Great news: Panasonic not only started mass producing laptop type battery with a record setting rating of 3.1 amp hours this December, but in the next few years, will make these cells with up to 4.0 amps in 2013. Yowzer.
Part of the secret is to use nickel instead of carbon for the positive terminal in each cell. The previous record at Panasonic for type cells were 2.9 amp hours, and a quick search shows that most are in the 2.2 amp range.
Battery tech still remains one of the slowest developing sectors in technology, which is why Obama put billions of dollars in grant money towards its research. And why this is great news for all. [Panasonic]