Cattail-Grass-Derived Porous Carbon as High-Capacity Anode Material for Li-Ion Batteries
Hui Li,
Lingyue Song,
Dongxing Huo,
Yu Yang,
Ning Zhang,
Jinglong Liang
Affiliations
Hui Li
Key Laboratory of Modern Metallurgical Technology, Ministry of Education, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China
Lingyue Song
Key Laboratory of Modern Metallurgical Technology, Ministry of Education, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China
Dongxing Huo
College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, China
Yu Yang
Comprehensive Test and Analysis Center, North China University of Science and Technology, Tangshan 063210, China
Ning Zhang
Key Laboratory of Modern Metallurgical Technology, Ministry of Education, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China
Jinglong Liang
Key Laboratory of Modern Metallurgical Technology, Ministry of Education, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China
Cattail-grass-derived porous carbon as high-capacity anode materials were prepared via high-temperature carbonization and activation with KOH. The samples exhibited different structures and morphologies with increasing treatment time. It was found that the cattail grass with activation treatment—1 (CGA-1) sample obtained at 800 °C for 1 h presented excellent electrochemical performance. As an anode material for lithium-ion batteries, CGA-1 showed a high charge–discharge capacity of 814.7 mAh g−1 at the current density of 0.1 A g−1 after 400 cycles, which suggests that it has a great potential for energy storage.
