TY - JOUR PY - 2021// TI - Fire-retardant, stable-cycling and high-safety sodium ion battery JO - Angewandte Chemie (International ed. in English) A1 - Yang, Zhuo A1 - Chou, Shulei A1 - He, Jian A1 - Lai, Wei-Hong A1 - Peng, Jian A1 - Liu, Xiao-Hao A1 - He, Xiang-Xi A1 - Guo, Xu-Feng A1 - Li, Li A1 - Qiao, Yun A1 - Ma, Jian-Min A1 - Wu, Minghong SP - ePub EP - ePub VL - ePub IS - ePub N2 - The safety of energy storage equipment has always been a stumbling block to the development of battery, and sodium ion battery is no exception. However, as an ultimate solution, the use of non-flammable electrolyte is susceptible to the side effects, and its poor compatibility with electrode, causing failure of batteries. Here, we report a non-flammable electrolyte design to achieve high-performance sodium ion battery, which resolves the dilemma via regulating the solvation structure of electrolyte by hydrogen bonds and optimizing the electrode-electrolyte interphase. The reported non-flammable electrolyte allows stable charge-discharge cycling of both sodium vanadium phosphate@hard carbon and Prussian blue@hard carbon full pouch cell for more than 120 cycles with a capacity retention of > 85% and high cycling Coulombic efficiency (99.7%).
Language: en
LA - en SN - 1433-7851 UR - http://dx.doi.org/10.1002/anie.202112382 ID - ref1 ER -