High-performance free-standing capacitor electrodes of multilayered Co9S8 plates wrapped by carbonized poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)/reduced graphene oxide

Yao, Tinghui; Li, Yali; Liu, Dequan; Gu, Yipeng; Qin, Shengchun; Guo, Xin; Guo, Hui; Ding, Yongqiang; Liu, Qiming; Chen, Qiang; Li, Junshuai; He, Dawei

doi:10.1016/j.jpowsour.2018.01.039

Cited by 63 publications

(17 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, the demand for smart energy storage devices is on a rapid rise as portable electronic devices and electric vehicles become more and more popular . Among the related devices, lithium (Li) ion batteries (LIBs) dominate the market, owing to their high energy density and matured manufacturing technology .…”

Section: Introductionmentioning

confidence: 99%

A Dual Carbon‐Based Potassium Dual Ion Battery with Robust Comprehensive Performance

Zhu

Yang

et al. 2018

Small

Self Cite

124

View full text Add to dashboard Cite

Dual carbon-based potassium dual ion batteries (K-DCBs) have recently attracted ever-increasing attention owing to the potential advantages of high performance-to-cost ratio, good safety, and environmental friendliness. However, the reported K-DCBs still cannot simultaneously meet the requirements of high capacity, long cycling stability, and low cost, which are necessary for practical applications. In this study, a K-DCB with good comprehensive performance including capacity, cycling stability, medium discharge voltage, and energy density is developed by introducing the optimal cathode and anode materials, i.e., KS6 and natural graphite, respectively. An initial capacity of ≈54.6 mAh g and 92.5% capacity retention after 400 cycles can be delivered in a wide voltage window of 2.4-5.4 V at the current density of 100 mA g . A high medium discharge voltage around 4.2 V and an energy density up to 158.3 Wh kg are meanwhile delivered by the K-DCB. In addition, the working mechanism of the devices is understood in detail. It is believed that valuable contributions to the electrochemical performance improvement of the related devices toward practical applications can be provided by this study.

show abstract

Section: Introductionmentioning

confidence: 99%

A Dual Carbon‐Based Potassium Dual Ion Battery with Robust Comprehensive Performance

Zhu

Yang

et al. 2018

Small

Self Cite

124

View full text Add to dashboard Cite

show abstract

“…The Nyquist plots exhibited in Figure f indicate that T−Ti 3 C 2 can evidently reduce the charge‐transfer resistance, as demonstrated by the reduced radius of the semicircles for the electrochemical impedance spectroscopy (EIS) curves of T−Ti 3 C 2 and TiO 2 /T−Ti 3 C 2 at high frequency (see the top inset of Figure f). Moreover, the smaller values for the intersection of the EIS curves with the Z′ axis demonstrate the reduced equivalent series resistance after introducing T−Ti 3 C 2 (see the bottom inset of Figure f) . Accordingly, good electrochemical behaviors especially at a high current density can be expected for the TiO 2 /T−Ti 3 C 2 composite.…”

Section: Resultsmentioning

confidence: 96%

TiO₂ Nanoparticles In Situ Formed on Ti₃C₂ Nanosheets by a One‐Step Ethanol‐Thermal Method for Enhanced Reversible Lithium‐Ion Storage

Lin

et al. 2020

ChemistrySelect

Self Cite

View full text Add to dashboard Cite

MXenes, a family of two‐dimensional (2D) carbides, nitrides and carbonitrides, have been considered as promising anode materials for lithium‐ion (Li+) batteries due to their good flexibility and conductivity. Herein, we report a one‐step ethanol‐thermal method to form titanium dioxide (TiO2) nanoparticles on the surface of Ti3C2 nanosheets with less oxidation and high 2D structural integrity, and meanwhile investigate the properties of reversible Li+ storage. It indicates that a reversible specific capacity of 257.3 mAh g−1 at the current density of 50 mA g−1 can be delivered. Moreover, the specific capacity of 141.4 mAh g−1 with the coulombic efficiency of ∼100 % can be obtained even after 250 cycles at the current density as high as 1 A g−1. The improved capacity can be attributed to the synergetic effect that prevents stacking of the Ti3C2 nanosheets by the surface‐anchored TiO2 nanoparticles and meanwhile avoids agglomerating of TiO2 nanoparticles due to the existence of Ti3C2 nanosheets.

show abstract

“…Ragone plot (Figure 6b) of ASC PVA/PEDOT//rGO can deliver reasonably high specific energy of 21.25 Wh·kg −1 at a specific power of 335.51 W·kg −1 . Interestingly, the superior specific energy of ASC surpasses other PEDOT-based electrodes [4,27,[40][41][42]. This remarkable supercapacitor behavior is due to the high specific capacitance obtained from the discharged time and extended potential window [43].…”

Section: Electrochemical Characterizationsmentioning

confidence: 95%

Facile Electrodeposition of Poly(3,4-ethylenedioxythiophene) on Poly(vinyl alcohol) Nanofibers as the Positive Electrode for High-Performance Asymmetric Supercapacitor

2019

View full text Add to dashboard Cite

Poly(vinyl alcohol)/poly(3,4-ethylenedioxythiophene) (PVA/PEDOT) nanofibers were synthesized as a positive electrode for high-performance asymmetric supercapacitor (ASC). PVA/PEDOT nanofibers were prepared through electrospinning and electrodeposition meanwhile reduced graphene oxide (rGO) was obtained by electrochemical reduction. The PVA/PEDOT nanofibers demonstrated cauliflower-like morphology showing that PEDOT was uniformly coated on the smooth cross-linking structure of PVA nanofibers. In addition, the ASC showed a remarkable energy output efficiency by delivering specific energy of 21.45 Wh·kg−1 at a specific power of 335.50 W·kg−1 with good cyclability performance (83% capacitance retained) after 5000 CV cycles. The outstanding supercapacitive performance is contributed from the synergistic effects of both PVA/PEDOT//rGO, which gives promising materials for designing high-performance supercapacitor applications.

show abstract

High-performance free-standing capacitor electrodes of multilayered Co9S8 plates wrapped by carbonized poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)/reduced graphene oxide

Cited by 63 publications

References 51 publications

A Dual Carbon‐Based Potassium Dual Ion Battery with Robust Comprehensive Performance

A Dual Carbon‐Based Potassium Dual Ion Battery with Robust Comprehensive Performance

TiO₂ Nanoparticles In Situ Formed on Ti₃C₂ Nanosheets by a One‐Step Ethanol‐Thermal Method for Enhanced Reversible Lithium‐Ion Storage

Facile Electrodeposition of Poly(3,4-ethylenedioxythiophene) on Poly(vinyl alcohol) Nanofibers as the Positive Electrode for High-Performance Asymmetric Supercapacitor

Contact Info

Product

Resources

About

High-performance free-standing capacitor electrodes of multilayered Co9S8 plates wrapped by carbonized poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)/reduced graphene oxide

Cited by 63 publications

References 51 publications

A Dual Carbon‐Based Potassium Dual Ion Battery with Robust Comprehensive Performance

A Dual Carbon‐Based Potassium Dual Ion Battery with Robust Comprehensive Performance

TiO2 Nanoparticles In Situ Formed on Ti3C2 Nanosheets by a One‐Step Ethanol‐Thermal Method for Enhanced Reversible Lithium‐Ion Storage

Facile Electrodeposition of Poly(3,4-ethylenedioxythiophene) on Poly(vinyl alcohol) Nanofibers as the Positive Electrode for High-Performance Asymmetric Supercapacitor

Contact Info

Product

Resources

About

TiO₂ Nanoparticles In Situ Formed on Ti₃C₂ Nanosheets by a One‐Step Ethanol‐Thermal Method for Enhanced Reversible Lithium‐Ion Storage