Supercapacitors are designed and used for temporary storage of electric energy. On contrary to batteries, the process of chargé accumulations occurs at the boundary between solid electrode and electrolyte. Hence, the physical surface of the electrode must he fairly high. The aim of ...

A possibility of massive utilization of fuel cells in tertiary sector is the main topic of the article. It starts with description of the shift in a definition of the extent of renewables (RES), then continues with a description of large „stand-alone“ RES system with accu...

Based on the continuous development of all countries are increasing demands on human comfort, simplification of work and thus the energy. Likewise, increasing the demands on the use of all available methods to easily obtain this energy, environmentally friendly and inexpensive. But ener...

This article deals with new apparatus created for teaching purposes. The apparatus should familiarize students with functioning of electrolyzer and fuel cell in a practical way and make them to be interested generally in renewable sources of power. This paper also presents first re...

The latest forecasts of the electricity indicate that the photovoltaic (PV) systems produce about 30 000 TWh of electricity in 2050. This huge amount cannot be made from materials whose reserves on the Earth don’t exceed 10–4 až 10–6 weight percent. This condition is very ...

Despite the effort of research centres concerning development and production of batteries all over the world, no ideal separator for all types of alkaline batteries is designed. Thanks wide range of offered materials suitable for battery separators, it can be selected the most conv...