Beyond lithium: Sodium-based batteries may power the future
Peng Bai will work toward sustainable and efficient energy storage technology
Batteries have become so integral to everyday life – powering everything from mobile devices to electric vehicles and renewable energy storage systems – that people often don’t even think about them. But our increasing reliance on batteries has made considerations like their sustainability and ability to hold charge in a range of environments and the ability to reliably source materials needed to produce them urgent considerations.
Peng Bai, associate professor of energy, environmental & chemical engineering in the McKelvey School of Engineering at Washington University in St. Louis, received a two-year, $550,000 Partnerships for Innovation – Technology Translation award from the National Science Foundation to support his work on sodium-based batteries. The award will allow Bai to expand his prior NSF-funded research to scale up and commercialize his sodium battery technology.
Bai’s sodium-based batteries deliberately move away from lithium and other rare elements used in traditional batteries. Sodium, a more abundant and easier to process material, promises lower production costs and alleviated supply chain vulnerabilities, fostering a more sustainable and economically efficient energy landscape. Sodium-based batteries may also offer enhanced fast-charging capabilities and improved operation in cold environments, expanding their potential application in large-scale energy storage and portable electronics, including electric vehicles.
The project, “Development of high-performance long-life electrodes for sustainable sodium-based batteries,” has three main goals: ensuring consistency in larger production batches, developing greener manufacturing processes using water instead of toxic solvents, and optimizing production processes at a commercial scale. These advancements would pave the way for sodium-based batteries to make their way into everyday technologies within five years, Bai says.
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