Extremetech – A group of Korean scientists, working at the Ulsan National Institute of Science and Technology (UNIST), have developed a fast-charge lithium-ion battery that can be recharged 30 to 120 times faster than conventional li-ion batteries. The team believes it can build a battery pack for electric vehicles that can be fully charged in less than a minute.
The Korean method takes the cathode material — standard lithium manganese oxide (LMO) in this case — and soaks it in a solution containing graphite. Then, by carbonizing the graphite-soaked LMO, the graphite turns into a dense network of conductive traces that run throughout the cathode. This new cathode is then packaged normally, with an electrolyte and graphite anode, to create the fast-charging li-ion battery. Other factors, such as the battery’s energy density and cycle life seem to remain unchanged.
These networks of carbonized graphite effectively act like blood vessels, allowing every part of the battery to recharge at the same time — thus speeding up recharge by 30 to 120 times.
Carbon-Coated Single-Crystal LiMn2O4 Nanoparticle Clusters as Cathode Material for High-Energy and High-Power Lithium-Ion Batteries
14 pages of supporting information
If you liked this article, please give it a quick review on ycombinator or StumbleUpon. Thanks
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
Known for identifying cutting edge technologies, he is currently a Co-Founder of a startup and fundraiser for high potential early-stage companies. He is the Head of Research for Allocations for deep technology investments and an Angel Investor at Space Angels.
A frequent speaker at corporations, he has been a TEDx speaker, a Singularity University speaker and guest at numerous interviews for radio and podcasts. He is open to public speaking and advising engagements.