Improvement of lithium-ion battery performance using a two-layered cathode by simultaneous slot-die coating
Improvement of lithium-ion battery performance using a two-layered cathode by simultaneous slot-die coating
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DOI：
10.1016/j.est.2015.12.008
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发表时间：
2016-02
影响因子：
9.4
通讯作者：
Li-Chun Chen;Darjen Liu;Ta‐Jo Liu;C. Tiu;C. Yang;Wen-bing Chu;C. Wan
中科院分区：
文献类型：
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作者：
Li-Chun Chen;Darjen Liu;Ta‐Jo Liu;C. Tiu;C. Yang;Wen-bing Chu;C. Wan
使用同步狭缝模涂法生产的两层阴极可以提高锂离子电池（LIB）的电化学性能。每层的组合物含有不同比例的两种导电添加剂；一种含有高比例的微米级石墨，另一种含有高比例的纳米级炭黑。在制造的四种电池结构中，发现上层具有更多炭黑和下层具有更多石墨颗粒的两层阴极具有最佳的电流放电容量和更长的寿命周期。这一发现可能在新的锂离子电池设计中具有潜在的应用。
The electrochemical performance of lithium-ion batteries (LIBs) could be improved using a two-layered cathode produced by a simultaneous slot-die coating method. The composition in each layer contained different proportions of two conductive additives; one with a high percentage of micro-sized graphite, and the other with a high percentage of nano-sized carbon black. Of the four cell structures fabricated, the two-layered cathode with an upper layer having more carbon black and a lower layer having more graphite particles was found to give the best current discharge capacity and longer life cycle. This finding could have potential applications in new LIBs design.