Iddo Genuth writes "Conventional Li-Ion batteries have been known to catchfire and explode. A new, safer type of Li-Ion nanobattery that might help prevent such mishaps has been developed by researchers at Tel Aviv University. These nanobatteries should prove useful for various micro devices used for medical, military, and a range of other applications. They are 2-4 years from commercial availability."
Those who can, do; those who can't, write.
Those who can't write work for the Bell Labs Record.