An improved high-power battery with increased thermal operating range: C-LiFePO4//C-Li4Ti5O12

► The 18650 cell was charged at 60C (1 min) with 80% of rated capability. ► Li4Ti5O12 allows the replacement of LiPF6 salt by LiTFSI and LiFSI in free EC for lower temperature. ► C-LTO depress the gas during charge discharge cycling and make technology very safe.