MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202617068593 A) filed by Contemporary Amperex Technology Co. , Limited on June 01, 2026, for Lithium-Ion Battery And Electrical Apparatus.
Inventors include Wu, Kai; Wu, Zirui; Jin, Chao; Ye, Yonghuang; Dai, Zhipeng; Zheng, Shibing; and Yan, Guanfusheng.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: A battery cell, a battery, an electrical apparatus, and a battery cell core, belonging to the technical field of batteries. When the length-width ratio m of a positive electrode sheet satisfies 1 =m=6 and the compaction density ? of a positive electrode active material layer satisfies 3.3 g/cm3=?=3.7 g/cm3, the mass ratio of single- crystal particles of the positive electrode active material is controlled to be no less than 50%, and the porosity of the positive electrode active material layer is controlled to be 23% to 33%. Since single-crystal particles are less prone to fracture during cold pressing and long-term charging/discharging processes, excessive active specific surface area is not exposed compared to polycrystalline particles, thereby reducing side reactions with an electrolyte and reducing the increase of positive electrode impedance in a battery. Moreover, the occurrence of the situation in which an effective conductive network cannot be established at a new interface due to material particle fracture is reduced, so that the phenomenon of local potential increase caused by a particle "island" formed by the positive electrode active material is prevented, thereby achieving mitigation of the DCR in a battery cell core and mitigation of the electrode sheet resistance of a high-energy-density battery cell core.
Disclaimer: Curated by HT Syndication.
