Li4Ti5O12/Ketjen Black with open conductive frameworks for high-performance lithium-ion batteries

Yang, Zhilin; Dong, Hui; Zhang, Huang; Liu, Yijun; Ji, Mandi; Xu, Yisheng; Wang, Qingqing; Luo, Lei

doi:10.1016/j.electacta.2016.03.128

Cited by 24 publications

(3 citation statements)

References 51 publications

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“…It has shown superior performance in electrochemical systems due to its high surface area and electrical conductivity. It has also recently gained attention as a conductive additive in Li-based batteries. , Ketjen black-based CBAD-spray electrodes were made the exact method as the Vulcan-based electrodes, except that the amount of solvent was changed to 150 uL/mg (binder) of NMP. The higher amount of solvent was necessary to make the Ketjen black ink viscosity similar to that of the Vulcan black-based CBAD-spray ink.…”

Section: Resultsmentioning

confidence: 99%

Self-Structured Binder Confinement of Sulfur for Highly Durable Lithium-Sulfur Batteries

Lateef,

Manjum,

McRay

et al. 2023

ACS Appl. Energy Mater.

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The lithium-sulfur battery (LSB) is a promising candidate for high-performance energy storage applications due to its high theoretical energy density and low cost. However, developing a highly durable sulfur cathode for LSBs has been challenging due to the known polysulfide shuttling and volume variation of sulfur that leads to chemical and mechanical degradation of the cathode during cycling. Sulfur confinement has become a promising solution to both issues. However, confining sulfur typically requires a complex and expensive process. Herein, we present a simple electrode processing method for producing highly durable sulfur cathodes with self-structured binder confinement for sulfur particles using only commercially available sulfur, carbon black, and binder, with no additional components. The dissolution of the binder is controlled during the slurry preparation step to form a porous binder/carbon shell structure around the sulfur particles that can entrap the soluble polysulfides and slow down the shuttling mechanism. The sulfur cathodes achieved through this method offer an outstanding capacity retention of 74% over 1000 cycles, a considerable reduction in the lithium-polysulfide shuttling and active material loss. Electrodes with a high areal loading of 7.37 mAh/cm2 (4.4 mg/cm2) also showed excellent cyclability as well as a high capacity of 800 mAh/g. The simplicity and cost-effectiveness of the presented method make it promising for the large-scale manufacturing of low-cost and durable sulfur cathodes, which pave the path to the commercialization of LSBs.

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Section: Resultsmentioning

confidence: 99%

Self-Structured Binder Confinement of Sulfur for Highly Durable Lithium-Sulfur Batteries

Lateef,

Manjum,

McRay

et al. 2023

ACS Appl. Energy Mater.

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“…The cell parameters of V 2 O 3 in the composite was calculated by Rietveld refinement method (Fig. 2b) [21,34]. Fig.…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

“…In order to get desired structure, the liquid precursors are commonly employed [32][33][34]. To date, no research work has been reported on the fabrication of V 2 O 3 and KB carbon composite and their electrochemical properties as anode materials for NIBs.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal synthesis of coherent porous V2O3/carbon nanocomposites for high-performance lithium- and sodium-ion batteries

Yang

Wang

et al. 2017

Sci. China Mater.

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.As an anode material for lithium/sodium-ion batteries, the V 2 O 3 /carbon nanocomposites exhibit higher capacity, better rate capability and cycling stability than the V 2 O 3 nanoparticle counterparts. The enhanced electrochemical performances are attributed to the porous V 2 O 3 /carbon nanocomposites, which can allow the electrolyte penetration, shorten the ion diffusion distance and improve the electronic conductivity.

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Electrolyte, Separator, Binder and Other Devices of Sodium Ion Batteries

Yi,

Jing,

Deng

et al. 2023

Sodium‐Ion Batteries

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Li4Ti5O12/Ketjen Black with open conductive frameworks for high-performance lithium-ion batteries

Cited by 24 publications

References 51 publications

Self-Structured Binder Confinement of Sulfur for Highly Durable Lithium-Sulfur Batteries

Self-Structured Binder Confinement of Sulfur for Highly Durable Lithium-Sulfur Batteries

Hydrothermal synthesis of coherent porous V2O3/carbon nanocomposites for high-performance lithium- and sodium-ion batteries

Electrolyte, Separator, Binder and Other Devices of Sodium Ion Batteries

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