The as-obtained battery delivered a discharge specific capacity of 104 mAh/g at 80℃ and 42 mAh/g at 25℃, respectively. Furthermore, as reported by Sakamoto and coworkers, an ionic conductivity of 4.0×10−4 S/cm was observed at room temperature for the hotpressed Li7La3Zr2O12 (LLZO) pellet at 1000℃ with 40 MPa pressure[43]. To increase the ionic conductivity of the electrolyte, this group introduced some doping elements at different atomic sites to stabilize the cubic crystal structure of the LLZO pellet.