Increasing the mass of an electrode reduces power density due to the longer distance that ions and electrons must travel. Electrode designs need a rethink.

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Since their invention in the 1970s, lithium-ion batteries (LIBs) have become a cornerstone of modern society, powering everything from personal portable electronics to space satellites. This technology has made such an impact in shaping the world that its inventors, John B. Goodenough, M. Stanley Whittingham, and Akira Yoshino received the Nobel Prize in Chemistry in 2019.

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There is still significant ongoing research in improving LIB performance, as they are not only essential to meeting the requirements of the devices of the future — ones that are smaller and cheaper, with substantially longer battery lives and faster charging capabilities — they are also critical to realizing a more sustainable and greener society. Emerging technologies that rely on batteries, such as electric vehicles and grid-scale energy storage for renewable energy sources have the potential to reduce society’s dependence on fossil fuels and combat climate change. However, these applications all require batteries with higher energy densities and/or faster charge and discharge rates than are currently available. The energy and power densities of conventional LIBs that use planar […]

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