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Lithium-air batteries have advantages over lithium-ion batteries in terms of weight and complexity, and their potential storage capacity is ten times that of the best lithium-ion batteries. However, a major drawback is its degraded performance after repeated charge and discharge. Now, researchers report that they have developed the first stable and reliable lithium-air battery. Although it is still far from practicality because it uses gold, the future of lithium-air battery electric vehicles will be close to today's gasoline. car.
The researchers replaced the common carbon-based cathode materials with inert gold nanoparticles and replaced the polycarbonate with an electrically conductive solvent, dimethyl sulfoxide (DMSO), as the electrolyte. The results show that after 100 times of charge and discharge cycles, the new battery still achieved 95% of its original performance.
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