Tuning ligament shape in dealloyed nanoporous tin and the impact of nanoscale morphology on its applications in Na-ion alloy battery anodes

Detsi, Eric; Pétrissans, Xavier; Yan, Yan; Cook, John B.; Deng, Ziling; Liang, Allen Yu-Lun; Dunn, Bruce; Tolbert, Sarah H.

doi:10.1103/physrevmaterials.2.055404

Cited by 22 publications

(28 citation statements)

References 52 publications

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“…H 2 storage and CO 2 capture), 30,35,44,45,50 biotechnology, 51 radiation resistance, 52 plasmonics, 16,[53][54][55][56][57] (photo)catalysis, 17,18,35,38,55,[58][59][60][61][62][63][64][65][66] sensing, 67,68 actuation, 8,[68][69][70][71] and energy storage and conversion. 6,9,11,12,19,21,43,47,60,[72][73][74][75] In all of these applications, the characteristic size, specific interfacial area, and curvature are critical and necessitate proper quantification.…”

Section: Introductionmentioning

confidence: 99%

“…77 While useful, this method still relies on incomplete data from electron micrographs. 5,76 (ii) Next, in terms of specific surface area, even though porosimetry techniques such as nitrogen adsorption (BET) are commonly used to determine the specific surface area of NP materials, 11,13,14 these techniques usually require a large amount of porous materials to yield reliable values. In several cases, it is not straightforward to produce a large amount of NP materials for porosimetry studies.…”

Section: Introductionmentioning

confidence: 99%

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Small-angle X-ray scattering of nanoporous materials

Welborn

Detsi

2020

Nanoscale Horiz.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Small-angle X-ray scattering of nanoporous materials

Welborn

Detsi

2020

Nanoscale Horiz.

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“…The cryomilled SnSb-C composite is mostly non-porous (0.0044 cm 3 /g porosity), and it has a gravimetric capacity of 669 mAh/g after 50 cycles at 100 mA/g. Using the density of graphite (2.2 g/cm 3 ) and fully lithiated SnSb (2.78 g/cm 3 ), the composite demonstrates a volumetric capacity − of 1842 Ah/L, which shows significant improvement compared to a graphite anode (756 Ah/L). For energy storage applications in portable electronics and electric vehicles, it is more important to compare the improvements on full cell energy density.…”

Section: Figure 5 Comparison Of the Changes In Morphologies Upon Cycling For Cryomilled And Planetary Ball Milled Snsb-c Composite Anodesmentioning

confidence: 99%

“…Qizhang Yan 1 , Shu-Ting Ko 2 , Yumin Zhao 1 , Grace Whang 3 , Andrew Dawson 4 , Sarah H. Tolbert 3,4 , Bruce S. Dunn 3 , and Jian Luo 1,2,*…”

Section: Supporting Informationmentioning

confidence: 99%

Cryogenic Milling Method to Fabricate Nanostructured Anodes

Yan

Ko²,

Zhao³

et al. 2020

ACS Appl. Energy Mater.

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Cryogenic milling was demonstrated as a new and facile method to fabricate nanostructured battery electrode materials. SnSb anode material with 1.2 wt% graphite was selected as a model system to demonstrate the feasibility and benefits of this method. Ball milling at a cryogenic temperature can suppress cold welding, exfoliate bulk graphite powder into nanoplatelets, and evenly disperse them between the grains. Aberrationcorrected scanning transmission electron microscopy and post-cycling scanning electron microscopy showed refined grain sizes and well-dispersed carbon nanoplatelets, which can stabilize the nanostructure and alleviate volume expansion and cracking upon cycling. The cryomilled SnSb-C composite anode showed a reversible volumetric capacity of 1842 Ah/L, average coulombic efficiency of 99.6 ± 0.3%, and capacity retention of 90% over 100 cycles. The cryomilled sample showed improved electrochemical performance compared to the conventional ball milled specimen. This new method of cryogenic milling can produce various other high-performance nanostructured electrode materials.

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Section: Figure 5 Comparison Of the Changes In Morphologies Upon Cycmentioning

confidence: 99%

A Cryogenic Milling Method to Fabricate Nanostructured Anodes

Yan¹,

Ko²,

Zhao³

et al. 2020

Preprint

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Cryogenic milling was demonstrated as a new and facile method to fabricate nanostructured battery electrode materials. SnSb anode material with 1.2 wt% graphite was selected as a model system to demonstrate the feasibility and benefits of this method. Ball milling at a cryogenic temperature can suppress cold welding, exfoliate bulk graphite powder into nanoplatelets, and evenly disperse them between the grains. Aberration-corrected scanning transmission electron microscopy and post-cycling scanning electron microscopy showed refined grain sizes and well-dispersed carbon nanoplatelets, which can stabilize the nanostructure and alleviate volume expansion and cracking upon cycling. The cryomilled SnSb-C composite anode showed a reversible volumetric capacity of 1842 Ah/L, average coulombic efficiency of 99.6 ± 0.3%, and capacity retention of 90% over 100 cycles. The cryomilled sample showed improved electrochemical performance compared to the conventional ball milled specimen. This new method of cryogenic milling can produce various other high-performance nanostructured electrode materials.

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Tuning ligament shape in dealloyed nanoporous tin and the impact of nanoscale morphology on its applications in Na-ion alloy battery anodes

Cited by 22 publications

References 52 publications

Small-angle X-ray scattering of nanoporous materials

Small-angle X-ray scattering of nanoporous materials

Cryogenic Milling Method to Fabricate Nanostructured Anodes

A Cryogenic Milling Method to Fabricate Nanostructured Anodes

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