1 Collaborative Innovation Centre for Marine Biomass Fibres, Materials and Textiles of Shandong Province, College of Chemical and Environmental Engineering, Qingdao University, Qingdao, P. R. China. xiayzh@qdu.edu.cn.
2 Queensland Micro- and Nanotechnology Centre (QMNC), Griffith University, Nathan, Brisbane, Queensland 4111, Australia. d.yang@griffith.edu.au.
3 Collaborative Innovation Centre for Marine Biomass Fibres, Materials and Textiles of Shandong Province, College of Chemical and Environmental Engineering, Qingdao University, Qingdao, P. R. China. xiayzh@qdu.edu.cn and Queensland Micro- and Nanotechnology Centre (QMNC), Griffith University, Nathan, Brisbane, Queensland 4111, Australia. d.yang@griffith.edu.au.
Co3O4 nanoparticle embedded carbonaceous fibres were prepared from Co(2+) coordinated regenerated cellulose fibres, which showed high reversible capacity and excellent cycling stability as anode materials for Li-ion batteries.