English to Russian Tech/Engineering Electronics / Elect Eng polymer gel electrolyte

The snag with all these applications is that they need battery power. Batteries tend to be the opposite of flexible: solid and made in awkward shapes not readily suited to flexible devices. ‘There’s no physical reason that batteries can’t be flexible; it’s just a practical problem,’ said Will Stewart, chair of the IET communications quality panel and a visiting professor at Southampton University’s optoelectronics research centre.

Read more: http://www.theengineer.co.uk/in-depth/analysis/portable-powe...

Thank you!