If your car battery has died and you need to replace it, you'll want to make sure you have the right tools and safety ...

Spray a bit of ammonia-based window cleaner ... That's the quickest way to ensure that it's time for a car battery replacement. With your battery surface nice and clean, it's time to pop open ...

Senior Researcher Insung Hwang from KERI successfully manufactured dry electrodes for high-capacity secondary batteries using the spray drying technique. Image Credit: Korea Electrotechnology Research ...