Germany developed fast-charging solid-state batteries, which can complete the charging process within one hour

Researchers at the FZ Jülich Research Center in Germany have found a way to quickly charge solid-state batteries. They show that its concept can make the charging current ten times higher than before, the key is to choose materials that have always been very compatible.

In this way, solid-state battery materials can cooperate well in both chemical and mechanical aspects. According to researchers at the Jülich Research Center, all components of solid-state batteries are made of different phosphate compounds.

Dr. Hermann Tempel, head of the Energy and Environmental Research Institute (IEK-9) of the Jülich Research Center, explained: “In order to allow the largest possible current to pass through the battery layer boundary, we use very similar materials to produce all battery components. The anode, cathode and electrolyte of the battery are made of different phosphate compounds, which can make the charging power more than 3C (about 50 mAh/g), which is 10 times higher than the power found in the data."

The battery designed by the researchers can be fully charged in less than an hour. Their method solves the biggest obstacle of solid-state batteries, low current, which is why solid-state batteries generally take 10 to 12 hours to fully charge. Tempel added: "The concept battery that we use a combination of favorable materials to shorten the charging time, we have applied for a patent for the concept battery."

The materials used in this concept battery are reasonably priced and relatively easy to process. In addition, the researchers said that this new solid-state battery basically does not contain toxic substances. However, now is just the beginning. Dr. Shicheng Yu said: “In the early tests, the new battery was very stable during 500 charge-discharge cycles, and 84% of the original battery capacity was preserved. It is feasible for the capacity loss to be less than 1%.” Yulixi Research Researchers at the center will further improve this fast-charging solid-state battery in the future.

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