Abstract:
With the rapid development of electronic products, electric vehicles and smart grids, lithium-ion batteries (LIBs) are required to not only possess superior lithium storage performance, but also be low-cost, abundant resources, and foremost sustainable. Based on the advantages of carbon anode materials, a smart strategy to convert the used bamboo chopsticks into uniform carbon fibers (CFs) by using the abundant natural fibers in chopsticks after a simple hydrothermal treatment was proposed. Compared with graphite electrodes, bamboo-based CFs exhibits excellent electrochemical performance as a sustainable anode of LIBs. Moreover, the lithium storage performance of CFs can be further upgraded by integrating nanostructured molybdenum disulfide (MoS
2) onto their surface by hydrothermal method to form the CFs/MoS
2 composite with a core-shell structure. The electro-chemical results show that the CFs electrode cycled 500 times at a current density of 200 mA/g, has a specific discharge capacity of 381.1 mA·h/g. And the CFs/MoS
2 composite electrode still maintains a specific discharge capacity of 843 mA·h/g at a high current density of 1000 mA/g for 1000 cycles.