Potatoes are one of everyone favorite foods.
Some regions use potatoes as their staple food.
This is because potatoes contain many
beneficial elements, such as potassium [1-2]
It turns out that potassium can also be used for
batteries. In general, Lithium is the element
most often used to make batteries. Almost all
electronics, such as laptops, smartphones, etc.
use this battery. However, lithium has several
disadvantages such as being expensive, less
safe, and not long-lasting[3-4]. Scientists in
many fields are working around the clock to
improve and replace lithium-ion battery
technology. In this case, the researchers looked
for a special type of pure battery, a metal
battery that maintains the rechargeability and
longer service life of a lithium compound and
graphite anode. They found that potassium had
potential, but after testing it turned out it was
not as good as expected [5-7]
A battery is something that causes chemical
energy to be converted into electricity. The
battery has a positive side (terminal) and a
negative side (terminal). The downside is that it
is a source of electrons that energize the cables
connected to the electronic devices. Batteries

power electronic devices when connected to
conductive materials, such as wires.
Potato batteries are a type of electrochemical
battery, or cell. Certain metals (zinc in the
example below) undergo a chemical reaction
with the acid in the potato. This chemical
reaction produces electrical energy that can
power devices [8-10]
Typically, the dendrites grow and have sharp
edges that penetrate vital and volatile parts of
the battery, causing chemical leaks or risk of
fire. Lithium atoms have low surface mobility,
which means that the atoms that combine to
form dendrites end up piling up on each other,
like droplets forming large icicles on the corner
of a house roof[11-12].
In contrast to Lithium, Potassium has a higher
surface mobility, meaning the atoms stack up,
but then spread out on their own. The image is
like sand poured in a wide circle. This is quite
beneficial because it can reduce the risk of
explosion [13].
The mechanism of the battery is controlled by
the heat from the battery itself. According to
researchers, the heat from the battery is enough
to disperse the atoms over the surface and the
system will not melt the potassium or damage
the battery as a whole[14-15].
The discovery of a battery that can self-
recovery is not the first. But seeing that
potassium is cheap and easy to obtain is
something that will be profitable for the battery
industry in the future [16].
That is why it is necessary to This research
discusses alternative potato sheets that can
replace lithium for future batteries, with a
sample of 20 potato experiments.