South Korean scientists able to dramatically reduce the charging time of lithium-ion batteries

August 16, 2012
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    Lithium-Ion Battery Recharge Time
    As you guys may well be aware, South Korea is the home country for two of the biggest electronics manufacturers in the world: Samsung and LG. That being said, it surely isn’t surprising to see many breakthroughs in various sectors of the consumer electronics field being announced from this Asian country. Today I’m happy to report on one such breakthrough, one that addresses what is arguably the main problem in the industry today: batteries.

    During the past few months we’ve seen scientists from around the world working on graphene-based batteries. While many believe that graphene is the next step in battery evolution, I wouldn’t count on such prototypes heading for mass manufacturing anytime soon. South Korean scientists have, however, recently published research results that could lead to a major improvement in the current battery type, those based on Li-Ion.According to these scientists, they have developed a method for charging large lithium-ion batteries — such as those found inside electric cars, — in just a few minutes instead of many hours.

    This is accomplished by adding a network of carbonized graphite conductors throughout a battery’s electrodes. For all intents and purposes, the dense structure of a regular lithium-ion battery is transformed into a big network of smaller anode/cathode groups that are squeezed tightly together. This way, the modified battery will charge evenly throughout its entire structure, rather than charging progressively inward from the terminals. The physics of the discharge phenomena, as well as the battery’s energy density level do not suffer at all, while the entire charging process takes a whole lot less to complete. It looks like it’s all upsides!

    Unfortunately though, this new technology is somewhat limited in smaller batteries (such as those inside smartphones and tablets) due to their smaller size. The technology is more applicable to larger batteries that are found inside electric cars. Nevertheless, this new tech should, if applied to mobile devices as well, improve the charge time of your smartphone’s battery.

    “The research is especially remarkable in that it overcame limitations of existing lithium-ion batteries,” says  professor Cho Jae-Phil from the Ulsan National Institute of Science and Technology. The research team mentioned that it will probably take about 10 years before this new discovery will become available for mass production.

    What do you guys think? How cool would it be to be able to charge your electric car in 15-20 minutes before getting back on the road? Or to completely charge your smartphone’s battery in about 10 minutes or so? Any Droid MAXX owners that would to see that happening as soon as possible? Let us know in the comment section below!

    Comments

    • http://www.nathanurbina.com/ Nate

      Gimme a minute to fully charge my dead phone lol.

    • MasterMuffin

      sounds good, and now LETS WORK SO WE CAN GET BETTER BATTERY LIFE TOO!

    • some 1 you dont know

      fuck yes…

    • battfag

      Useless if ti takes 10years min to develop. By then another technology will overtake it. What I would have for concern is longevity. Shorter recharge means higher amps higher temps and stress to the components and structures contained within the cel. From what I read this design is to allow the high current without the heat build up which kills cels. It might exist in part in conjunction with other developing tech. Like free ion charging. It might be enough to trickle that 250mah into your 2500mah battery to keep it topped while in standby. Add this fast charge feature and higher mah rates and you can extend you cels discharge life.

      BTW article linked,
      First capacitors are NOT batteries. The way each works is vastly different than the other. Second discharge does not = longer life. Capacitors are known for high discharge in a short time. Example cars with large stereos use caps to buffer power sags caused by high excursions of subwhoofers IE high drain scenarios where the draw is greater than the battery/alternator’s ability to provide power. So no I doubt the graphine advance in the design of a capacitor will trickle to our phones. Those capacitors would benifit power stations surge protectors etc to regulate power not store it to discharge over time. Look at it like this a capacitor is to a battery like a bomb is to a fire. One is expends its energy instantly the other does so over a extended period of time. What our phones want and need is high storage (mah, milli amp hours) and fast charge rate IE fast return of the chemical make up inside the cel. A misnomer is that your “charging” by putting POWER into the cel and storing it. You are not. You are sending power in to alter the chemicals in the cel to produce current. SO the power you drain out of a battery is the reaction of chemicals inside the battery not the electricity you used to charge it.

      http://electronics.howstuffworks.com/capacitor.htm
      read all the posts
      http://boards.straightdope.com/sdmb/showthread.php?t=538620

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