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Journal of Applied Electrochemistry

, Volume 36, Issue 11, pp 1199–1206 | Cite as

The behaviour of graphite, carbon black, and Li4Ti5O12 in LiBOB-based electrolytes

  • Mario Wachtler
  • Margret Wohlfahrt-MehrensEmail author
  • Sandra Ströbele
  • Jan-Christoph Panitz
  • Ulrich Wietelmann
Article

Abstract

The film formation behaviour of lithium bis(oxalato)borate (LiBOB), a new electrolyte salt for lithium batteries, on graphite, carbon black and lithium titanate is reported. LiBOB is actively involved in the formation of the solid electrolyte interphase (SEI) at the anode. Part of this formation is an irreversible reductive reaction which takes place at potentials of around 1.75 V vs Li/Li+ and contributes to the irreversible capacity of anode materials in the first cycle. Carbon black interacts strongly with LiBOB-based electrolytes, which results in strong film formation and loss of electronic conductivity within the composite electrode. In LiBOB-based electrolytes the electrode kinetics increase in the order: carbon black  << fine particulate graphite ~ metal powder, due to decreased film formation of the conductive additive. The influence of various solvents, surfactant additives, and potential impurities was also studied.

Keywords

film formation electrolyte irreversible capacity lithium bis(oxalato)borate Lithium-ion battery 

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Mario Wachtler
    • 1
  • Margret Wohlfahrt-Mehrens
    • 1
    Email author
  • Sandra Ströbele
    • 1
  • Jan-Christoph Panitz
    • 2
  • Ulrich Wietelmann
    • 2
  1. 1.ZSW – Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-WürttembergUlmGermany
  2. 2.Chemetall GmbHFrankfurt am MainGermany

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