MUMBAI, India, Aug. 12 -- Intellectual Property India has published a patent application (202617041279 A) filed by Ningde Amperex Technology Limited on March 31, 2026, for Negative Electrode Sheet, Electrochemical Apparatus, And Electrical Device.
Inventors include Zhao, Long; and Gong, Zuzhen.
The application for the patent was published on August 07, 2026, under issue no. 32/2026.
Abstract: The present application relates to the technical field of batteries, and discloses a negative electrode sheet (10), an electrochemical apparatus, and an electrical device. The negative electrode sheet (10) comprises a first active material layer (11), a first current collector (12), and a second active material layer (13); the first active material layer (11) comprises a first coating (111) and a second coating (112) provided between the first coating (111) and the first current collector (12); in a first direction (X1), a first end (112a) of the second coating (112) extends beyond a first end (111a) of the first coating (111), so that the first active material layer (11) has a first single-layer portion (M1); and/or, in a second direction (X2), a second end (112b) of the second coating (112) extends beyond a second end (111b) of the first coating (111), so that the first active material layer (11) has a second single-layer portion (M2); and the first direction (X1) is opposite to the second direction (X2). In the first direction (X1) or the second direction (X2) of the negative electrode sheet (10), the second coating (112) extends beyond the first coating (111). Thus, the problem of damage to the first current collector (12) due to two ends of the active material layer being prone to over-compression during rolling is solved, the probability of breakage of the negative electrode sheet (10) during rolling is reduced, and the production yield of the negative electrode sheet (10) is improved.
Disclaimer: Curated by HT Syndication.
