It’s not a secret that the batteries are firmly entered in the everyday life of modern people. The power supplies of our cell phones, digital cameras, camcorders, tablets and laptops – the list can be endless.
Despite the achievements of the battery industry, such as lithium batteries of any shape and any desired size, progress in this field does not stand still, and the next innovation – a flexible battery.
This battery is based on a flexible polymer. If with liquefied electrolyte could be problems related to security due to the destruction of the separating film when heated in the process of operating, in the case of the polymer the stability of the materials is very, very high.
Another type of flexible batteries that can be printed on a special printer, offers the Imprint Energy company. The company intends to use the zinc instead of the traditional lithium. Zinc-polymer flexible batteries can be used with success in a miniature medical electronics and in the autonomous sensors.
Use of zinc will make the batteries more compact, because the zinc does not react with the environment as the lithium reacts. Also, these batteries can withstand, without losing their characteristics, over a thousand cycles of charge-discharge. Such flexible and safe batteries can also be used in implantable electronics.
In turn, the largest Korean chemical company LG Chemical, one of the leading manufacturers of lithium-ion batteries in the world, a member of the LG Corporation, recently introduced to consumers of lithium-ion battery of completely new type. Novelty in appearance very similar to a conventional piece of electric cable with a diameter of about three millimeters and a length of 25 centimeters.
Chemically battery works like any lithium-ion analogue. It, like any battery, has an electrolyte, an anode, a cathode made of lithium cobalt oxide. However, the components are located in the form of flexible spirals.
Stranded copper electrode made of copper, coated with alloy of tin and nickel, serves as a cathode. This multifilamentary wire coiled around the steel rod with diameter of half a millimeter, and, upon completion of the winding, the rod is removed. The anode, which has incredible flexibility is ready.
Atop spiral of anode is located aluminum tape, then the suspension of lithium-cobalt oxide – the cathode. Thereafter, the resulting cord is placed in a protective wrap, and through a cavity that remains in the center is filled with a liquid electrolyte, and it is the final stage of a flexible battery.
Outlooks of application are simply unlimited, because, as already noted, batteries are used everywhere in the modern world.