Carbon Fiber Substrates: Synthesis of P‐Doped and NiCo‐Hybridized Graphene‐Based Fibers for Flexible Asymmetrical Solid‐State Micro‐Energy Storage Device (Small 1/2019)

Abstract

In article number https://doi.org/10.1002/smll.201803469, Dan Xiao and co‐workers develop an all‐solid‐state flexible asymmetric fiber‐supercapacitor with favorable flexibility and electrochemical properties based on P‐doped graphene oxide/carbon fiber and NiCo‐based graphene oxide/carbon fiber electrodes. According to the Chinese yin‐yang balance, the optimized matching of negative (yin) and positive (yang) electrodes provides the higher output for the supercapacitor based on a double reference‐electrode system.

Flexible solid-state hybrid supercapacitors for the internet of everything (IoE)

“…8(c). 139 The individual specific capacitances of PGO/CF and NCGO electrodes represented 615 and 465 F g À1 , respectively. The assembled FSHSC with PGO/CF as the negative electrode and NCGO/CF as the positive electrode with KOH/poly(vinyl alcohol) as the electrolyte, exhibited the volumetric energy density of 36.77 mW h cm À3 at a power density of 142.5 mW cm À3 .…”

“…The various composites for flexible solid-state electrodes used in the FSHSCs are listed in Table 1. 85,[138][139][140][141][142][144][145][146][149][150][151][152]155,[159][160][161][162][163][164][165][166][167][168][169] Although different yarn-and sheet-type FSHSCs described above have expanded our portfolio of these devices for wearable devices, the interdigitated micro-structure FSHSCs will become the EES of the future miniaturized, flexible, and wearable electronic devices. These are discussed in detail in the next section.…”