Breaking the limitation of sodium-ion storage for nanostructured carbon anode by engineering desolvation barrier with neat electrolytes

Zhen, Yang; Sa, Rongjian; Zhou, Kaiqiang; Ding, Ling-Yi; Yang, Chen; Mathur, Sanjay; Hong, Zhensheng

doi:10.1016/j.nanoen.2020.104895

Cited by 63 publications

(44 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This phenomenon indicates that boron substitution is favorable for the AlCl 4 − adsorption capability and trapping stability. [82][83][84] Furthermore, the possible migration pathways of Al in graphene and BG are displayed in Fig. 4f and g.…”

Section: Resultsmentioning

confidence: 99%

Boron-doping-induced defect engineering enables high performance of a graphene cathode for aluminum batteries

Zhang

Kang

et al. 2022

Inorg. Chem. Front.

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Boron-doping-induced defect engineering enables high performance of a graphene cathode for aluminum batteries

Zhang

Kang

et al. 2022

Inorg. Chem. Front.

View full text Add to dashboard Cite

show abstract

“…This result is corresponding to the previous report that carbon anode with high surface area for NIBs would get a higher ICE in ether‐based electrolytes. [ 52 ] Furthermore, CV curves at various scan rates of 0.1 to 2 mV s ‐1 are measured for quantitative analysis of surface‐dominated behavior of HPCS and CS (Figure S6, Supporting Information). The oxide peaks around 0.5 and 1.5 V and the redox peaks at 1.5 and 1.8 V, which are observed in CV curves, could be ascribed to the Na‐ion reactions with heteroatoms for such N/B‐doped porous carbon, according to previous reports.…”

Section: Resultsmentioning

confidence: 99%

“…The NVPF cathode was fabricated through the previous report and its XRD, SEM, and Na + storage property are shown in Figure S9 (Supporting Information). [ 52 ] Figure 5b shows the discharge and charge profiles of the full cell at different current rate within the window of 0.5–4.0 V, which do not present the typical battery behavior with an apparent voltage platform. Such device with slope profiles could be subscribed to the hybrid capacitor constructed by surface‐controlled capacitor electrode and intercalation‐controlled battery electrode, which can achieve a good trade‐off between power and energy density.…”

Section: Resultsmentioning

confidence: 99%

“…However, a large irreversible capacity was found in the initial cycle which could be due to the electrolyte decomposition. [ 52 ] The reversible capacity of HPCO is around 370 mAh g ‐1 , higher than the capacity of CO (197 mAh g ‐1 ). Figure S11 (Supporting Information) shows the CV curves at different scan rate from 0.1 to 1 mV s ‐1 for quantitative analysis of surface‐dominated behavior of HPCO and CO.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, ether‐based electrolytes are compatible electrolytes for nanocarbon anode of NIBs enabling very high ICE and excellent rate capability. [ 52 ] However, carbon anode for KIBs still suffer from low ICE even by using ether‐based electrolytes. This may need to be improved by surface coating strategy to inhibit serious reaction of electrolytes, [ 57 ] or finding other compatible electrolytes expired by NIBs.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Vitreum Etching‐Assisted Fabrication of Porous Hollow Carbon Architectures for Enhanced Capacitive Sodium and Potassium‐Ion Storage

Zhou

Qiu

Zhen

et al. 2021

Small

Self Cite

View full text Add to dashboard Cite

Carbonaceous materials exhibit promising application in electrochemical energy storage especially for hollow or porous structure due to the fascinating and outstanding properties. Although there has been achieved good progress, controllable synthesis of hollow or porous carbons with uniform morphology by a green and easy way is still a challenge. Herein, a new artful and green approach is designed to controllably prepare hollow porous carbon materials with the assistance of boron oxide vitreum under a relatively low temperature of 500 °C. The vitreous B2O3 provides a flowing carbonization environment and acts as etching agent accompanying with boron doping. By this general strategy, hollow and porous carbon architectures with various morphology of spheres and hollow polyhedrons are successfully fabricated by metal organic framework (MOF) precursors. Furthermore, such hollow carbon materials exhibit considerably excellent Na+/K+ storage properties through enhanced capacitive behavior due to due to the highly porous structure and large surface area. It is notable that hollow carbon spheres display nearly 90% initial Coulombic efficiency, outstanding rate capability with 130 mAh g‐1 at 30 A g‐1 and long cycling life for sodium ion storage.

show abstract

Unraveling the Mechanism of Different Kinetics Performance between Ether and Carbonate Ester Electrolytes in Hard Carbon Electrode

Zhong

et al. 2022

Adv Funct Materials

View full text Add to dashboard Cite

Ether electrolytes exhibit better rate kinetics than carbonate ester electrolytes when used in several kinds of anode materials, especially in hard carbon (HC) for sodium-ion batteries (SIBs). However, the mechanism causing the remarkable kinetics difference is still unclear. Here, a threeelectrode system is used first to eliminate the influence of polarization from the Na counter electrode. Then, there is systematic exploration from three steps of the electrode reaction process (Na + storage in HC; de-solvation; Na + migration through solid electrolyte interphase (SE), and the underlying mysteries are uncovered. For Na + storage in the bulk of the HC, it is found that two systems show the same storage mechanism and Na metallic nanoparticles will appear when discharged to 0.1 V. In addition, faster desolvation of the ether electrolyte is uncovered by three-electrode temperature-dependent EIS and solvation free energies calculation. Moreover, the difference of the SEI layers is unraveled by X-ray photoelectron spectroscopy etching, scanning electron microscopy, and differential electrochemical mass spectrometry. Most importantly, by discriminating the impacts of the SEI layers and de-solvation behavior, it can be concluded that the de-solvation process is the rate-controlling step of the electrode reaction process and is the main factor causing the kinetics differences between the two electrolytes. The research provides a clear mechanism to illuminate fast kinetics for ether electrolytes, which will promote its application in SIBs.

show abstract

Breaking the limitation of sodium-ion storage for nanostructured carbon anode by engineering desolvation barrier with neat electrolytes

Cited by 63 publications

References 64 publications

Boron-doping-induced defect engineering enables high performance of a graphene cathode for aluminum batteries

Boron-doping-induced defect engineering enables high performance of a graphene cathode for aluminum batteries

Vitreum Etching‐Assisted Fabrication of Porous Hollow Carbon Architectures for Enhanced Capacitive Sodium and Potassium‐Ion Storage

Unraveling the Mechanism of Different Kinetics Performance between Ether and Carbonate Ester Electrolytes in Hard Carbon Electrode

Contact Info

Product

Resources

About