Scientists in Sweden developed a new aerogel process to manufacture silicon anodes for lithium-ion batteries, promising to offer batteries with greatly increased capacity compared to those on sale today. By growing nanometer-sized particles of silicon onto graphite, the group was able to demonstrate a device that overcomes many of the challenges common to silicon as anode material. While there are still challenges in terms of stability and capacity retention, the approach could ultimately yield low-cost, large-scale production processes.
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