Carbon Nanofiber/3D Nanoporous Silicon Hybrids as High Capacity Lithium Storage Materials

Park, Hyeong-Il; Sohn, Myungbeom; Kim, Dae Sik; Park, Cheol-Ho; Choi, Jeong‐Hee; Kim, Hansu

doi:10.1002/cssc.201501633

Cited by 22 publications

(13 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…17,30,31 Material Characterizations. Si-Ti-Fe-Al alloy buttons were fabricated by arc melting on a copper hearth using a nonconsumable tungsten electrode in an argon atmosphere.…”

Section: Methodsmentioning

confidence: 99%

Real‐Time Dilation Observation of Si‐Alloy Electrode Using Thermally Treated Poly (Amide‐Imide) as a Binder for Lithium Ion Battery

Park

Lee

Chung

et al. 2019

Bulletin Korean Chem Soc

Self Cite

View full text Add to dashboard Cite

Real time dilation behaviors of a Si-Ti-Fe-Al alloy electrode adopting a poly (amide-imide) binder were investigated to understand the effects of thermal treatment temperature for PAI binder on the electrochemical performance of the Si-alloy electrode using an in-situ electrochemical dilatometer. In situ measurement of the electrode thickness showed that the changes in the volume of the Si electrode was suppressed by heat treatment greater than 300 C, which well agreed with the improved cycle performance of the Sialloy electrode thermally treated at the same temperature. Differential dilation plots of the Si-alloy electrodes were found to reveal more detailed changes in the volume of the Si-alloy electrode, thus showing that the enhanced mechanical strength of thermally treated PAI effectively could control the expansion and contraction of the Si-alloy electrode and ensuring a more stable cycle performance of the Si-alloy electrode.

show abstract

“…17,30,31 Material Characterizations. Si-Ti-Fe-Al alloy buttons were fabricated by arc melting on a copper hearth using a nonconsumable tungsten electrode in an argon atmosphere.…”

Section: Methodsmentioning

confidence: 99%

Real‐Time Dilation Observation of Si‐Alloy Electrode Using Thermally Treated Poly (Amide‐Imide) as a Binder for Lithium Ion Battery

Park

Lee

Chung

et al. 2019

Bulletin Korean Chem Soc

Self Cite

View full text Add to dashboard Cite

show abstract

“…[6][7][8] Thus, the formationo fn ovel materials at the nanoscale level considerably enhancer echargeableb atteries with ah igh specific capacity,g ood rate capability,a nd long life. Nanostructured electrode materials may shorten the transport lengths for electrons and ions, improve effective active sites, and control volumer eduction.…”

Section: Introductionmentioning

confidence: 99%

“…Nanostructured electrode materials may shorten the transport lengths for electrons and ions, improve effective active sites, and control volumer eduction. [6][7][8] Thus, the formationo fn ovel materials at the nanoscale level considerably enhancer echargeableb atteries with ah igh specific capacity,g ood rate capability,a nd long life. It is assumed that we can further revolutionize battery systems by synthesizing innovative materials throught he field of nanochemistry.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress on Molybdenum Oxides for Rechargeable Batteries

et al. 2019

View full text Add to dashboard Cite

bility during the reaction, andl ow electronic conductivity (ca. 10 À5 Scm À1 ). [28,29] Reduced molybdenum oxides,i ncluding MoO 2 and MoO x (2 < x < 3), with intrinsic oxygen vacancies, comparedwith pure MoO 3 ,can greatly increase the conductivity,a nd have been studied as attractive electrode materials. [30,31] Unfortunately,a s-fabricated batteries based on MoO 2 or MoO x electrodes still suffer from poor cycling stability and low recharge efficiency.T herefore, much effort has been invested over the past few years to pursuet he high energy efficiency, high cycling stability,a nd prominentr ate capability of molybdenum oxide-based electrodes for rechargeable batteries.Herein, we presentabrief summary of recent progress in the use of molybdenum oxides, including MoO 3 and MoO 2 ,a s well their composites, as electrodes for rechargeable batteries, such as LIBs, SIBs, Li-S batteries, Li-O 2 batteries, and other novel battery systems. The charge-storage mechanisms, fabrication of the electrode structures, and electrochemical performances, combined with their relationships, are mainlyd iscussed. This Minireview focuseso nc urrently developed strategies to improvet he energy-storage performances of the electrodes, through morphology modification,d efect engineering, and synergistic effects of hybrid electrodes, and thus, to optimize the electrochemical properties of the batteries. Finally, perspectives on MoO 3 -a nd MoO 2 -based compounds for the future development of rechargeable batteries are also presented.

show abstract

“…The result is producing alternate structure of metal‐and‐gap with an average metal ligament diameter (or pore diameter) as small as 3 nm . Dealloying technology has been widely used in the field of batteries, chemical sensors, capacitor and catalysis because of its simple and efficient production process. In this work, we present the morphology‐controllable synthesis and electrochemical property of Si x Sb alloy possessing nanoporous structure by the chemical dealloying of Al‐Si‐Sb alloy ribbon.…”

Section: Introductionmentioning

confidence: 99%

Structure‐Controllable Binary Nanoporous‐Silicon/Antimony Alloy as Anode for High‐Performance Lithium‐Ion Batteries

et al. 2018

View full text Add to dashboard Cite

A binary nanoporous‐SixSb alloy is prepared successfully as electrode for lithium‐ion batteries (LIBs) by a one‐step chemical dealloying method. The sample morphology can be controlled by adjusting the content of Al and the molar ratio of Si and Sb in the alloy precursors. Structural and morphological characterizations reveal the presence of uniformly‐distributed nanopores which can effectively accommodate the volume change and provide massive diffusion channels for Li‐ions during charging/discharging. Electrochemical experiments show that the nanoporous Si15Sb15 (np‐Si15Sb15) anode can deliver excellent performance with a specific capacity of 647.40 mAh g−1 after 90 cycles at a current density of 100 mA g−1. This simple approach may be further extended to the design of novel nanoporous materials, providing a guideline for mass production of high‐performance electrochemical energy storage devices.

show abstract

Carbon Nanofiber/3D Nanoporous Silicon Hybrids as High Capacity Lithium Storage Materials

Cited by 22 publications

References 50 publications

Real‐Time Dilation Observation of Si‐Alloy Electrode Using Thermally Treated Poly (Amide‐Imide) as a Binder for Lithium Ion Battery

Real‐Time Dilation Observation of Si‐Alloy Electrode Using Thermally Treated Poly (Amide‐Imide) as a Binder for Lithium Ion Battery

Recent Progress on Molybdenum Oxides for Rechargeable Batteries

Structure‐Controllable Binary Nanoporous‐Silicon/Antimony Alloy as Anode for High‐Performance Lithium‐Ion Batteries

Contact Info

Product

Resources

About