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Scientists develop low cost, longer lasting batteries
Posted on: 26/Oct/2016 9:38:23 AM
Scientists from the Columbia University have developed a new method to increase the energy density of lithium batteries, an advance that may lead to longer-lasting and cheaper batteries for smartphones, tablets and electrical vehicles.
Say the researchers, The work may improve the energy density of lithium (Li-ion) batteries by 10-30 per cent. When lithium batteries are charged the first time, they lose anywhere from 5-20 per cent energy in that first cycle. Through our design, we`ve been able to gain back this loss, and we think our method has great potential to increase the operation time of batteries for portable electronics and electrical vehicles.
We were able to avoid any contact with air between unstable lithium and a lithiated electrode, so the trilayer-structured electrode can be operated in ambient air. This could be an attractive advance towards mass production of lithiated battery electrodes. The method lowered the loss capacity in state-of-the-art graphite electrodes from eight per cent to 0.3 per cent, and in silicon electrodes, from 13 per cent to minus 15 per cent.
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