Structuring electrodes <i>via</i> acoustic-field-assisted particle patterning for enhanced performance of lithium-ion batteries

Zhang, Yifan; Shahriar, M; Huang, Shan

doi:10.1039/d3ta01180a

Cited by 8 publications

(3 citation statements)

References 38 publications

(44 reference statements)

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“…However, faster capacity degradation can also be observed in the initial 50 cycles, which is probably due to the gradual failure at the lithium metal side at such a high current density (∼8 mA cm –2 ) (Figure S7). Compared with the state-of-the-art architected cathodes with areal capacities of 2.5–3.5 mAh cm –2 in the literature, the calendered BFC electrode shows good capacity retention especially at high C rates (>2C), as shown in Figure e. ,,− …”

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confidence: 91%

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Scalable Fast-Charging Aligned Battery Electrodes Enabled by Bidirectional Freeze-Casting

Ju,

Zheng,

Calderon

et al. 2023

Nano Lett.

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Over the past few years, lithium-ion batteries have been extensively adopted in electric transportation. Meanwhile, the energy density of lithium-ion battery packs has been significantly improved, thanks to the development of materials science and packing technology. Despite recent progress in electric vehicle cruise ranges, the increase in battery charging rates remains a pivotal problem in electrodes with commercial-level mass loadings. Herein, we develop a scalable strategy that incorporates bidirectional freeze-casting into the conventional tape-casting method to fabricate energy-dense, fast-charging battery electrodes with aligned structures. The vertically lamellar architectures in bidirectional freeze-cast electrodes can be roll-to-roll calendered, forming the tilted yet aligned channels. These channels enable directional pathways for efficient lithium-ion transport in electrolyte-filled pores and thus realize fast-charging capabilities. In this work, we not only provide a simple yet controllable approach for building the aligned electrode architectures for fast charging but also highlight the significance of scalability in electrode fabrication considerations.

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confidence: 91%

“…(d) Cycling stabilities at a C rate of 2C. (e) Comparison of the rate-dependent capacity retention with the state-of-the-art architected cathodes (maximum areal capacity of 2.5–3.5 mAh cm –2 ) in the literature. ,,− …”

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confidence: 99%

Scalable Fast-Charging Aligned Battery Electrodes Enabled by Bidirectional Freeze-Casting

Ju,

Zheng,

Calderon

et al. 2023

Nano Lett.

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“…In recent years, various methods have been developed to engineer the architecture of electrodes to facilitate the diffusion of lithium-ions in battery electrodes, such as magnetic templating 14,15 , phase-inversion [16][17][18][19][20][21][22][23][24][25] , channel-drilling 26,27 , freeze-casting [28][29][30][31][32][33][34][35][36] and acoustic-field modulation 37 , nanoarray engineering 38 , stamping process 39 , screen printing 40 . Among these novel manufacturing methods, phase-inversion is an outstanding approach in terms of efficiency and scalability for generating low-tortuosity structures 41 .…”

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confidence: 99%

A strategy to build high-performance thick electrodes for lithium-ion batteries with enhanced compressive modulus and regulated tortuosity in the phase-inversion process

Zhang,

Xiao,

Chen

et al. 2024

J. Mater. Chem. A

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Mesoporous N‐Doped Carbon Nanospheres as Anode Material for Sodium Ion Batteries with High Rate Capability and Superior Power Densities

Rützler,

Büttner,

Oechsler

et al. 2024

Adv Funct Materials

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Optimized sodium ion battery (SIB) carbon anodes with high stability supporting high power densities are a much‐needed material class and therefore intensively researched. The optimum graphitization degree to accommodate sodium ions, while providing high conductivity, as well as the influence of particle size distribution or pore sizes on the performance of carbon anodes, is one of the most discussed topics in this field. While a lot of studies have been published discussing these questions, the convoluted nature of these parameters, originating from material synthesis constraints, usually prevents their independent optimization. Based on Mesoporous N‐doped Carbon Nanospheres (MPNC) as model carbon material systems, the graphitization temperaturefor spherical particles with a monomodal particle size distribution (≈280 nm) and a narrow pore size distribution (≈30 nm) is optimized for faradaic sodium ion storage (plateau capacity) and electrodes with a very high power density of 2680 W kg−1 at 1000 mA g−1 and a remarkable capacity retention over 2000 cycles of 86 %, only losing 0.04 % of its specific capacity per cycle, are demonstrated.

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Structuring electrodes via acoustic-field-assisted particle patterning for enhanced performance of lithium-ion batteries

Abstract: The sluggish mass transport in current battery electrodes limits their performance, especially at high-rate cycling, and even negatively impacts the energy density. In this study, we report an acoustic-field-assisted particle...

Cited by 8 publications

References 38 publications

Scalable Fast-Charging Aligned Battery Electrodes Enabled by Bidirectional Freeze-Casting

Scalable Fast-Charging Aligned Battery Electrodes Enabled by Bidirectional Freeze-Casting

A strategy to build high-performance thick electrodes for lithium-ion batteries with enhanced compressive modulus and regulated tortuosity in the phase-inversion process

Mesoporous N‐Doped Carbon Nanospheres as Anode Material for Sodium Ion Batteries with High Rate Capability and Superior Power Densities

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