Abstract Hybrid energy storage devices have been studied with combining the high energy of lithium ion batteries and high power and long life of supercapacitor in a single system. We successfully fabricated hybrid supercapacitors using granule Li4Ti5O12/activated carbon anode and activated carbon cathode for high electrochemical performances. The hybrid supercapacitors deliver a high capacity (63 F g−1) as well as a superior rate capability (81.9% retention from 0.5 to 5 A g−1) and a cycling stability (92.8% retention after 7000 cycles at 3 A g−1). This is related to a small internal resistance value. Therefore, hybrid supercapacitors based on LTO/AC and AC electrodes are a promising and innovative solution for high performance hybrid supercapacitor.

中文翻译：

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使用颗粒 Li 4 Ti 5 O 12 / 活性炭复合阳极改善混合超级电容器的性能

摘要 研究了将锂离子电池的高能量与超级电容器的高功率、长寿命结合在一个系统中的混合储能装置。我们使用颗粒状 Li4Ti5O12/活性炭阳极和活性炭阴极成功制造了混合超级电容器，以获得高电化学性能。混合超级电容器具有高容量（63 F g-1）以及优异的倍率性能（从 0.5 到 5 A g-1 保持率为 81.9%）和循环稳定性（在 3 A g- 下 7000 次循环后保持率为 92.8%） 1）。这与较小的内阻值有关。因此，基于 LTO/AC 和 AC 电极的混合超级电容器是高性能混合超级电容器的有前途的创新解决方案。