Enhanced lithium storage performance of porous exfoliated carbon fibers via anchored nickel nanoparticles

Abstract

Herein, flexible carbon fiber cloth (CFC) is modified by embedding Ni nanoparticles via a thermal reduction strategy, and it is used as a suitable anode material for lithium-ion batteries.

Asymmetric Pseudocapacitors Based on Interfacial Engineering of Vanadium Nitride Hybrids

“…Moreover, based on the electrochemical impedance spectroscopy (EIS) results, the Nyquist plots show that the charge transfer resistance, R ct (i.e., the semi-circle at the low-frequency region) of the hybrid and pristine VN samples are almost the same, indicating that the integration of MoS 2 may not necessarily enhance the hybrid electrode conductivity ( Figure S10c ). However, the Warburg resistance ( W s ) that is related to the diffusion of ions in VN/MoS 2 cells is closer to 90° than the VN and MoS 2 cells at a higher frequency region ( Figure S10b ) [ 49 , 64 ]. Such favorable ion diffusion in VN/MoS 2 can be related to MoS 2 incorporation that possesses the ability to facilitate diffusion of Li ions during electrochemical processes [ 45 ].…”

Adsorption energy engineering of nickel oxide hybrid nanosheets for high areal capacity flexible lithium-ion batteries

“…Further analysis upon intercalation of Li-ion into the CF and CF/ECF below 0.5 V are studied using 1 st and 2 nd discharge processes because Li-ion are usually intercalated into CF matrix below 0.5 V [36][37][38][39]. The loss in the capacity contribution of carbon fiber current collectors (denoted as QC 1st -QC 2nd ) in CF/NiO is 0.58 mAh cm -2 (Figure 2b), which reduces to 0.42 mAh cm -2 in CF/ECF/NiO (Figure 2d) and 0.40 mAh cm -2 in CF/ECF/NiO/CD (Figure 2f) indicating the CF/ECF is highly resistant to losing much capacity upon SEI layer formation [22,28,40] As it is well known that most TMOs exhibits poor conductivity and stability [6,41],…”

Superstructured α-Fe2O3 nanorods as novel binder-free anodes for high-performing fiber-shaped Ni/Fe battery

“…Benefiting from the progress of human civilization, the quality of people's life has been greatly improved, hence portable and wearable electronic devices have been incorporated into our life [1][2][3][4][5][6][7][8][9][10][11][12][13]. In the field of energy storage devices, there is a growing demand for high power density and energy density, long cycle lifetime, safety, cost saving, environmental friendly and fast charge/ discharge rate, as well as the advantages of remarkable weavability and superior flexibility [3,[14][15][16][17][18]. Particularly, fiber-shaped energy storage devices (FESDs) have great potential due to the miniature volume, excellent flexibility and textile property [15,[19][20][21][22][23].…”