An original technology for a 1mm-thick flexible rechargeable battery which can be charged in just 10 minutes has been developed and revealed in July's issue of the Nano Letters, an international academic journal. It is expected that a thin and light quick-charging high-performance battery will be commercialized much earlier than initially thought. Report Updated Aug. 4, 2014 6:50am PST.
The journal reveals that the Ulsan National Institute of Science and Technology (UNIST) developed a breakthrough battery by applying nano technology to electrode material and current collector, the core of the lithium secondary battery. The team was led by Prof. Cho Jae-pil. UNIST went public with this news yesterday.
Today's existing flexible battery takes about an hour to charge, but the new battery will be able to be fully charged in 10 minutes or less.
It is now bendable while satisfying the performance requirements of all commercialized existing rechargeable batteries. The new flexible batteries could be used in smartphone, flexible smartphones and wearable devices.
The research team used the nickel oxide system instead of the lithium cobalt oxide, the current anode material to improve the charging capacity by 20%. Also, they coated the surface with the mixed oxide containing vanadium to improve electronic conductivity more than two times, and improve lithium ion mobility more than three times.
As the cathode material, the expanded graphite, which has 13 times more electronic conductivity than the natural graphite, was used. The surface was coated with 10nm or less amorphous silicon particles to improve battery capacity by about 60%.
Although most of the world is hoping for a longer lasting rechargeable battery, the next best thing is to have one that recharges super-fast.
It's unknown at this time which battery company will be first to adopt the new technology. Earlier this week we reported that Foxconn is seeking to enter the iPhone battery business. Perhaps Foxconn's CEO Terry Gou should be banging on their door to get a leap on this technology for Apple.
It was also reported earlier this month that Apple signed a deal with Simplo who was able to deliver a thinner battery that Apple was seeking for the iPhone 6. The battery was noted as being 2mm thin. The battery breakthrough noted in today's report is only 1mm thin. That would certainly be something of interest to Apple for 2015.
Update August 4, 2014 6:50am PST: Also read: "Stanford breakthrough might triple battery life, about another possible breakthrough that might be commercialized in 3 to 5 years (which usually means 5-7 years) based on a new pure lithium battery.