Enhanced cycle life and capacity retention of iron oxide ultrathin film coated SnO<sub>2</sub>nanoparticles at high current densities

Palaparty, Sai Abhishek; Patel, Rajankumar L.; Liu, Xinhua

doi:10.1039/c6ra00083e

Cited by 7 publications

(4 citation statements)

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Section: Applications Of Powder Ald Coatings For Batteriesmentioning

confidence: 81%

“…(c) Effect of various thicknesses of ALD iron oxide films on discharge capacities of SnO 2 particles at 1250 mA g –1 . Adapted with permission from ref . Copyright 2016 The Royal Society of Chemistry.…”

Section: Applications Of Powder Ald Coatings For Batteriesmentioning

confidence: 99%

“…Similar large volume variation problems related to the SnO 2 anode material were addressed by Palaparty et al They applied an ultrathin, electrochemically active iron oxide (FeO x ) film on the nanoparticles using ALD. 278 SnO 2 is capable of accommodating over twice as much lithium as conventional graphite, which makes it a potential candidate for high capacity and high energy density anode material. 279 In addition to the enhanced mechanical stability of the anode, the optimum thickness of the coating synergistically contributed to attaining a far superior capacity retention of ∼89% at 55 °C after 1000 electrochemical cycles at a current density of 1250 mA g −1 , as compared with ∼33% of the UC anode (Figure 14c).…”

Section: Ohmentioning

confidence: 99%

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Powder Coatings via Atomic Layer Deposition for Batteries: A Review

et al. 2022

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Rechargeable batteries have emerged as the most promising energy storage devices in response to continually growing modern demands and are still being researched to attain higher energy densities, structural stability, and longer cycling and calendar life. Owing to the fact that battery electrodes are developed from various types of powders, incorporation of functional nanocoating of suitable materials on powder materials and/or nanosynthesis of active powder constituents have shown promising results regarding the aforementioned challenges associated with modern battery technology. Atomic layer deposition (ALD) has been demonstrated to be highly effective in fabricating inorganic films even at the subnanoscale, not only on flat surfaces but also on individual particles with high conformity, uniformity, and self-limiting growth, thus providing exceptional control over film thickness. Unlike conventional wet-chemical processes, powder ALD offers a unique opportunity to develop nano- and subnanoscale films of various compositions over a variety of substrate particles regardless of their size, morphology, and composition. Proper modifications made by powder ALD process are known to induce improvements in structural stability, electronic and ionic conductivity at the interface, and consequent charge–discharge properties of the batteries. This review comprehensively covers the main strategies and materials used over time to improve the performance of various types of batteries utilizing the powder ALD process.

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Section: Applications Of Powder Ald Coatings For Batteriesmentioning

confidence: 81%

Section: Applications Of Powder Ald Coatings For Batteriesmentioning

confidence: 99%

Section: Ohmentioning

confidence: 99%

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Powder Coatings via Atomic Layer Deposition for Batteries: A Review

et al. 2022

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“…Atomic layer deposition (ALD) has been demonstrated to be a promising technique for the enhancement of cyclic performance of Li-ion batteries. − Different from conventional coating methods, ALD can provide precise control of film thicknesses, which is extremely helpful in identifying an optimal thickness. According to our previous work, a CeO 2 ALD coating of optimal thickness successfully solved the trade-off between capacity and cyclic stability for spinel cathodes. , Surface modification of Li(Li 0.17 Ni 0.2 Co 0.05 Mn 0.58 )O 2 by CeO 2 nanoparticles was adopted in other works, but the coating was not conformal and the cyclic number and test at only room temperature were not sufficient to show significant enhancement of cyclic stability .…”

Section: Introductionmentioning

confidence: 99%

Boosting the Electrochemical Performance of Li_1.2Mn_0.54Ni_0.13Co_0.13O₂ by Atomic Layer-Deposited CeO₂ Coating

et al. 2018

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It has been demonstrated that atomic layer deposition (ALD) provides an initially safeguarding, uniform ultrathin film of controllable thickness for lithium-ion battery electrodes. In this work, CeO 2 thin films were deposited to modify the surface of lithium-rich Li 1.2 Mn 0.54 Ni 0.13 Co 0.13 O 2 (LRNMC) particles via ALD. The film thicknesses were measured by transmission electron microscopy. For electrochemical performance, ∼2.5 nm CeO 2 film, deposited by 50 ALD cycles (50Ce), was found to have the optimal thickness. At a 1 C rate and 55 °C in a voltage range of 2.0−4.8 V, an initial capacity of 199 mAh/g was achieved, which was 8% higher than that of the uncoated (UC) LRNMC particles. Also, 60.2% of the initial capacity was retained after 400 cycles of charge–discharge, compared to 22% capacity retention of UC after only 180 cycles of charge–discharge. A robust kinetic of electrochemical reaction was found on the CeO 2 -coated samples at 55 °C through electrochemical impedance spectroscopy. The conductivity of 50Ce was observed to be around 3 times higher than that of UC at 60–140 °C. The function of the CeO 2 thin-film coating was interpreted as being to increase substrate conductivity and to block the dissolution of metal ions during the charge–discharge process.

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Atomic Layer Deposition for Lithium‐Based Batteries

Nuwayhid

et al. 2016

Adv Materials Inter

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With the increasing demand for energy at a low cost and minimal environmental impact, the development of next‐generation high‐performance batteries has drawn considerable attention. Owing to the capability of forming conformal coatings of thin films and nanoparticles, atomic layer deposition (ALD) has shown great potential in deposition and surface modification of electrode materials with various nanostructures, deposition of solid‐state electrolyte, and fabrication of electrochemical catalysts. This paper reviews the recent development and applications of ALD in Li‐based batteries, especially beyond Li‐ion systems, and provides suggestions for further development of ALD techniques for these batteries.

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Enhanced cycle life and capacity retention of iron oxide ultrathin film coated SnO₂nanoparticles at high current densities

Abstract: Optimally thick and conformal iron oxide (FeOx) ultrathin films coated on SnO2 nanoparticles by atomic layer deposition significantly improve the cycle life and capacity retention when operated in a practical voltage window at high current densities.

Cited by 7 publications

References 49 publications

Powder Coatings via Atomic Layer Deposition for Batteries: A Review

Powder Coatings via Atomic Layer Deposition for Batteries: A Review

Boosting the Electrochemical Performance of Li_1.2Mn_0.54Ni_0.13Co_0.13O₂ by Atomic Layer-Deposited CeO₂ Coating

Atomic Layer Deposition for Lithium‐Based Batteries

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Enhanced cycle life and capacity retention of iron oxide ultrathin film coated SnO2nanoparticles at high current densities

Abstract: Optimally thick and conformal iron oxide (FeOx) ultrathin films coated on SnO2 nanoparticles by atomic layer deposition significantly improve the cycle life and capacity retention when operated in a practical voltage window at high current densities.

Cited by 7 publications

References 49 publications

Powder Coatings via Atomic Layer Deposition for Batteries: A Review

Powder Coatings via Atomic Layer Deposition for Batteries: A Review

Boosting the Electrochemical Performance of Li1.2Mn0.54Ni0.13Co0.13O2 by Atomic Layer-Deposited CeO2 Coating

Atomic Layer Deposition for Lithium‐Based Batteries

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Product

Resources

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Enhanced cycle life and capacity retention of iron oxide ultrathin film coated SnO₂nanoparticles at high current densities

Boosting the Electrochemical Performance of Li_1.2Mn_0.54Ni_0.13Co_0.13O₂ by Atomic Layer-Deposited CeO₂ Coating