Bulk-nanoporous-silicon negative electrode with extremely high cyclability for lithium-ion batteries prepared using a top-down process

Takeshi Wada; Tetsu Ichitsubo; Kunio Yubuta; Haruhiko Segawa; Hirokazu Yoshida; Hidemi Kato

doi:10.1021/nl501500g

Bulk-nanoporous-silicon negative electrode with extremely high cyclability for lithium-ion batteries prepared using a top-down process

Takeshi Wada, Tetsu Ichitsubo, Kunio Yubuta, Haruhiko Segawa, Hirokazu Yoshida, Hidemi Kato

Research output: Contribution to journal › Article › peer-review

185 Citations (Scopus)

Abstract

We synthesized freestanding bulk three-dimensional nanoporous Si using dealloying in a metallic melt, a top-down process. Using this nanoporous Si, we fabricated negative electrodes with high lithium capacity, nearing their theoretical limits, and greatly extended cycle lifetimes, considerably improving the battery performance compared with those using electrodes made from silicon nanoparticles. By operating the electrodes below the accommodation volume limit of their pores, we prolonged their cycle lifetime.

Original language	English
Pages (from-to)	4505-4510
Number of pages	6
Journal	Nano Letters
Volume	14
Issue number	8
DOIs	https://doi.org/10.1021/nl501500g
Publication status	Published - 2014 Aug 13

Keywords

dealloying
lithium-ion battery
nanoporous structure
negative electrode
silicon

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/nl501500g

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title = "Bulk-nanoporous-silicon negative electrode with extremely high cyclability for lithium-ion batteries prepared using a top-down process",

abstract = "We synthesized freestanding bulk three-dimensional nanoporous Si using dealloying in a metallic melt, a top-down process. Using this nanoporous Si, we fabricated negative electrodes with high lithium capacity, nearing their theoretical limits, and greatly extended cycle lifetimes, considerably improving the battery performance compared with those using electrodes made from silicon nanoparticles. By operating the electrodes below the accommodation volume limit of their pores, we prolonged their cycle lifetime.",

keywords = "dealloying, lithium-ion battery, nanoporous structure, negative electrode, silicon",

author = "Takeshi Wada and Tetsu Ichitsubo and Kunio Yubuta and Haruhiko Segawa and Hirokazu Yoshida and Hidemi Kato",

year = "2014",

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doi = "10.1021/nl501500g",

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T1 - Bulk-nanoporous-silicon negative electrode with extremely high cyclability for lithium-ion batteries prepared using a top-down process

AU - Wada, Takeshi

AU - Ichitsubo, Tetsu

AU - Yubuta, Kunio

AU - Segawa, Haruhiko

AU - Yoshida, Hirokazu

AU - Kato, Hidemi

PY - 2014/8/13

Y1 - 2014/8/13

N2 - We synthesized freestanding bulk three-dimensional nanoporous Si using dealloying in a metallic melt, a top-down process. Using this nanoporous Si, we fabricated negative electrodes with high lithium capacity, nearing their theoretical limits, and greatly extended cycle lifetimes, considerably improving the battery performance compared with those using electrodes made from silicon nanoparticles. By operating the electrodes below the accommodation volume limit of their pores, we prolonged their cycle lifetime.

AB - We synthesized freestanding bulk three-dimensional nanoporous Si using dealloying in a metallic melt, a top-down process. Using this nanoporous Si, we fabricated negative electrodes with high lithium capacity, nearing their theoretical limits, and greatly extended cycle lifetimes, considerably improving the battery performance compared with those using electrodes made from silicon nanoparticles. By operating the electrodes below the accommodation volume limit of their pores, we prolonged their cycle lifetime.

KW - dealloying

KW - lithium-ion battery

KW - nanoporous structure

KW - negative electrode

KW - silicon

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JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 8

ER -

Bulk-nanoporous-silicon negative electrode with extremely high cyclability for lithium-ion batteries prepared using a top-down process

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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