1. Slavko Mentus, Serbia
In order to prevent rising danger by climate chenges, in recent decades agreement on the United Nations lewel was established, to reduce gradually the consumption of fossil fules until its total termination. This agreement (Paris conferences) till 2018 was signed by mayority of countries along the Globe. One of the requirements was the transition to electrically powered automobiles, which in developed countries started roughly in 2010. The competition between fuel cells and batteries as driving tools was then actual, but in key moment batteries mainfested themselves to be technologically superior. Already in 2018 ne number of electric cars produced in leading developed countries is expressed in millions.
The aim of this contribution is a short presentation on the principle of energy conversion in batteies, from which the troubles in their development may be derived, then, the comparison in which measure are the batteries competitive to the fossil fuels in energetic sense, and, what is the forecast that in near future the competitive power of batteries, by development of advanced types, may be additionally improved.