1 Ocak 2021 Dergi makalesi Açık Erişim

Demiryurek, Ridvan; Gurbuz, Nergiz; Hatipoglu, Gizem; Er, Mesut; Malkoc, Hasan; Guleryuz, Ozkan; Uyar, Gulsen; Uzun, Davut; Ates, Mehmet Nurullah

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{
  "DOI": "10.1002/er.7171", 
  "abstract": "Aqueous-based slurry media for cathode electrode production offers a cleaner and safer environment during the electrode manufacturing step compared with the conventional organic solvent-based method used in the lithium-ion battery industry. In this work, carboxymethyl cellulose (CMC), styrene-butadiene rubber (SBR), and poly(ethylene oxide) (PEO) water-based binders are used to prepare LiNi0.5Mn0.3Co0.2O2 (NMC) cathode electrode. Detail electrochemical analysis reveals that the optimum mass ratio of CMC:SBR mixture is 1:2 when preparing an aqueous slurry for the NMC electrode. To mitigate particle cracking phenomenon during electrode drying step and obtain higher mass loading, a multi-layer coating technique is implemented. CMC-PEO binder mixture in aqueous media is also studied as an alternative aqueous processing method for NMC electrodes. The electrodes prepared with CMC-PEO mixture are demonstrated to be all crack-free, and electrochemical results indicate that the optimum mass loading of NMC electrode is between 15 and 18 mg cm(-2). This method is further tested in pouch cell format using a roll-to-roll pilot-scale production line to show the feasibility for commercial applications. Remarkably, pouch cell results manifest that aqueous-processed NMC cathode against graphite anode maintains its 89% capacity at 1C even after 1000 cycles. Highlights Water-based binders of carboxymethyl cellulose-poly(ethylene oxide) provide excellent cycling stability for LiNi0.5Mn0.3Co0.2O2 electrode. Multilayer coating allows electrodes for higher loadings without any crack formation. The water-based electrode preparation method is validated by pilot scale roll-to-roll electrode production line.", 
  "author": [
    {
      "family": "Demiryurek", 
      "given": " Ridvan"
    }, 
    {
      "family": "Gurbuz", 
      "given": " Nergiz"
    }, 
    {
      "family": "Hatipoglu", 
      "given": " Gizem"
    }, 
    {
      "family": "Er", 
      "given": " Mesut"
    }, 
    {
      "family": "Malkoc", 
      "given": " Hasan"
    }, 
    {
      "family": "Guleryuz", 
      "given": " Ozkan"
    }, 
    {
      "family": "Uyar", 
      "given": " Gulsen"
    }, 
    {
      "family": "Uzun", 
      "given": " Davut"
    }, 
    {
      "family": "Ates", 
      "given": " Mehmet Nurullah"
    }
  ], 
  "container_title": "INTERNATIONAL JOURNAL OF ENERGY RESEARCH", 
  "id": "229626", 
  "issue": "15", 
  "issued": {
    "date-parts": [
      [
        2021, 
        1, 
        1
      ]
    ]
  }, 
  "page": "21182-21194", 
  "title": "Roll-to-roll manufacturing method of aqueous-processed thick LiNi0.5Mn0.3Co0.2O2 electrodes for lithium-ion batteries", 
  "type": "article-journal", 
  "volume": "45"
}