Harvard University researchers developed Solid state battery can full charge in 10 minutes

Harvard University researchers have made a breakthrough in solid-state battery technology through their research. The research has been published in a new edition of Nature Materials, which shows how a solid-state battery can be prepared to fully recharge within 10 minutes. The lithium metal battery researchers are from Harvard’s John A. Paulson School of Engineering and Applied Sciences (SEAS). The lead author of the article published in Nature Materials is Jin Li, who is also an associate professor of materials science at SEAS. The newly developed battery has an estimated charging cycle of 6,000, which is much more than any other pouch battery cell.

of the researcher AccordingLithium metal anodes are the preferred choice for batteries as they have 10 times the capacity of commercial graphite anodes. These can significantly increase the driving range of EVs. The researchers say that their research holds important points for practical solid-state batteries with high efficiency for industrial and commercial use.

The formation of dendrites on the anode is a major challenge in the manufacture of solid-state batteries. They can accumulate on lithium and grow in the electrolyte. Their formation helps damage the barrier separating the anode and cathode, leading to a short-circuit or fire. The research team designed a multilayer battery that separates different materials between the anode and cathode. This 2021 design prevented lithium dendrites, although it did not succeed in completely stopping their growth.

The Harvard research team’s breakthrough is that they prevented dendrites from forming by using micron-sized silicon particles in the anode, thereby confining the reaction to the surface. According to lead author Lee, the lithium metal wraps around the silicon particles. Plating and stripping on a flat surface can occur quickly, with the battery fully recharging in about 10 minutes.

Ready Battery The cell retained 80 percent of its capacity after 6,000 cycles, which was better than any pouch cell battery on the market. The technology was licensed to Eden Energy by the Harvard Office of Technology Development, a research unit at Harvard founded by Jin Lee and three other Harvard alumni. The technology is being expanded to make smartphone batteries that are much larger than pouch cell batteries. There is still time to create the ultimate solid-state battery before it becomes a commercial product. Large-scale production of such technology is very challenging.