Urea-modified candle soot for enhanced anodic performance for fast-charging lithium-ion battery application

Gangadharan, Ananya; Mamidi, Suresh; Sharma, Chandra Shekhar; Rao, Tata N.

doi:10.1016/j.mtcomm.2020.100926

Cited by 15 publications

(14 citation statements)

References 41 publications

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“…At present, lithium-ion batteries have been widely used in various electronic products, electric/hybrid vehicles, and fixed energy storage systems [1][2][3][4]. However, the toxic organic liquid electrolytes commonly employed in traditional lithium-ion batteries have many shortcomings, such as undesirable inflammability, easy decomposition at high temperatures, rapid solidification at low temperatures, and fast leakage [5].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Properties of an Sn-Doped LATP Ceramic Electrolyte and Its Derived Sandwich-Structured Composite Solid Electrolyte

Wang

Yao

et al. 2022

Nanomaterials

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An Li1.3Al0.3SnxTi1.7−x(PO4)3 (LATP-xSn) ceramic solid electrolyte was prepared by Sn doping via a solid phase method. The results showed that adding an Sn dopant with a larger ionic radius in a concentration of x = 0.35 enabled one to equivalently substitute Ti sites in the LATP crystal structure to the maximum extent. The uniform Sn doping could produce a stable LATP structure with small grain size and improved relative density. The lattice distortion induced by Sn doping also modified the transport channels of Li ions, which promoted the increase of ionic conductivity from 5.05 × 10−5 to 4.71 × 10−4 S/cm at room temperature. The SPE/LATP-0.35Sn/SPE composite solid electrolyte with a sandwich structure was prepared by coating, which had a high ionic conductivity of 5.9 × 10−5 S/cm at room temperature, a wide electrochemical window of 4.66 V vs. Li/Li+, and a good lithium-ion migration number of 0.38. The Li||Li symmetric battery test results revealed that the composite solid electrolyte could stably perform for 500 h at 60 °C under the current density of 0.2 mA/cm2, indicating its good interface stability with metallic lithium. Moreover, the analysis of the all-solid-state LiFePO4||SPE/LATP-0.35Sn/SPE||Li battery showed that the composite solid electrolyte had good cycling stability and rate performance. Under the conditions of 60 °C and 0.2 C, stable accumulation up to 200 cycles was achieved at a capacity retention ratio of 90.5% and a coulombic efficiency of about 100% after cycling test.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Properties of an Sn-Doped LATP Ceramic Electrolyte and Its Derived Sandwich-Structured Composite Solid Electrolyte

Wang

Yao

et al. 2022

Nanomaterials

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“…Indeed, flame synthesis is considered as one of the most inexpensive techniques to yield soot derived carbon nanoparticles. 30 For these reasons, soot derived from a simple flame synthesis of candle wax, has been used for energy Please do not adjust margins Please do not adjust margins storage. 23,28 The average size of soot nanoparticles is in the range of 30-50 nm, 30 and they possess some degree of crystallinity.…”

Section: Introductionmentioning

confidence: 99%

“…30 For these reasons, soot derived from a simple flame synthesis of candle wax, has been used for energy Please do not adjust margins Please do not adjust margins storage. 23,28 The average size of soot nanoparticles is in the range of 30-50 nm, 30 and they possess some degree of crystallinity. To our knowledge, only Kanakaraj et al, has explored the use of soot nanoparticles for SIBs applications 29,31 .…”

Section: Introductionmentioning

confidence: 99%

Hierarchical soot nanoparticle self-assemblies for enhanced performance as sodium-ion battery anodes

Cui

Subramaniyam

et al. 2022

J. Mater. Chem. A

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“…The major challenges are to increase the energy density and power density of LIBs to extend their application to hybrid electric vehicles. Efforts are made in this direction through nanostructuring of the electrode materials, resulting in an increased active electrode surface area and improved Li-ion diffusion kinetics. − In commercial LIBs, graphite is used as an anode material owing to its excellent cycling stability and low cost. However, graphite failed to meet the challenges of high energy and power densities.…”

Section: Introductionmentioning

confidence: 99%

A Three-Dimensional Hybrid Carbon-Microelectromechanical System on a Graphite-Coated Stainless Steel Substrate as a High-Performance Anode for Lithium-Ion Batteries

Mamidi

Gangadharan

Pathak

et al. 2020

ACS Appl. Energy Mater.

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Three-dimensional (3D) microbatteries provide higher capacities owing to their additional volume when compared to a thin-film electrode configuration. Here for the first time, we report a carbon-microelectromechanical system approach to fabricate 3D carbon microelectrode arrays on a graphite-coated stainless steel (SS) current collector. A thin layer of graphite coating on SS wafer through pencil tracing at the base of the 3D micropillars not only provides an efficient conducting path but also significantly improves the cycle life and reversible storage capability by eliminating detrimental side reactions. The as-fabricated 3D hybrid carbon microelectrode arrays delivered significantly higher reversible capacities of 920 and 624 mAh g −1 at current densities of 37.2 and 500 mA g −1 , respectively. A detailed investigation is carried out to demonstrate the advantage of graphite coating on the base while comparing the performance of 3D carbon electrodes on the bare SS. Excellent cycling stability with >99% capacity retention even after 100 cycles of galvanostatic charge−discharge confirms the commercial feasibility of such 3D hybrid carbon microelectrode arrays for high-performance Li-ion batteries. Furthermore, the dimensional stability of the 3D hybrid carbon microelectrodes is confirmed by the postcycle analysis after 100 cycles. In addition, a diffusion-limited model utilizing the finite element method is deployed to estimate time-dependent Li-ion transport across the hybrid microelectrodes, which reveals that the Li-ion diffusion is substantially improved when compared to that in conventional commercial planar electrodes.

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Urea-modified candle soot for enhanced anodic performance for fast-charging lithium-ion battery application

Cited by 15 publications

References 41 publications

Electrochemical Properties of an Sn-Doped LATP Ceramic Electrolyte and Its Derived Sandwich-Structured Composite Solid Electrolyte

Electrochemical Properties of an Sn-Doped LATP Ceramic Electrolyte and Its Derived Sandwich-Structured Composite Solid Electrolyte

Hierarchical soot nanoparticle self-assemblies for enhanced performance as sodium-ion battery anodes

A Three-Dimensional Hybrid Carbon-Microelectromechanical System on a Graphite-Coated Stainless Steel Substrate as a High-Performance Anode for Lithium-Ion Batteries

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