18:23 Sun 2 Jun 2- Intr... < 00 00 Mock 2021 2022 Untitled... 2023 Untitled N... be Imperial College London EE Exercise Potential (V vs Li/Li*) The graphs on the right show two electrode materials (C-LVP and LVP) What is the gravimetric capacity of the electrodes at 1C and 10C? Which electrode has the best capacity retention at high discharge rate? Give a possible reason for the drop in performance at high C-rate What is the Coulombic efficiency of LVP in the first cycle? a C Potential (V vs Li/Li*) 4.4- LVP/CNFS 4.2 4.0 3.8 3.6 3.4 3.2 3.0 0 4.4- C-LVP/CNFS b 4.2 4.0 3.8 3.6 3.4 -0.5 C--1C 3.2 2 C5 C 3.0 0 140- 120 10 C 20 40 60 80 100 120 140 Special Capacity (mAh g 0000000000000000000000000000000 0.5 C 1C 2C g) 100- 000000000 5 C 10 C000 00000 0.5 C 0.5 C 0.5 C 80- 1 C 2 C 5 C 60- 10 C 40- o C-LVP/CNFS 20 LVP/CNFS 10 15 Cycle Number 20 25 30 Special Capacity (mAh g") -0.5 C -- 1 C 2 C 5 C 10 C 20 40 60 80 100 120 140 Special Capacity (mAh g) 9%