Lithium-Schwefel-Hochenergie Akkumulatoren mit reversiblen Matrix-interkalierten Schwefelkathoden

高能量密度锂S电池的成功设计具有极具挑战性的前景，将显著推动环保汽车技术的发展。锂S电池将使现有锂氧化物电池的能量密度增加两倍，并结合快速充放电循环的高可逆性和循环寿命。在深入研究新型电化学活性材料纳米容器正极材料的基础上，我们计划在微米和纳米尺度上开发具有层次化结构的碳电极，从而实现高能量密度的锂S电池。在我们的多学科联盟中，聚合物工程师将开发基于聚合物的新型正极材料，电化学家将优化电化学性能，物理学家将试图从实验和理论两个角度了解基本原理。应用方面将通过与一家领先的电池生产公司的密切联系来介绍。新材料开发路线将与专用仪器相结合，以揭示不同水平的结构和电化学方面、绝对元素组成、深度剖析和电子氧化状态以及充放电模拟。

The successful design of Li-S batteries with high energy density has the challenging perspective to significantly boost the development of environmently friendly automotive technology. Li-S batteries will triple the energy density of existing Li-oxide batteries combined with high reversibility of fast charging-discharging cycles and lifetime of thouthands of cycles. Based on detailed investigations of novel cathode materials with nano-containers for electrochemical active materials, we plan to develop hierarchically structured carbon electrodes on micro- and nano-scale leading to high-energy density Li-S batteries. In our multidisciplinary consortium polymer engineers will develop the new polymer-based cathode materials, electro-chemists will optimise the electrochemical performance and physicists try to understand basic principles both from experimental as well as from theoretical viewpoint. Application aspects will be introduced by close contact with a leading battery producing company. New materials development routes will be combined with dedicated instrumentation to reveal structural and electro-chemical aspects at different levels, absolute elemental composition, depth profiling and electronic oxidation states as well as simulation of charging and discharging.