Niobium-Based High Rate Electrodes for Lithium-Ion Batteries: From Materials Design to Electrochemical Origins

Rui Xia

Research output: ThesisPhD Thesis - Research UT, graduation UT

211 Downloads (Pure)

Abstract

This thesis contains two parts, namely (1) the structural design of niobium-based oxides for fast-charging battery applications and (2) the investigation of different influences ranging from the intrinsic material properties to the diffusion behavior of the lithium-ions into these niobium-based materials. The first part includes the investigation on three novel niobium based fast charging electrode materials, niobium tungsten oxide, nickel niobium oxide, niobium tungsten oxide 2D glass micro-electrode on conductive substrate. The second part contains a new theoretical framework for decoupling the influences of ohmic resistance, reaction rate, and ion diffusion to the fast-charging properties of the electrode materials. And this model was used to study the electrochemical origins of the fast charging performance of the niobium-based electrode materials.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • ten Elshof, Johan Evert, Supervisor
  • Huijben, Mark, Supervisor
Award date5 Oct 2022
Place of PublicationEnschede
Publisher
Print ISBNs978-90-365-5446-6
Electronic ISBNs978-90-365-5446-6
DOIs
Publication statusPublished - 5 Oct 2022

Keywords

  • battery anode
  • fast charging
  • Niobium
  • 2D glass
  • Electrochemistry

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