Characterization of bi-material electrodes for electrochemical hybrid energy storage devices
Characterization of bi-material electrodes for electrochemical hybrid energy storage devices
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DOI：
10.1016/j.elecom.2010.03.040
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发表时间：
2010-06-01
影响因子：
5.4
通讯作者：
Wokaun, A.
中科院分区：
文献类型：
--
作者：
Cericola, D.;Ruch, P. W.;Wokaun, A.
电化学双层电容器和锂离子电池在电极水平上的混合可以通过在双材料电极中组合锂插入材料和电容材料来实现。制备了一种以活性炭和LiMn_2O_4为基体的双材料电极，并对其进行了表征。开发了一种实验装置，以测量单个分段双材料电极中两种不同活性材料之间的电流共享。该设置允许区分每种材料对整体电极性能的贡献。表征包括循环伏安法和恒流充放电循环。双材料电极的行为基本上是两种材料的行为的线性组合。(C)2010 Elsevier B.V.保留所有权利。
The hybridization of an electrochemical double layer capacitor and a lithium-ion battery at the electrode level can be realized by combining lithium insertion materials and capacitive materials in bi-material electrodes. A bi-material electrode based on activated carbon and LiMn2O4 has been prepared and characterized in the present work. An experimental setup was developed in order to measure the current sharing between the two different active materials in a single segmented bi-material electrode. This setup allows distinguishing the contribution of each material to the overall electrode performance. The characterization consisted of cyclic voltammetry and galvanostatic charge discharge cycling. The behavior of the bi-material electrode is essentially a linear combination of the behaviors of the two materials. (C) 2010 Elsevier B.V. All rights reserved.