Free-Standing Selenium Impregnated Carbonized Leaf Cathodes for High-Performance Sodium-Selenium Batteries

Table 1 The comparison of cycling performance for the C-Se cathodes for Na-Se batteries reported in literature

Materials	Current density (A g⁻¹)	Reversible capacity (mA h g⁻¹)	References
Se@PCNFs	0.05	520 at 80th cycle	[51]
C/Se	0.1	258 at 50th cycle	[52]
Se/C	0.1695	340 at 380th cycle	[38]
Se/(CNT@MPC)	0.678	441 at 100th cycle	[53]
Se@MCNFs	0.5	430 at 300th cycle	[31]
Se@CNFs-CNT	0.5	410 at 240th cycle	[34]
CNF/Se	0.339	478 at 200th cycle	[27]
Se-MnMC-B	0.0678	535 at 150th cycle	[54]
CPAN/Se	0.203	410 at 300th cycle	[55]
Se-NCMC	0.1356	400 at 150th cycle	[24]
Se-R800A	0.1	520 at 120th cycle	This work