Dual coating with AlPO4/carbon shows excellent performances and thermal stability.
5">The maximum power density was 19,707.738 W kg−1 at energy density of 16.881 Wh kg−1.
The maximum energy density was 54.015 Wh kg−1 at power density of 173.042 W kg−1.
5">The retention was 90.4% after 5000 cycles at 50 °C.