Scientists Invent A Self Heating Lithium Ion Battery
Scientists at the University of Pennsylvania Electrochemical Engine Center have invented a self heating lithium ion battery that dramatically improves cold weather performance. It uses a thin foil made of nickel that surrounds the battery and draws its power from it. The scientists choose nickel for their hearing blanket because it is inexpensive. They say their system increases the weight of the battery by only 1.5% and adds just 4% to its cost.