Researchers at the University of Texas at Austin fabricated a new type of electrode for lithium-ion batteries that could unleash greater power and faster charging.
published in the journal , the scientists explain that they’ve produced thicker electrodes using magnets to create a unique alignment that sidesteps common problems associated with sizing up these critical components.The result is an electrode that could potentially facilitate twice the range on a single charge for an electric vehicle, compared with a battery using an existing commercial electrode.
“However, for thick-electrode-design-based next-generation, high-energy batteries, the restacking of nanosheets as building blocks can cause significant bottlenecks in charge transport, leading to difficulty in achieving both high energy and fast charging.”Yu explained that the key was to use thin two-dimensional materials as the building blocks of the electrode, stacking them to create thickness and then using a magnetic field to manipulate their orientations.
According to Yu, typically, thicker electrodes force the ions to travel longer distances to move through the battery, which leads to slower charging time. The typical horizontal alignment of the layers of material that make up the electrode force the ions to snake back and forth.
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