Journal article Open Access

Temperature-dependent cycling performance and ageing mechanisms of C6/ LiNi1/3Mn1/3Co1/3O2 batteries

Dongjiang Li; Hu Li; Dmitri Danilov; Lu Gao; Jiang Zhou; Rüdiger-A. Eichel; Yong Yang; Peter H. L. Notten


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{
  "description": "<p>Ageing mechanisms of NMC-based Li-ion (C6/LiNi1/3Mn1/3Co1/3O2) batteries have been investigated under various cycling conditions. The electromotive force (EMF) curves are regularly determined by mathematical extrapolation of voltage discharge curves. The irreversible capacity losses determined from the EMF curves have been investigated as a function of time and cycle number. Parasitic side reactions, occurring at the cathode and anode, are considered to be responsible for charge-discharge efficiency (CDE) and discharge-charge efficiency (DCE), respectively. The recently developed non-destructive voltage analysis method is also applied to the present battery chemistry. The decline of the second plateau of the \u3016dV\u3017_EMF/dQ curves upon cycling is considered to be an indicator of graphite degradation whereas the development of the third peak in these derivative curves is considered to be an indicator for electrode voltage slippage. XPS measurements confirm the deposition of transition-metal elements at the graphite electrode, indicating dissolution of these metals from the cathode. Furthermore, XPS analyses confirm the existence of a Cathode-Electrolyte-Interface (CEI) layer. The outer CEI layer is composed of various compounds, such as carbonate-related Li salts, LiF and NiF2, etc., while the inner CEI layer is dominantly composed of fluoride-related compounds, such as NiF2. Finally, a cathode degradation model including transition-metal dissolution and structure transformation is proposed.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Forschungszentrum J\u00fclich, Fundamental Electrochemistry (IEK-9), D-52425 J\u00fclich, Germany", 
      "@type": "Person", 
      "name": "Dongjiang Li"
    }, 
    {
      "affiliation": "Forschungszentrum J\u00fclich, Fundamental Electrochemistry (IEK-9), D-52425 J\u00fclich, Germany", 
      "@type": "Person", 
      "name": "Hu Li"
    }, 
    {
      "affiliation": "Forschungszentrum J\u00fclich, Fundamental Electrochemistry (IEK-9), D-52425 J\u00fclich, Germany", 
      "@type": "Person", 
      "name": "Dmitri Danilov"
    }, 
    {
      "affiliation": "Forschungszentrum J\u00fclich, Fundamental Electrochemistry (IEK-9), D-52425 J\u00fclich, Germany", 
      "@type": "Person", 
      "name": "Lu Gao"
    }, 
    {
      "affiliation": "Forschungszentrum J\u00fclich, Fundamental Electrochemistry (IEK-9), D-52425 J\u00fclich, Germany", 
      "@type": "Person", 
      "name": "Jiang Zhou"
    }, 
    {
      "affiliation": "Forschungszentrum J\u00fclich, Fundamental Electrochemistry (IEK-9), D-52425 J\u00fclich, Germany", 
      "@type": "Person", 
      "name": "R\u00fcdiger-A. Eichel"
    }, 
    {
      "affiliation": "Forschungszentrum J\u00fclich, Fundamental Electrochemistry (IEK-9), D-52425 J\u00fclich, Germany", 
      "@type": "Person", 
      "name": "Yong\u00a0Yang"
    }, 
    {
      "affiliation": "Forschungszentrum J\u00fclich, Fundamental Electrochemistry (IEK-9), D-52425 J\u00fclich, Germany", 
      "@type": "Person", 
      "name": "Peter H. L. Notten"
    }
  ], 
  "headline": "Temperature-dependent cycling performance and ageing mechanisms of C6/ LiNi1/3Mn1/3Co1/3O2 batteries", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2018-06-08", 
  "url": "https://zenodo.org/record/1473590", 
  "keywords": [
    "Layered-oxid Cathode materials; Solid-Electrolyte-Interface; Cathode-Electrolyte-Interface; Capacity loss; Electromotive force; Derivative voltage analysis"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.1016/j.jpowsour.2018.06.035", 
  "@id": "https://doi.org/10.1016/j.jpowsour.2018.06.035", 
  "@type": "ScholarlyArticle", 
  "name": "Temperature-dependent cycling performance and ageing mechanisms of C6/ LiNi1/3Mn1/3Co1/3O2 batteries"
}
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