Researchers out of China have developed a way to decrease the charging time of lithium-ion batteries significantly using copper coating and nanowires.
Researchers manage to charge a lithium-ion battery to 60 percent in 5.6 minutes : Futurology
From www.reddit.com
2022-04-30 19:04:14
/u/Sorin61
Excerpt:
A team of researchers affiliated with multiple institutions in China has successfully managed to increase the speed of charging a lithium-ion battery to a rate of 5.6 minutes for a 60% charge, according to a report by TechXplore published on Thursday. They achieved this impressive feat by adding a copper coating and nanowires to the battery’s anode in order to effectively improve ordering……
One of the major bottlenecks in speeding up charging is the battery’s anode. Most are made of graphite and are constructed in a non-ordered slurry, which the researchers note, is not an efficient means of passing along current.
To overcome this problem, the researchers first ran particle-level theoretical models to optimize the spatial distributions of different sized particles and electrode porosity. They then took what they learned from the models to make changes to a standard graphite anode. They coated it with copper and then added copper nanowires to the slurry and then heated and then cooled the anode, which compressed the slurry into a more ordered material.
They affixed the anode to a standard lithium-ion battery and then measured the amount of time it took to charge. They found they were able to charge the battery to 60% in just 5.6 minutes (as opposed to 40% for a control battery with no alterations) and to 80% in just 11.4 minutes.
