GENEVA, March 16 -- ANSTEEL BEIJING RESEARCH INSTITUTE CO., LTD. (Ansteel Beijing Research Institute, North District of Future Science and Technology CityChangping District, Beijing 102200), 鞍钢集团北京研究院有限公司 (中国北京市昌平区未来科技城北区鞍钢北京研究院内) filed a patent application (PCT/CN2025/093678) for "HARD CARBON NEGATIVE ELECTRODE MATERIAL, PREPARATION METHOD FOR HARD CARBON NEGATIVE ELECTRODE MATERIAL, AND SODIUM-ION BATTERY" on May 09, 2025. With publication no. WO/2026/051406, the details related to the paten...