High-capacity batteries could have a huge impact on products ranging from smart phones to electric cars, if only they weren't so prone to fractures and cracks. Now researchers at Stanford have developed a self-healing battery that mends itself on every charge cycle, dramatically extending its life.
Theoretically, there's easily enough wind and solar energy available to replace the 400 gigawatts of power that are currently provided by fossil fuels. But clouds roll in and winds die down — meaning we can't count on always having enough renewable energy.
All viruses have an organic outer shell, but it turns out that with a little genetic tinkering they can be trained to produce an inorganic outer shell made of gold or cobalt oxide. Angela Belcher's lab at MIT has created an entire factory of trained viruses whose genes have been reprogrammed to grow battery…