Sodium-ion battery technologies must have low cost, safe,
and high energy density cathode with prolonging cycle life
propositions for any commercial utilizations. The energy
storage group at NCPRE presented, for the first time an
extremely high energy density (770 Wh kg−1) and excellent
electrochemical performance cathode. The cathode
delivers a high discharge capacity of 255 mAh g−1 with 95%
capacity retention after 100 cycles at a current rate of 200
mA g−1. Furthermore, the present report demonstrates
the full-cell performance with our cathode, delivering a
high energy density of 220 Wh kg−1.
The present study shows a way to produce a high-performance rechargeable sodium-ion
battery full-cell
using alternative cathode and anode with a comparable energy density of current
lithium-ion technology.
The present study gives us a direction to make such cells for future renewable
energy storage systems.
