Cited by 434Advancements in Battery MaterialsAdvanced Battery Technologies ResearchAdvanced Battery Materials and Technologies

Fast-charging high-energy lithium-ion batteries via implantation of amorphous silicon nanolayer in edge-plane activated graphite anodes

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Kim, Namhyung, Chae, Sujong, Ma, Jiyoung, Ko, Minseong, Cho, Jaephil·2017·Nature Communications

Abstract

As fast-charging lithium-ion batteries turn into increasingly important components in forthcoming applications, various strategies have been devoted to the development of high-rate anodes. However, despite vigorous efforts, the low initial Coulombic efficiency and poor volumetric energy density with insufficient electrode conditions remain critical challenges that have to be addressed. Herein, we demonstrate a hybrid anode via incorporation of a uniformly implanted amorphous silicon nanolayer and edge-site-activated graphite. This architecture succeeds in improving lithium ion transport and minimizing initial capacity losses even with increase in energy density. As a result, the hybrid anode exhibits an exceptional initial Coulombic efficiency (93.8%) and predominant fast-charging behavior with industrial electrode conditions. As a result, a full-cell demonstrates a higher energy density (≥1060 Wh l −1 ) without any trace of lithium plating at a harsh charging current density (10.2 mA cm −2 ) and 1.5 times faster charging than that of conventional graphite.

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Crossref · 10.1038/s41467-017-00973-y

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  • Surface coating with amorphous silicon nanolayer or doping with nanometal particles can improve initial Coulombic efficiency and Li+ diffusion kinetics.

    “Typically, surface coating with amorphous silicon nanolayer or doping with nanometal particles can improve initial Coulombic efficiency and Li + diffusion kinetics [168,169].”

    From Review on Low-Temperature Electrolytes for Lithium-Ion and Lithium Metal Batteries (2023) · cites this paper as [168]

    The Introduction and Results (pages not provided) say the amorphous Si nanolayer enables fast Li-ion diffusion, and the composite has high initial Coulombic efficiency. They attribute that efficiency chiefly to activated graphite edge sites and minimized surface area, however, not to the Si coating; they describe the remaining Ni nanoparticles as improving electrical conductivity, not as metal-particle doping that improves both claimed properties. (LLM, conf=0.86)

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2 of the 54 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. [39]Wu H Cui Y Designing nanostructured Si anodes for high energy lithium ion batteries Nano Today 2012 7 414 429 10.1016/j.nantod.2012.08.004 · DOI

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Authors
Kim, N., Chae, S., Ma, J., Ko, M., & Cho, J.
Affiliations
Ulsan National Institute of Science and Technology (KR)
Corresponding author
  • Ko, Minseong
  • Cho, Jaephil
Venue
Nature Communications
Published
2017-10-09
Volume
8
Issue
1
Pages
812-812
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2764301473
Cited by
434
References
54
Citations by year
2026: 34 · 2025: 66 · 2024: 67 · 2023: 51 · 2022: 57 · 2021: 47 · 2020: 44 · 2019: 46 · 2018: 22
FWCI
12.73
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Scholarworks@UNIST (Ulsan National Institute of Science and Technology) (submittedVersion)
Funders
Samsung
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advancements in Battery Materials
  • Physical Sciences › Engineering › Automotive Engineering › Advanced Battery Technologies Research
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Battery Materials and Technologies
Keywords
lithium-ion batteries, fast charging, graphite anode, hybrid anode, Coulombic efficiency, lithium plating, energy density, lithium ion transport

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