Gadgetory

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 of how those little cylinders you can buy at gas stations and grocery stores all 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 freakin battery out of coins and Tupperware what a badass a typical alkaline battery you can buy it 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 manganese dioxide which may have actually been used as a fire starter 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 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 precisely results 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 triple-a sizes is the nickel-metal hydride battery or ni MH not only our ni MH 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 NI MH batteries don't try to use older chargers designed for largely obsolete nickel cadmium batteries which could leave your ni MH batteries under charged 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 our smartphone are those ni MH actually those are usually lithium ion batteries not ni MH 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 other kinds of batteries and caused them to lose capacity if they aren't fully drained before being recharged since we're are ways unplugging and re-plugging 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 charged and discharged 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 work 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 rumoured 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 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