Cristin-prosjekt-ID: 686302
Sist endret: 25. november 2019, 13:20

Cristin-prosjekt-ID: 686302
Sist endret: 25. november 2019, 13:20
Prosjekt

Silicon on the road - how to make silicon-based anodes for Li-ion batteries

prosjektleder

Jan Petter Mæhlen
ved Batteriteknologi ved Institutt for energiteknikk

prosjekteier / koordinerende forskningsansvarlig enhet

  • Institutt for energiteknikk

Finansiering

  • TotalbudsjettNOK 13.475.000
  • Norges forskningsråd
    Prosjektkode: 280985

Klassifisering

Vitenskapsdisipliner

Fysikk • Kjemi • Elektrokjemi

Emneord

Lithium-ion batteri • Silisium nanopartikler • Batteriteknologi

Kategorier

Prosjektkategori

  • Anvendt forskning
  • Grunnforskning

Kontaktinformasjon

Telefon
92460895
Sted
Jan Petter Mæhlen

Tidsramme

Avsluttet
Start: 1. januar 2018 Slutt: 30. juni 2021

Beskrivelse Beskrivelse

Tittel

Silicon on the road - how to make silicon-based anodes for Li-ion batteries

Populærvitenskapelig sammendrag

Conversion of the energy landscape from fossil fuels to renewables strongly depend on the availability of cheap and reliable energy storage solutions. Rechargeable batteries represent the most appealing technology. Among those Li-ion-battery (LiB) represent the most developed technology, which delivers not only the highest energy density, but also demonstrates long-term durability and high capacity. Such properties positioned LiB technology as a primary solution for portable electronics as well as emerged electric vehicles and in-house stationary energy storage. Having a dominant position on the market LiBs technology at its present stage has almost reached its ceiling, while the modern world's activities require more energy to be stored and wider deployment. Therefore, further developments of are necessary to satisfy the rapidly growing demands of the energy storage market.
Several approaches are represented in the scientific literature and directed towards improvement of energy density of LiBs while maintaining long-term performance.  Among these solutions, the replacement of the battery anode (alternative to the currently utilized graphite) was found to be potentially the simplest and the most economical pathway for the technology improvement without major investments into manufacturing infrastructure. Silicon was found to be a material of choice for LiB anodes due to its abundancy, low price, stability and wide deployment in the semiconductor industry. Moreover, silicon has demonstrated a remarkable storage capacity for the Li ions, which could improve the battery capacity by almost an order of magnitude. However, substantial structural/morphological changes during lithiation/delithiation results in fast degradation of the batteries fabricated with Si-anodes. The primary aim of the present project is to develop a feasible strategy which will allow minimizing anode degradation and therefore increase the battery lifetime. A large effort is devoted to achieving an optimized coating of the particles that can slow down the degradation considerably.

Vitenskapelig sammendrag

Conversion of the energy landscape from fossil fuels to renewables strongly depend on the availability of cheap and reliable energy storage solutions. Rechargeable batteries represent the most appealing technology. Among those Li-ion-battery (LiB) represent the most developed technology, which delivers not only the highest energy density, but also demonstrates long-term durability and high capacity. Such properties positioned LiB technology as a primary solution for portable electronics as well as emerged electric vehicles and in-house stationary energy storage. Having a dominant position on the market LiBs technology at its present stage has almost reached its ceiling, while the modern world's activities require more energy to be stored and wider deployment. Therefore, further developments of are necessary to satisfy the rapidly growing demands of the energy storage market.
Several approaches are represented in the scientific literature and directed towards improvement of energy density of LiBs while maintaining long-term performance.  Among these solutions, the replacement of the battery anode (alternative to the currently utilized graphite) was found to be potentially the simplest and the most economical pathway for the technology improvement without major investments into manufacturing infrastructure. Silicon was found to be a material of choice for LiB anodes due to its abundancy, low price, stability and wide deployment in the semiconductor industry. Moreover, silicon has demonstrated a remarkable storage capacity for the Li ions, which could improve the battery capacity by almost an order of magnitude. However, substantial structural/morphological changes during lithiation/delithiation results in fast degradation of the batteries fabricated with Si-anodes. The primary aim of the present project is to develop a feasible strategy which will allow minimizing anode degradation and therefore increase the battery lifetime. A large effort is devoted to achieving an optimized coating of the particles that can slow down the degradation considerably.

Metode

  • Silicon is made by pyrolysis of silane
  • Coating is done through both wet synthesis and by ALD
  • Advanced structural characterisation using XPS and electron microscopy
  • Electrochemical characterisation

Utstyr

TEM, SEM, XPS, ALD, Electrochemical cells

prosjektdeltakere

prosjektleder

Jan Petter Mæhlen

  • Tilknyttet:
    Prosjektleder
    ved Batteriteknologi ved Institutt for energiteknikk

Carl Erik Lie Foss

  • Tilknyttet:
    Prosjektdeltaker
    ved Institutt for energiteknikk

Annett Thøgersen

  • Tilknyttet:
    Prosjektdeltaker
    ved Bærekraftig energiteknologi ved SINTEF AS

Ingvild Julie Thue Jensen

  • Tilknyttet:
    Lokalt ansvarlig
    ved Bærekraftig energiteknologi ved SINTEF AS

Helmer Fjellvåg

  • Tilknyttet:
    Prosjektdeltaker
    ved Uorganisk materialkjemi ved Universitetet i Oslo
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Resultater Resultater

Silicon on the Road.

Koposov, Alexey; Gandrud, Knut Bjarne; Lai, Samson Yuxiu; Jensen, Ingvild Julie Thue; Nagell, Marius Uv; Nilsen, Ola; Mæhlen, Jan Petter. 2019, NordBatt 2019. IFE, UIOPoster

Amorphous silicon nanoparticles as alternative to crystalline silicon for anodes of the next generation lithium-ion batteries.

Ulvestad, Asbjørn; Lai, Samson Yuxiu; Foss, Carl Erik Lie; Andersen, Hanne Flåten; Mæhlen, Jan Petter; Koposov, Alexey. 2019, European Research Society Meeting. IFE, UIOFaglig foredrag

Amorphous silicon nanoparticles for the next generation lithium-ion batteries.

Koposov, Alexey. 2019, Nordbatt . IFEFaglig foredrag

Silicon Nanoparticles: Size and Morphology Effects in Lithium Ion Batteries.

Lai, Samson Yuxiu; Preston, Thomas; Skare, Marte Orderud; Klette, Hallgeir; Knudsen, Kenneth Dahl; Mæhlen, Jan Petter; Koposov, Alexey. 2019, International Battery Association Meeting 2019. IFEPoster
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