抄録
The charging-discharging behavior of lithium/LiCIO4/polypyrrole battery was found to show a different dependence on the thickness of a polypyrrole film cathode prepared at various polymerization potentials. Lithium batteries constructed with a polypyrrole cathode formed at a higher potential show better charging-discharging performance characteristics than those with a film prepared at a lower potential. The electrode kinetics of electrochemically prepared polypyrrole were investigated in an attempt to clarify the interesting dependence of the behavior of Li/polypyrrole battery on the thickness of polypyrrole cathode as a function of formation potential. A potential step chronoamperometry, together with an ac impedance measurement, has evidenced that there is a strong relationship between the doping charges and the apparent diffusion coefficients of polypyrrole electrodes. In practice, the battery performance of Li/LiCIO4 polypyrrole cells was examined by varying the current density. The upper limit of the current density at which the coulombic yield in the charging-discharging curves remains at 100% was found for both thin and thick films of 1 and 5 C cm-2 film formation charges.
本文言語 | English |
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ページ(範囲) | 2096-2102 |
ページ数 | 7 |
ジャーナル | Journal of the Electrochemical Society |
巻 | 134 |
号 | 9 |
DOI | |
出版ステータス | Published - 1987 9月 |
ASJC Scopus subject areas
- 電子材料、光学材料、および磁性材料
- 再生可能エネルギー、持続可能性、環境
- 表面、皮膜および薄膜
- 電気化学
- 材料化学