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Medium-high silicon content and silicon anode battery


Technology Description

Silicon is a promising anode material that can either be integrated with conventional graphite anode, or substitute for it. The capacity of silicon is roughly ten times higher than that of graphite, meaning that it holds great potential for increased energy density. Use of higher silicon content in graphite anodes (above 10-15%) still faces technical challenges. Medium silicon content ranges from 10-50%. High silicon content ranges from around or greater than 50%; both medium- and high silicon content can significantly improve anode energy density.

Relevance for Net Zero

Higher silicon content can significantly increase the energy density of batteries without requiring a change to cathode chemistry; this technology can be particularly important if deployed in the period before 2030.

Key Countries

United States, Germany

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