MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617071591 A) filed by Ningde Amperex Technology Limited on June 09, 2026, for Secondary Battery And Electrical Apparatus.
Inventor includes He, Jun.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: The present application provides a secondary battery and an electrical apparatus. The secondary battery comprises an electrode assembly, the electrode assembly comprising a positive electrode sheet, a negative electrode sheet and a separator. The positive electrode sheet comprises a positive electrode current collector and a positive electrode active material layer, and the positive electrode active material layer comprises a positive electrode active material. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer comprises a negative electrode active material. Multiple positive electrode tabs are integrally formed at and extend from the positive electrode current collector, and multiple negative electrode tabs are integrally formed at and extend from the negative electrode current collector. The positive electrode active material layer has a coating weight of Wz, the negative electrode active material layer has a coating weight of Wf, and Wz and Wf satisfy: 1.6Wf = Wz = 2.2Wf, 3.25mg/cm2 = Wf = 5.84mg/cm2. The Dv99 of the positive electrode active material is 27µm to 33µm, and the Dv99 of the negative electrode active material is 23µm to 28µm. The described configuration can ensure the processing reliability of the secondary battery while improving the cycle performance and dynamic performance of the secondary battery.
Disclaimer: Curated by HT Syndication.
