MUMBAI, India, June 24 -- Intellectual Property India has published a patent application (202617062936 A) filed by Ningde Amperex Technology Limited on May 18, 2026, for Silicon-Carbon Composite Material, Negative Electrode Sheet, Electrochemical Apparatus, And Electronic Apparatus.
Inventor includes Hu, Guangwu.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: A silicon-carbon composite material, a negative electrode sheet, an electrochemical apparatus, and an electronic apparatus. The silicon-carbon composite material comprises elemental silicon and a carbon material. The Raman spectrum of the silicon-carbon composite material satisfies 0.61R/R'0.78, wherein the value of R is the ratio of IA to IB, the value of R' is the ratio of ID to IG, IA represents the intensity of the peak at 521±5 cm-1 in the Raman spectrum of the silicon-carbon composite material, IB represents the intensity of the peak at 480±5 cm-1 in the Raman spectrum of the silicon-carbon composite material, ID represents the intensity of the peak at 1360±5 cm-1 in the Raman spectrum of the silicon-carbon composite material, and IG represents the intensity of the peak at 1580±5 cm-1 in the Raman spectrum of the silicon-carbon composite material. Applying the silicon-carbon composite material having the above characteristics to a negative electrode material of a secondary battery enables the secondary battery to have obviously improved electrical conductivity, low-temperature performance, cycle performance and expansion resistance while keeping a relatively high specific capacity.
Disclaimer: Curated by HT Syndication.
