Two takes on lithium-ion batteries

Lithium-ion batteries have transformed our lives. Without them, we wouldn't have laptop computers or cell phones—at least, not the long-lived, lightweight kindwe're used to—and in the near future they may become more important yet. With sufficiently powerful batteries, renewable energy and electric cars become viable, but we first need to overcome some serious technological challenges. At the recent American Physical Society March Meeting in Baltimore, two Berkeley Lab researchers highlighted different aspects of the problem.

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