Improvement of the Cycle Property of Binder-Free LiCoO₂ Positive Electrode Film Deposited via the Pulsed Electrophoretic Deposition

• Miyazaki Hidetoshi

  Graduate School of Natural Science Technology, Shimane University

• Mimaru Yu

  Graduate School of Natural Science Technology, Shimane University

• Makinose Yuki

  Graduate School of Natural Science Technology, Shimane University

• Tsuji Takeshi

  Graduate School of Natural Science Technology, Shimane University

• Yamada Hirotoshi

  Graduate School of Engineering, Nagasaki University

• Mutai Toshiki

  Institute of Industrial Science, The University of Tokyo

Bibliographic Information

Other Title

• Improvement of the Cycle Property of Binder-Free LiCoO₂ Positive Electrode Film Deposited via the Pulsed Electrophoretic Deposition

Abstract

Herein, a stable LiCoO₂/acetylene black (AB) acetone suspension was prepared using LiCoO₂ and AB powders with iodine dissolved in acetone as solvent. Using the LiCoO₂/AB acetone suspension, LiCoO₂/AB films without binders were deposited on stainless steel substrates via direct current (DC) and pulsed electrophoretic deposition (EPD) methods. The thickness of the resulting films deposited via both methods was greater than 50 µm with 5.0% AB content. The capacity of the DC-EPD film was 100 mA·h/g in the first cycle; this capacity decreased with increasing number of cycles, and subsequently began to peel off from the substrate. The capacity of the pulsed-DC EPD deposited films was 115 mA·h/g in the first cycle; this capacity slightly decreased with an increase in the number of cycles, and film degradation was not observed after the charge–discharge cycles.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 60 (12), 2576-2579, 2019-12-01

  The Japan Institute of Metals and Materials

Keywords

• LiCoO₂
• electrophoretic deposition
• film
• SEM

Details

• CRID: 1390001277396085504
• NII Article ID: 130007751040
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.mt-m2019112
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 030094292
• Web Site: http://id.ndl.go.jp/bib/030094292
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I030094292
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/60/12/60_MT-M2019112/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed