Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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
Electrolyte-cathode interactions in 5-V lithium-ion cells
AIT Austrian Institute of Technology, Austria.
AIT Austrian Institute of Technology, Austria.
RISE - Research Institutes of Sweden, Bioscience and Materials, Chemistry, Materials and Surfaces.
AIT Austrian Institute of Technology, Austria.
Show others and affiliations
2017 (English)In: Journal of Solid State Electrochemistry, ISSN 1432-8488, E-ISSN 1433-0768Article in journal (Refereed) In press
Abstract [en]

The electrolyte/electrode interactions on the anode side of a lithium-ion cell and the formation of the solid electrolyte interphase (SEI) have been investigated intensively in the past and are fairly well understood. Present knowledge about the reactions on the cathode side and the resulting cathode electrolyte interphase (CEI) is less detailed. In this study, the electrolyte/electrode interactions on the surface of the high-voltage cathode material LiNi0.5Mn1.5O4 (LNMO), both bare and FePO4-coated, were investigated. The gases evolving upon first time charging of the system were investigated using a GC/MS combination. The degradation products included THF, dimethyl peroxide, phosphor trifluoride, 1,3-dioxolane and dimethyl difluor silane, formed in the GC’s column as its coating reacts with HF from the experiments. Although these substances and their formation are in themselves interesting, the absence of many degradation products which have been mentioned in the existing literature is of equal interest. Our results clearly indicate that coating a cathode material can have a major influence on the amount and composition of the gaseous decomposition products in the formation phase. © 2017 The Author(s)

Place, publisher, year, edition, pages
2017.
Keyword [en]
Cathodes, Coatings, Degradation, Electrodes, Lithium-ion batteries, Solid electrolytes, Cath-ode materials, Decomposition products, Degradation products, Electrolyte cathode, High voltage cathode, LiNi0.5Mn1.5O4, Lithium-ion cells, Solid electrolyte interphase, Electrolytes
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-30818DOI: 10.1007/s10008-017-3701-5Scopus ID: 2-s2.0-85027182399OAI: oai:DiVA.org:ri-30818DiVA: diva2:1138690
Available from: 2017-09-06 Created: 2017-09-06 Last updated: 2017-09-07Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus
By organisation
Chemistry, Materials and Surfaces
In the same journal
Journal of Solid State Electrochemistry
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 5 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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
v. 2.27.0