Batteries will always limit the capabilities of our portable electronics so it’s always good to see articles about groups who are trying to solve the battery life problem. This article talks about a group from MIT who have created a new lithium battery which uses air (oxygen) to create lithium peroxide, which can be broken down to create electricity. Apparently they have been able to create batteries that hold 4 times the electricity compared to current batteries of the same weight.

It would definitely be nice to have a laptop or cell phone battery with 4 times the life.

http://www.scientificamerican.com/article.cfm?id=a-better-lithium-battery