This battery is Bull S#!^

[Ellirium113]

Microorganisms in cow manure used to build rechargeable battery

The battery's bioelectrolyte contains microorganisms extracted from cow manure and other sources. Cow manure contains microorganisms that naturally convert hydrogen and carbon dioxide into small organic compounds. These bacteria can also be "fed" with an electrode to produce these organic compounds in the electricity-consuming process of microbial electrosynthesis. A microbial fuel cell does the reverse, producing electricity by breaking down small organic compounds.

To charge the new battery, microorganisms from the cow manure in the cathode are fed electrons, which they combine with carbon dioxide from the environment to produce acetate. To discharge the battery, different microorganisms in the anode consume the acetate to produce electrons. The researchers demonstrated that the charge can be stored for several hours, and the battery can be repeatedly charged and discharged over the course of two weeks.

http://techxplore.com/news/2016-04-microorganisms-cow-manure-rechargeable-battery.html

Well this is crappy news!