Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, UK.
ACS Nano. 2010 May 25;4(5):2730-4. doi: 10.1021/nn901391q.
Solid-state and flexible zinc carbon (or Leclanche) batteries are fabricated using a combination of functional nanostructured materials for optimum performance. Flexible carbon nanofiber mats obtained by electrospinning are used as a current collector and cathode support for the batteries. The cathode layer consists of manganese oxide particles combined with single-walled carbon nanotubes for improved conductivity. A polyethylene oxide layer containing titanium oxide nanoparticles forms the electrolyte layer, and a thin zinc foil is used as the anode. The battery is shown to retain its performance under mechanically stressed conditions. The results show that the above configuration can achieve solid-state mechanical flexibility and increased shelf life with little sacrifice in performance.
采用功能化纳米结构材料的组合来制备固态和柔性锌碳(或勒克朗谢)电池,以实现最佳性能。通过静电纺丝获得的柔性碳纳米纤维垫用作电池的集流器和阴极支撑体。阴极层由与单壁碳纳米管结合的氧化锰颗粒组成,以提高导电性。包含氧化钛纳米颗粒的聚氧化乙烯层形成电解质层,而薄锌箔用作阳极。该电池在机械受力条件下仍能保持其性能。结果表明,上述结构可以实现固态机械柔韧性和延长货架寿命,而性能几乎没有损失。