Page 384 - Polymer-based Nanocomposites for Energy and Environmental Applications

Polymer-based Nanocomposites for Energy and Environmental Applications
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50
e −
Efficient pathway for electron transport
0.2 C
40
2 C
Cycle number
30
e −
0.8 C
20
0.4 C
10
0.2 C
e −
0
200
0
400
600
800
1000
(D)
performances, (A) Schematic representation of the sodiation/desodiation mechanism during charge/discharge, (B) schematic representation of the pathway NIB. a half-cell in anode SnO 2 /Sn/C the of capability rate (D) and a as nanofibers carbon nitrogen-doped porou
Capacity (mAh/g)
(B)
120 100 80 60 40 20 Coulombic efficiency (%) 0 Tin Mater
50 cycling J. Chen
insulating Na 2 O matrix 1 st desodiation 40 (C) nanofibers, L, Jiao N, Adv batteries.
1 st sodiation SnO 2 nanofibers SnO 2 /Sn@C SnO 2 /Sn@C SnO 2 nanofibers 30 20 Cycle number SnO 2 /Sn/C Zhang Y, Liu sodium-ion
CNFs
10 the in from advanced
transportation permission for
0 0 anode
SnO 2 Sn C Na x Sn Na 2 O 1200 1000 800 600 400 200 with
(A) Capacity (mAh/g) (C) electron
Fig. 12.4 for Adapted free-standing