1 Ocak 2013 Dergi makalesi Açık Erişim

Avci, Ercan; Mazman, Muhsin; Uzun, Davut; Bicer, Emre; Sener, Tansel

Citation Style Language JSON

{
  "DOI": "10.1016/j.jpowsour.2013.04.030", 
  "abstract": "A facile and efficient solid state synthesis of carbon and nitrogen coated lithium iron phosphate (LiFePO4/CN) cathode material is achieved via polymer-pyrolysis method using polyaniline-chloride (PANI-CI). The current investigation is comparatively analyzed with the results of the composite of LiFePO4/C (LFP/C) synthesized using sucrose as carbon precursor. The optimized LiFePO4/CN (LFP/CN) composite is synthesized at 700 degrees C using 10 wt.% PANI-CI. The composite exhibits remarkable improvement in capacity, cyclability and rate capability compared to those of LFP/C. The specific discharge capacities as high as 164 mAh g(-1) (theoretical capacity: 170 mAh g(-1)) at 0.1 C and 100 mAh g(-1) at 10 C rates were achieved with LFP/CN. In addition, the composite exhibits a long-term cycling stability with the capacity loss of only 10% after 1000 cycles. PANI-CI shifts the size distribution of the composite to nanometer scale (approximately 150 nm), however the addition of sucrose does not have such an effect. LFP/CN contains 1.6 wt.% nitrogen and 15.8 wt.% carbon. LFP particles are mostly coated with a few nanometers thick C-N layer forming a core-shell structure. The possible crosslinking mechanism of PANI-Cl upon pyrolysis on size reduction and formation of uniform carbon/nitrogen coating on LFP are also discussed. (C) 2013 Elsevier B.V. All rights reserved.", 
  "author": [
    {
      "family": "Avci", 
      "given": " Ercan"
    }, 
    {
      "family": "Mazman", 
      "given": " Muhsin"
    }, 
    {
      "family": "Uzun", 
      "given": " Davut"
    }, 
    {
      "family": "Bicer", 
      "given": " Emre"
    }, 
    {
      "family": "Sener", 
      "given": " Tansel"
    }
  ], 
  "container_title": "JOURNAL OF POWER SOURCES", 
  "id": "89309", 
  "issued": {
    "date-parts": [
      [
        2013, 
        1, 
        1
      ]
    ]
  }, 
  "page": "328-337", 
  "title": "High performance LiFePO4/CN cathode material promoted by polyaniline as carbon-nitrogen precursor", 
  "type": "article-journal", 
  "volume": "240"
}