Sugar battery

Scientists approve, that manufacture "sugar" batteries is possible, and moreover - in the future they become the standard for the industry.
Scientists from American Saint Louis University approve, that have found a way a fairy tale to make - to embody in practice idea that the electric power can be received from any sacchariferous source. New a battery work at a room temperature and use special enzymes for oxidation of sugar and reception from it energy. While scientists managed to achieve 20 % of efficiency, however they approve, that the commercial variant will work in 3-4 times longer, than Li-ion a battery, at the same physical sizes.
The first devices which will go to sale, most likely, become portable load for mobile phones-was simply by virtue of that new accumulators yet such portable. However in process of development of technology it is expected, that the sizes and cost "sugar" batteries will manage to be lowered to such level when they can keep within standards of the industry and simply naturally will replace existing now a battery and accumulators "iron".
When we are waited with this happiness? To manufacture of the battery of new type will go in 3-4 years, and it confuses us. How much "working" all is this technology? And how the nobility, whether is the application of researchers only attempt to entice money venture funds or simply private investors? The newest history knows many cases when on a wave of " green technologies " dishonest figures received considerable money " on end of researches and expansion of manufacture ", and then disappeared in a unknown direction.