Progress Of Low-Temperature Carbonization of Cellulose as Anode Material for Sodium-Ion Batteries

Abstract

With the increasingly serious environmental issues brought by the use of conventional fossil energy sources, and under the idea of "carbon peak and carbon neutral" put forward by China, it has been a global consensus to drive the transition of the energy consumption framework from conventional fossil energy sources to low-carbon, clean reproducible energy sources, and associated energy preservation technologies. So far, secondary battery systems as stable and efficient clean energy storage have been the focus of attention, and the most important energy storage devices are lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs), which are also potential battery systems under recent research. Nevertheless, the scarcity and grossly uneven allocation of lithium resources as well as the security problems of lithium batteries have limited the further growth of LIBs. Due to these problems, the scientific community has been back to sodium-ion battery studies. By comparing with lithium-ion batteries, sodium resources for sodium-ion batteries are cheaper, richer, and safer, so the social demand for sodium-ion batteries continues to increase, but the larger the ionic radius of sodium ions, the poorer the reversible capacity, the shorter the life span and other problems still exist, and the development of high-performance anode materials is an effective method to solve the core problems of sodium-ion batteries, cellulose-based hard carbon materials have a green preparation process, favorable ion Cellulose-based hard carbon material is a potential anode material for sodium-ion batteries with the green preparation process, beneficial ion transport channel and special porous framework.