kungfu01/Shutterstock A battery that keeps its charge for decades is likely the fantasy (whether conscious or unconscious) of more than a few people in this digital age. Devices have made life more convenient, more entertaining, and more productive, but the need to keep these tools and toys charged up is an undeniable drawback. While there are ways to optimize your phone’s battery life, there’s no way to prevent it from draining entirely. However, a team of scientists in China may ha...