Mid Sweden University

miun.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Laser-assisted processing of nano-graphite/silicon anode materials for improved performance of Li-ion batteries
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Mathematics, and Science Education (2023-).
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Mathematics, and Science Education (2023-).ORCID iD: 0000-0003-2965-0288
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Mathematics, and Science Education (2023-).
2024 (English)In: Progress in Biomedical Optics and Imaging - Proceedings of SPIE, SPIE - The International Society for Optics and Photonics, 2024Conference paper, Published paper (Refereed)
Abstract [en]

Lithium-ion batteries are widely used today due to their high energy density, long life cycles, and low self-discharge rates. It commonly uses graphite as an anode material with a high theoretical capacity of 372mAh/g. At the same time, several research groups explore ways to further increase the energy storage capacity of lithium-ion batteries by, for example, adding silicon to the graphite anode material. Silicon is naturally abundant and inexpensive, with low environmental impact and a significantly higher theoretical specific capacity of ~4200mAh/g. A drawback is that graphite-silicon composite anode materials tend to degrade during the charge/discharge cycles, leading to decreased storage capacity over time. This degradation is associated with the size of the silicon particles, where large, micrometer-sized silicon particles are more susceptible to instability than smaller, nanometre-sized particles. To address this issue, we present an investigation using laser-assisted processing of nano-graphite-silicon composites. This process uses low-cost micrometer-sized silicon particles mixed with nano-graphite powder and a 1064 nm continuous wave laser to process the nano-graphite-silicon-coated anode material under various conditions and atmospheres (ambient and nitrogen). The performance of the lithium-ion battery is affected by different processing conditions. Specifically, the intensity of the 0.25V and 0.5V anodic peaks, which indicate the delithiation of silicon, is particularly affected, with the inclusion of an additional broader shoulder peak at around 0.3-0.35V. Our investigation suggests that laser-assisted processing of nano-graphite-silicon-composite materials is a scalable concept with the potential to improve the performance of nano-graphite-silicon anodes for lithium-ion batteries. 

Place, publisher, year, edition, pages
SPIE - The International Society for Optics and Photonics, 2024.
Keywords [en]
graphite, graphite-silicon, laser processed, laser-induced graphene, LIB, nanoparticles, porous, silicon
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:miun:diva-51256DOI: 10.1117/12.2691739Scopus ID: 2-s2.0-85190981331ISBN: 9781510670068 (electronic)OAI: oai:DiVA.org:miun-51256DiVA, id: diva2:1855379
Conference
Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Available from: 2024-04-30 Created: 2024-04-30 Last updated: 2024-12-18Bibliographically approved
In thesis
1. Optimizing laser processing for the production of advanced materials
Open this publication in new window or tab >>Optimizing laser processing for the production of advanced materials
2024 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Lasers, with their unparalleled precision and control, have become vital tools across numerous industries, offering transformative potential for the development of advanced materials. In this research, laser-assisted techniques were employed to develop and optimize functional materials for industrial and energy applications. By leveraging the unique properties of laser light, significant advancements were achieved in three key areas. First, selective laser sintering was employed to create electrically conductive polymer-graphene composites, demonstrating promising electrical conductivity, crucial for applications requiring electromagnetic compatibility. Second, rare-earth-doped nanocrystals were synthesized using ultrashort laser pulses, achieving precise control over nanoparticle size and morphology while maintaining consistent stoichiometry with the bulk material. This synthesis offers potential for applications in photonics due to the stability and tailored properties of the nanocrystal. Third, laser-assisted processing was applied to modify nanographite and nanographite-silicon composite anode materials for lithium-ion batteries. The laser-induced nanoporous structure in graphite-based anodes led to significant improvements in fast charging capabilities and specific capacity. Additionally, the optimization of silicon distribution within the nanographite matrix enhanced battery performance and cycling stability. These findings illustrate the versatility and efficacy of laser-assisted processing in tailoring material properties to meet the growing demands of advanced applications, offering a pathway to the development of next-generation materials with enhanced functionalities.

Place, publisher, year, edition, pages
Sundsvall: Mid Sweden University, 2024. p. 59
Series
Mid Sweden University licentiate thesis, ISSN 1652-8948 ; 207
Keywords
laser processing, nanoparticles, lithium-ion batteries, selective laser sintering, laser ablation in liquid, graphite anode
National Category
Materials Engineering
Identifiers
urn:nbn:se:miun:diva-53391 (URN)978-91-89786-89-9 (ISBN)
Presentation
2025-01-15, O102, Holmgatan 10, Sundsvall, 10:00 (English)
Opponent
Supervisors
Available from: 2024-12-19 Created: 2024-12-18 Last updated: 2024-12-19Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Bond, LukeAndersson, HenrikEngholm, Magnus

Search in DiVA

By author/editor
Bond, LukeAndersson, HenrikEngholm, Magnus
By organisation
Department of Engineering, Mathematics, and Science Education (2023-)
Materials Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
isbn
urn-nbn

Altmetric score

doi
isbn
urn-nbn
Total: 67 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf