ah the humble battery it makes everything from cruising down the
Boulevard in your car or cruising for a date on Tinder possible but have you
ever wondered how those little cylinders you can buy at gas stations and grocery
stores of those blocky things that you put in your laptop can store so much
energy well despite the massive diversity in battery types they all rely
on the same sort of chemical reaction to create energy which is actually very
similar to that Breaking Bad episode where Walter White builds his own
freaking battery out of coins and Weare what a badass a typical alkaline battery
you can buy at the store to put into your remote or whatever else contains an
anode on the negative end a cathode on the positive end an electrolyte paste
which contains ions which are electrically charged molecules different
materials make up the anode and cathode in a plain old alkaline battery the
anode is made of zinc like what you'd find in coins while the cathode is
comprised of maganese dioxide which may have actually been used as a Fire
Starter by by cave people but anyways
the ions in the electrolyte can combine with the zinc resulting in a reaction
that releases electrons when you close the circuit by putting the battery
inside of your favorite electronic device negatively charged electrons
leave the zinc anode go through your device providing electrical power and
flow back into the positively charged cathode these chemicals are readily
available and cheap making alkaline batteries readily available and
affordable able and convenient and etc etc but because chemical reactions used
up all the different substances inside of the battery and are hard to reverse
they're usually useless once they die in
fact trying to recharge a regular alkaline battery won't precisely result
in the opposite chemical reactions meaning you could wind up with dangerous
byproducts leaking everywhere so don't
do it fortunately many other types of batteries are rechargeable because they
use different chemicals that react in a way that make running the discharging
reaction in Reverse both easy and most
importantly safe today the most common
type of rechargeable batteries that you can buy in double A or AAA sizes is the
nickel metal hydride battery or NIMH not
only are n imh Batteries rechargeable but they also tend to last quite a bit
longer than their alkaline counterparts on one charge making them a good choice
for things like digital cameras that suck battery life fairly quickly however
they can be a bit tricky to recharge so make sure you're getting a quality
charger approved for the use of NIMH batteries don't try to use older
Chargers designed for largely obsolete nickel cadmium batteries which could
leave your NIMH batteries undercharged or even damaged not not good well okay
Luke that's all fine and dandy for my digital camera but what about the
batteries in my laptop or smartphone are those an imh actually those are usually
lithium ion batteries not n imh Batteries lithium ion batteries are the
kind of power source of choice for many rechargeable Electronics not only
because of their high energy density and
longer run times but they don't suffer from issues such as the memory effect
which can affect uh other kinds of batteries and cause them to lose
capacity if they aren't fully drained before being recharged since we're
always unplugging and replugging in our laptops tablets and phones lithium ion
batteries are a great choice currently
since they don't care how much juice they have inside themselves when you go
to plug them back in they will just charge all the way up some newer devices
have even taken lithium ion batteries a step farther with Lithium Polymer
designs that contain electrolyte gel making it possible to fit the battery
into a small flexible package ideal for thin higher performance devices like
high-end smartphones but even newer rechargeable batteries aren't perfect
over time all those charge and discharge Cycles will cause batteries to wear out
due to chemical reactions proceeding not quite perfectly and of course most of us
are still frustrated with our batteries dying after just a day's use or just a
few hours with something like a laptop so as we continually demand faster
mobile devices with longer battery life there are a number of experimental
battery technologies in the works that could one day make charging your phone
every night a thing of the past oh please make that happen these batteries
could be things such as ceramic cathodes or glass electrolytes and are not only
more durable but could last several times larger than current rechargeable
battery Tech due to higher energy densities Apple has been heavily rumored
to be looking at Ceramic batteries for some of its future products so in the
near future you might only have to remember to charge your iPhone once
every few days especially important if your usual activities consist of walking
around Las Vegas with like a selfie stick you know who hasn't used batteries
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tunnel into other countries thank you guys for watching this video if you
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