“The prototype is similar in size to a typical AA battery and has an energy storage density of 596 amp hours per kilogram – roughly one order of magnitude greater than a smartphone’s lithium-ion battery. This means that the battery could last at least twice as long as conventional lithium-ion batteries on a weight-for-weight basis.”
UH? Supposedly the sugar battery has an energy storage density of 10 times that of lithium ion, but it could only last twice as long??
I must say after reading that my confidence level for the rest of the article was in bad need of recharging.
Is it rechargeable or not?
I'm gonna keep my ion you.
Density is volume (three dimensional space) to energy capacity.
Lithium is light weight. So this battery must be about 5 times heavier than a lithium battery of the same physical volume. At least that what it takes to make the article make sense...
It has to be refilled with fuel - sugar. It releases electricity, water and CO2. Getting rid of water with a phone seems like a problem... Not for a car though...
Especially after the author called 'amp-hours' the 'energy storage density'. Without knowing the voltage, amp-hours is doesn't tell you anything about energy. In fact, it doesn't tell you much about anything.
One order of magnitude...in the binary system = 2. Et voilà!