Posts tagged Batteries
Persons who constantly use cell phones and laptops are frequently annoyed by their battery capacity. But the researchers in University of St. Andrews, the UK have come up with a new innovative idea. The idea is no less short than amazing; to exceed the energy capacity of the battery they let the batteries ‘breathe’ oxygen from the air.
The major obstacle to increase the energy density an ordinary lithium ion battery is the anode, lithium cobalt oxide is bulky and heavy. The energy capacity can be increased by pushing the amount of lithium ions in the electrolyte. But how can it be done? The researchers have come up with the answer. The lithium cobalt oxide anode is replaced by the spongy material packed with lithium and porous carbon. When the battery is discharged the oxygen from the air comes in contact with lithium through the porous carbon and reacts with the lithium to form lithium oxide. This lithium oxide is now officially the anode of the battery and due to the non reactive nature of the porous carbon in the reaction, the number of lithium ions released is considerably increased and so is the energy capacity. This new technology is still under research and will be available in the market soon.