Hydrogen is a well-known chemical element for centuries however its use was highly limited as mainly industrial gas applied in metallurgy, chemical industry, glass industry and others. Within last two decades, hydrogen became significantly more popular thank to its use also as an alternative fuel and source of an energy. Beside hydrogen storage e.g. in hydrides and/or hydrocarbons hydrogen can be also compressed up to 1100 bar and then stored at the same pressure level thanks to the development of compression units and storage units. Regarding the on-board car storage, hydrogen is stored at 700 or 350 bar in composite pressure vessels and is being filled from mentioned 1100 or 1000 storage unit made of steel. The storage in full steel pressure vessel (Type I) is highly demanding task to fulfill all mechanical properties, pressure, SSC, cycle and hydrogen embrittlement requirements etc. Presented paper describes the background, advantages, disadvantages and issues related to the hydrogen storage and transport. Also, a comparison of hydrogen mobility and electro mobility is briefly submitted.Keywords: Hydrogen, energy, storage system, high pressure vessels, hydrogen embrittlement
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