材料科学
炭黑
聚偏氟乙烯
多孔性
石墨
导电体
复合材料
陶瓷
电导率
电极
粒子(生态学)
导电的
电池(电)
聚合物
天然橡胶
化学
功率(物理)
物理化学
地质学
物理
海洋学
量子力学
作者
Maira Indrikova,Stephan Grunwald,Frederik Golks,Andreas Netz,Bastian Westphal,Arno Kwade
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2015-01-01
卷期号:162 (10): A2021-A2025
被引量:48
摘要
Model experiments, in which active material in the electrode is replaced with insulating ceramic particles, are used to show the importance of pure conductive additives network. Ceramic particles are chosen with particle diameter of 10 and 3 μm. Coatings with similar loading and varying levels of carbon black, graphite and polyvinylidene fluoride are fabricated, analyzed regarding electronic conductivity and investigated with a new "quasi" in-situ SEM compression method. The electronic conductivity strongly depends on porosity, inactive material amount and distribution. SEM/EDX images showed that coatings with 10 μm particles have higher porosity and denser network of conductive additives compared to 3 μm particles. Therefore, the conductive additives and binder amount should be adjusted based on the particle size distribution.
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