New week, new spirit! Hello Monday, everyone... Today's topic is about the future battery technology. We know that the world today is very mobile. Everywhere, people use mobile phones, laptops and other gadgets for various purposes. When my friends went traveling to Harbin (a SUPER COLD place in northern part of China), they were really irritated by their mobile phone's battery. Though they brought power bank, it was not enough, because the extreme cold weather devoured their battery capacit...