Energy & Green Tech

Storing and utilizing energy with innovative sulfur-based cathodes

Electric vehicles and portable electronic devices such as laptops and mobile phones are unthinkable without lithium-ion batteries. The problem is highly toxic materials such as cobalt are often used for the cathodes of these ...

Engineering

Why batteries come in so many sizes and shapes

If you've looked in your utility drawer lately, you may have noticed the various shapes, sizes and types of batteries that power your electronic devices. First, there are the round, non-rechargeable button cells for your ...

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