MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202621102484 A) filed by Epsilon Carbon Private Limited on August 25, 2026, for Carbon-Modified Lithium Iron Phosphate Composite Material And Single-Stage Process For Preparing The Same.
Inventors include Gerhard Nuspl; Christian Bruenig; Kalpesh Pandya; and Omkar Patki.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: The invention relates to a carbon-modified lithium iron phosphate (LFP) composite material in which the carbon phase is derived from at least two carbon precursors differing in physical state at the sintering temperature and comprises two distinct carbon fractions formed during a single solid-state sintering step. A first carbon fraction is generated within and/or at grain boundaries of lithium iron phosphate particles from decomposition of at least one solid carbon precursor present in a precursor mixture. A second carbon fraction is deposited as a substantially continuous external carbon coating from a carbon-containing gas generated by pyrolysis of at least one gas-phase carbon precursor positioned separately from, and out of physical contact with, the precursor mixture but within the same furnace atmosphere. The composite material exhibits a total carbon content of 0.5–2.0 wt.% and a powder compaction density of at least 2.45 g/cm³ with improved rate capability. The invention further provides a single-stage solid-state process for preparing the composite material and electrodes comprising the composite material.
Disclaimer: Curated by HT Syndication.
