3.8 Article

Characterization of thermally aged AlPO4-coated LiCoO2 thin films

Journal

NANOSCALE RESEARCH LETTERS
Volume 7, Issue -, Pages 1-4

Publisher

SPRINGER
DOI: 10.1186/1556-276X-7-12

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Funding

  1. National Research Foundation of Korea (NRF)
  2. Ministry of Education, Science and Technology [2009-0071073]
  3. National Research Foundation of Korea [2009-0071073] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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The electrochemical properties and stability during storage of pristine and AlPO4-coated LiCoO2 thin films were characterized. The wide and smooth surface of the thin film electrode might provide an opportunity for one to observe surface reactions with an electrolyte. The rate capability and cyclic performance of the LiCoO2 thin film were enhanced by AlPO4 surface coating. Based on secondary ion mass spectrometry analysis and scanning electron microscopy images of the surface, it was confirmed that the coating layer was successfully protected from the reactive electrolyte during storage at 90A degrees C. In contrast, the surface of the pristine sample was severely damaged after storage.

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