Sou Hu Cai Jing·2026-01-07 06:22Group 1 - The core point of the article is the patent application by Sinopec for a method to prepare Pb-modified graphite felt electrodes for iron-chromium flow batteries, which aims to enhance battery performance through a cost-effective and simple process [1] - The patent, published as CN121282219A, describes a method involving the deposition of Pb particles on pre-treated graphite felt using an electro-deposition technique, followed by heat treatment [1] - The prepared Pb-modified graphite felt electrodes exhibit excellent electrochemical activity, which can significantly improve the performance of iron-chromium flow batteries [1] Group 2 - Sinopec, established in 2000 and headquartered in Beijing, primarily engages in oil and gas extraction, with a registered capital of approximately 12.17 billion RMB [1] - The company has invested in 267 enterprises and participated in 5000 bidding projects, holding 5000 patent records and 45 trademark information [1] - Sinopec (Dalian) Petrochemical Research Institute, founded in 2022 in Dalian, focuses on research and experimental development, with a registered capital of approximately 338.46 million RMB [2] - This research institute has invested in 1 enterprise, participated in 2826 bidding projects, and holds 5000 patent records [2]