A new structure will emerge that will allow full charge in only 12 minutes of stamp size batteries

ByAndy Armstrong

From smartphones to laptops, every mobile device is rechargeableSecondary batteryAlthough it is installed, it takes a long time to fully charge whether the battery is big or small, it is very annoying for such a time to wait for charging. Meanwhile, researchers at the University of Maryland have announced a new structure called "nanopore" that dramatically shortens the charging time of the battery.

A Billion Holes Can Make a Battery | UMD Right Now :: University of Maryland
http://www.umdrightnow.umd.edu/news/billion-holes-can-make-battery


A Billion Holes Can Make a Battery - YouTube


Chanyuan Liu who got a doctorate in materials science and engineering from the University of Maryland was invented nanopores. She comments that stamp size batteries that adopt nanopores can be fully recharged in 12 minutes and can be reused thousands of times.


What is called nanoporoses in the first place is to make a small nano-sized ceramic hole in the battery and to allow the charge to move between the nanotube electrodes by placing an electrolyte in it .


The image showing the structure of the nanopores at the right, the image on the left is the image when actually observing the nanopores with a microscope.


The nanopores extend vertically as shown by the left woman (Liu) by hand, and inject electrolyte into it. Since the nanopores have a diameter of about 1000 nanometers, which is a very small hole, it is possible to open a lot of nanopores in mini-size secondary batteries.


In experiments using existing devices, we succeeded in supplying power with a battery that adopts nanopores, and now it is a postage stamp size (in the case of Japanese postage stamps, 50 yen stamps are 22.5 mm in length × 18.5 mm in width ) It seems that it is possible to embed 1 billion pieces of nanopores in the battery. The research team at the University of Maryland seems to be convinced that nanoporous batteries will succeed as "this nanopore can be easily adopted for existing thin batteries".

By the way, looking at the charging time of the small secondary battery currently being sold, the small button type secondary battery sold by Maxell has a diameter of 9.5 mm and a charging time of 6 hours at a voltage of 2.4 V, The number of reusable times is 500 times.

Button type Titanic Acid Carbon Lithium Secondary Battery "TC" [Corporate Product] - Maxell