Sony working on sulfur-based batteries that last 40% longer
Sony created the first lithium-ion batteries in commercial products, and now the company is working on more efficient energy sources. New batteries will store 40% more energy than currently available. To achieve this, Sony will not use lithium – despite its advantages, the material is too expensive to mass produce batteries with high capacity. Furthermore, the element becomes combustible after prolonged storage.
New batteries rely on sulfur-based electrodes and magnesium. Magnesium is significantly less expensive than lithium, which will reduce the cost of the batteries when they are ready for market distribution. This will happen no earlier than 2020, and the first devices that will benefit from the new technology will be smartphones.