NOVONIX Battery Technology Glossary

Anode

The negative electrode in a lithium-ion battery is where lithium ions are stored in a charged state.

The anode is the battery’s negative electrode and is crucial for storing and releasing energy through electrochemical reactions. During charging, lithium ions leave the cathode and travel through the electrolyte to intercalate (embed) into the anode material—commonly graphite, or is otherwise stored through alloying in advanced options like silicon composites or lithium metal. During discharge, the anode undergoes oxidation, releasing electrons to the external circuit while lithium ions depart from the anode and return to the cathode. The composition and design of the anode significantly influence overall battery performance, affecting all primary functions including energy density (the amount of energy the cell can store), power output, charge rate capability, cycle life, and safety. For instance, adding silicon to increase anode capacity introduces challenges like volume expansion and increased side reactions, which must be managed through material and cell design.

NOVONIX is focused on advancing the development and production of high-performance synthetic graphite, a critical mineral used in battery materials and industrial applications. Through its expertise in materials processing and scale-up, NOVONIX supports the development of reliable, high-quality anode materials for lithium-ion batteries and other advanced technologies. The company’s work is centered on improving manufacturing consistency, material performance, and supply chain resilience for critical mineral-based products. By scaling domestic production capabilities in North America, NOVONIX is helping strengthen access to essential materials that underpin energy storage and modern industrial systems.

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Creating a Materials Supply Chain in North America

What’s the path to a cleaner, more independent battery industry in North America?

Our NOVONIX Technology Directors Harrison Kreafle (Anode) and Dr. Mark McArthur (Cathode) joined Jamie Sheard on the Take Charge podcast to explore how North America can lead the way in sustainable battery innovation while building a truly domestic materials supply chain.