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346 Polymer-based Nanocomposites for Energy and Environmental Applications
NIB.
a half-cell a as
50
e − 0.2 C 40 in anode nanofibers
Efficient pathway for electron transport 0.8 C 2 C 30 Cycle number SnO 2 /Sn/C carbon
e − 0.4 C 20 the of nitrogen-doped
e − 0.2 C 10 0 capability rate porous in
1000 800 600 400 200 0 (D) and encapsulated
(D)
performances, nanodots
Capacity (mAh/g)
(B) (A) Schematic representation of the sodiation/desodiation mechanism during charge/discharge, (B) schematic representation of the pathway 27;2015:6702–07.
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
