Page 270 - Carbon Nanotube Fibres and Yarns

260 Carbon Nanotube Fibers and Yarns

Fig. 10.7 (A) Illustration of the fabrication of a highly stretchable, threadlike SC with a
coaxial structure. (B) CV curves of the threadlike SC with increasing strains from 0% to
100%. (C) Dependence of specific capacitance on stretched cycle number with a strain
of 75%. (Reproduced with permission from Z. Yang, J. Deng, X. Chen, J. Ren and H. Peng,
Angew. Chem. Int. Ed. 52 (2013) 13453–13457.)

CNT fiber 1 H SO -PVA gel electrolyte CNT fiber 2
4
2
(A)
WSS
L
Spandex fiber
Step 1
L+∆L z Spandex fiber 500 µm
WSS Step 2 x y

L+∆L x
Step 3
z y
500 µm
L
(B) (C)
Fig. 10.8 (A) The structure of a threadlike SC and (B) the schematic of the fabrication
procedures for stretchable threadlike SCs. (C) Optical microscopy images of a straight
threadlike SC combined with a pre-strained spandex fiber and the buckled threadlike
SC with a relaxed spandex fiber. (Reproduced with permission from P. Xu, T. Gu, Z. Cao,
B. Wei, J. Yu, F. Li, J.H. Byun, W. Lu, Q. Li and T.W. Chou, Adv. Energy Mater. 4 (2014) 1300759.)