Carbon Nanotube Fiber Based Stretchable Wire‐Shaped Supercapacitors

Elastomeric and Dynamic MnO2/CNT Core–Shell Structure Coiled Yarn Supercapacitor

“…18 In recent years, several strategies have been reported to incorporate stretchability into FBSs: CNT sheet nanomembranes were wound onto elastic fibers to make highly stretchable FBSs [19][20][21] or CNT fiber electrodes were attached onto prestrained elastic fibers to form a micro-buckling structure for FBSs. 22,23 Although these FBSs exhibited stable stretchability and energy storage performances, they still suffer from low electrochemical energy storage performance because the additional core fibers used as elastomeric substrates do not participate in electrochemical energy storage reactions but merely provide stretchability, resulting in low gravimetric and volumetric energy storage performances of the total devices. 24 To solve these problems, novel spring-like stretchable CNT fibers were proposed as supercapacitor electrodes.…”

“…This stretchable electrode's mechanical reversibility has not been reported among other stretchable FBSs. [19][20][21][22][23][24] In addition, the constant slopes of the loading curves exhibit high modulus from 290 ( = 20%) to 325 MPa ( = 40%), while hysteretic energy dissipations by the recovery friction force were observed during unloading. 29 The capacitance retention of the coiled supercapacitor under mechanically static strain (2% s -1 ) is characterized by comparing its CV curves before and after 37.5% strain was applied, as shown in Figure 4C.…”

A durability study of carbon nanotube fiber based stretchable electronic devices under cyclic deformation

“…Taking advantage of the "hinge-like" structure developed in the buckled fiber, Zu et al [16] developed a stretchable conductor, which showed very little variation in electric resistance under stretchingthen-releasing cycles with a maximum strain of 40%. Expanding the capability of CNT fiber based stretchability, Xu et al [17] studied a stretchable supercapacitor consisting of two undulating CNT fibers. It was observed that, after 20 mechanical stretching-releasing cycles with the maximum strain of 100%, the electromechanical properties of the supercapacitor were not degraded but rather somewhat improved.…”

Highly stretchable fiber-based single-electrode triboelectric nanogenerator for wearable devices

“…22,23 In the previous studies, most FTENGs generated electrical output from the contact between two or more strands of thread. However, it was difficult to form contact and separation between threads, and thus, they exhibited slightly low electrical outputs.…”