Up to date, enormous researches have been highlighted on the materials for developing the energy system with advanced properties. Nevertheless, it is difficult to solve the problems that are associated with fundamental electrochemical performance, such as potential limitations. The conventional strategies for increasing electrical performance of energy or power have been basically devoted to the development of materials with high capacity or high conductivity. In view of the equivalent-circuit, it is same as making an extremely integrated parallel-circuit. The analogical parallel-circuit achieved by developing materials inevitably causes voltage limitation, and the energy and power of systems are in competition. Up to now, these limitations are taken for granted, as though the generating analogical parallel-circuit is only a possible way for high performance energy system in the single unit.  To overcome this barrier, we introduce a novel design in the supercapacitor system, which enables us to realize the high voltage characteristics that are unavailable when conventional schemes are applied. The new energy system is composed of periodically isolated-electrodes (IEs) and sectionalized-electrolytes, without restrictions on electrode or electrolyte selections, which are key factors of the high voltage. The system permits energy and power to be simultaneously and unlimitedly increased and also assumes an origami-type that accommodates extremely high stable stretching. This conceptual system is the first one made by the analogical integrated serial-circuit in a single unit cell, which is free from the above-mentioned critical limitation. Here, it is proved that voltage, energy and power of the conceptual system have a linear relationship with increased number of IEs+1 and there is no upper limit. We believe that our concept provides noteworthy implications across a number of disciplines toward ultimate energy, power and stretchable devices for next generation of electronics.

High voltage energy storage systems using facile patterning approach

248th National Meeting (2014)

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