Batteries can also be as thin as paper
An Israeli company called Power Paper invented a paper battery which is thin like a piece of paper. The method of power generation of the paper battery is similar to the general battery , but it also uses electrolytes and electrodes to conduct current, making the electrolyte and electrodes into a unique ink, the battery can be directly printed on the paper , unlike ordinary batteries that require the container to install the liquid electrolyte and electrodes. This does not require a battery container, the shape and size can flex freely.
Paper battery is only half a millimeter thick, that is as thick as packaging cardboard of milk boxes. As the Paper battery is a piece , therefore, its power capacity is not in accordance with its size, but in accordance with the area calculation. To provide as much as AA-type alkaline batteries for electricity and the size of the paper battery must have a 1 square feet.
Because this battery can be manufactured in an ordinary environment, without special manufacturing equipment, manufacturing cost is very cheap, about one penny per square foot. The voltage of this battery is 1.5 volts, which are equivalent to the batteries generally used to operate watches , expired two and a half year.
A thin paper battery can also be caught in the smart card inside, so that its functions are greatly increased. Join the smart card can increase power display, or even can be converted into a pocket diary. To join the wisdom tickets of the battery can also have anti-counterfeiting features, or even a voice to guide you to position it. And e-merchants can also combine with the paper battery and computer chip to create a more portable appliances, such as the card-type mobile phone, the body's "computer" you can wear and so on.
As the paper battery has environmentally friendly materials,adding cardboard products can be battery-use of throwing things away ,it is very convenient. The current paper battery can not charge the battery, but the company is ongoing research in this area.