TY - JOUR A1 - Chen, Li-li A1 - Yang, Hua A1 - Jing, Mao-xiang A1 - Han, Chong A1 - Chen, Fei A1 - Hu, Xin-yu A1 - Yuan, Wei-yong A1 - Yao, Shan-shan A1 - Shen, Xiang-qian T1 - A novel all-fiber-based LiFePO4/Li4Ti5O12 battery with self-standing nanofiber membrane electrodes JF - Beilstein Journal of Nanotechnology PY - 2019/// VL - 10 SP - 2229 EP - 2237 SN - 2190-4286 DO - 10.3762/bjnano.10.215 PB - Beilstein-Institut JA - Beilstein J. Nanotechnol. UR - https://doi.org/10.3762/bjnano.10.215 KW - 3D network KW - electrospinning KW - flexible electrodes KW - lithium ion battery KW - nanofiber KW - self-standing electrodes N2 - Electrodes with high conductivity and flexibility are crucial to the development of flexible lithium-ion batteries. In this study, three-dimensional (3D) LiFePO4 and Li4Ti5O12 fiber membrane materials were prepared through electrospinning and directly used as self-standing electrodes for lithium-ion batteries. The structure and morphology of the fibers, and the electrochemical performance of the electrodes and the full battery were characterized. The results show that the LiFePO4 and Li4Ti5O12 fiber membrane electrodes exhibit good rate and cycle performance. In particular, the all-fiber-based gel-state battery composed of LiFePO4 and Li4Ti5O12 fiber membrane electrodes can be charged/discharged for 800 cycles at 1C with a retention capacity of more than 100 mAh·g−1 and a coulombic efficiency close to 100%. The good electrochemical performance is attributed to the high electronic and ionic conductivity provided by the 3D network structure of the self-standing electrodes. This design and preparation method for all-fiber-based lithium-ion batteries provides a novel strategy for the development of high-performance flexible batteries. ER -