Fast Charge New Discovery NCSU Research Finds Thin Water Layer Materials Store Faster

Extending battery life has become a key breakthrough in battery research, but how to store and transfer battery energy more quickly? This is what the researchers at North Carolina State University (NCSU) want to solve. They produced a material, layered crystalline tungsten oxide hydrate, using a thin atomic water layer to regulate charge transfer rate.

The study was published in the recent issue of Chemistry of Materials. According to previous research, crystalline tungsten oxide is a kind of battery material with large capacity storage energy, but there is not much bright spot for energy storage speed. The researchers compared the two high-density battery materials: crystalline tungsten oxide and layered crystalline tungsten oxide hydrate. The layered crystalline tungsten oxide hydrate is composed of a crystalline tungsten oxide layer separated by an aqueous layer of an atomic layer. When charging the two materials for 10 minutes, the researchers found that normal tungsten oxide stores more energy than hydrates; but when charged for 12 seconds, hydrates store more energy than crystalline tungsten oxide. At the same time, the researchers also said that hydrates store energy faster, while also reducing waste heat.

NCSU expects a layered crystalline tungsten oxide hydrate battery to accelerate electric vehicles faster. However, this technology is not perfect at this stage. After about 10 minutes of charging, the normal tungsten oxide has actually stored more power. Even so, the technology has its place to be, and automakers can devote more choices to nonlinear acceleration, so it is not a problem to fully realize zero emissions in the future.

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