 3.5≤R·P/Q≤30 Formula (2). The electrolyte solution includes fluoroethylene carbonate.