U.S. 45X battery-manufacturing term covering cathode materials, anode materials, anode foils, and other electrochemically active inputs.
Electrode active material sits upstream of cells and modules in the U.S. 45X manufacturing-credit vocabulary. It is broader than a simple cathode-or-anode label because the statutory definition also includes anode foils and other electrochemically active materials that contribute to energy storage.
This page is anchored in U.S. 45X. The term is not interchangeable with the EU active-material definition: 45X is designed around manufacturing-credit eligibility, while the EU Battery Regulation term supports battery-regulation material, performance, recycled-content, and due-diligence context.
26 U.S.C. § 45X - Advanced manufacturing production credit
cathode materials, anode materials, anode foils, and electrochemically active materials, including solvents, additives, and electrolyte salts that contribute to the electrochemical processes necessary for energy storage.
45X uses this term as part of the qualifying battery component definition for the advanced manufacturing production credit.
Reference: 26 U.S.C. § 45X(c)(5)(B)(i)
Public draft page. U.S. 45X manufacturing-credit term; not interchangeable with the EU active-material definition.
This term is defined in U.S. law (26 U.S.C. § 30D or § 45X) and is not part of EU regulatory vocabulary. It is included in this glossary because battery manufacturers and EV producers operating in both the EU and US markets need to navigate both legal frameworks simultaneously. Definitions in US and EU law for similar concepts (e.g. battery cell, battery module) are not identical and should not be treated as interchangeable.
Use this term for a material identifier, 45X eligibility record, supplier evidence, manufacturing step, cell or electrode link, production batch, and calculation file when U.S. battery manufacturing or production-credit-relevant evidence depends on eligible material inputs.
Electrode active material is a 45X material-eligibility control: the evidence consequence is that upstream material records need to connect to manufacturing-credit logic without being confused with finished cell, module, or pack classifications.