Energy & Green Tech

Using sodium to make more sustainable batteries

The element lithium is used widely in batteries because it results in long-lasting, stable energy storage. However, it's a finite resource, so researchers are hard at work trying to identify alternate materials to use in ...

Engineering

Tomorrow's super battery for electric cars is made of rock

It is the battery in your electric car that determines how far you can drive on one charge and how quickly you can re-charge. However, the lithium-ion battery, the most widely used electric car battery today, has its limitations—in ...

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