BROWSE

Related Researcher

Author

Cho, Jaephil
Nano Energy Storage Materials Lab (NESM)
Research Interests
  • Li-ion battery, metal-air battery, redox-flow battery, flexible battery .

ITEM VIEW & DOWNLOAD

Improvement of electrochemical properties of natural graphite anode materials with an ovoid morphology by AlPO4 coating

Cited 14 times inthomson ciCited 9 times inthomson ci
Title
Improvement of electrochemical properties of natural graphite anode materials with an ovoid morphology by AlPO4 coating
Author
Lee, Sang-EunKim, EunjinCho, Jaephil
Keywords
Aluminum compounds; Coatings; Electrochemistry; Nanostructured materials; Precipitation (chemical); Sol-gels
Issue Date
2007
Publisher
ELECTROCHEMICAL SOC INC
Citation
ELECTROCHEMICAL AND SOLID STATE LETTERS, v.10, no.1, pp.A1 - A4
Abstract
AlP O4 -coated natural graphite was prepared by mixing precipitated AlP O4 nanoparticles with natural graphite (NG) powders that had an ovoid morphology in water, followed by vacuum-drying at 150°C for 24 h. This simple coating method did not require any further heat-treatment above 400°C, which is an essential process for the sol-gel driven coating methods (Al2 O3 and Zr O2). The electrochemical properties of the AlP O4 -coated NG were compared with bare and pitch-coated samples and are reported. Impedance analysis revealed that, although the value of the surface film impedance of the AlP O4 -coated sample was 2.4 times larger than the bare NG, its charge-transfer (CT) impedance was 7.5 times smaller than the bare NG. Consequently, we believe that CT was a critical factor that affected the cycle life performance of the sample.
URI
Go to Link
DOI
http://dx.doi.org/10.1149/1.2364308
ISSN
1099-0062
Appears in Collections:
ECHE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU