Amprius Si-Nanowire Anode 4500mAh Cell from Mexico
Silicon nanowire composite anode lithium-ion cell achieving 4500mAh in 18650 format, shattering traditional graphite limits. >400Wh/kg specific energy rivals primary lithium cells. HTS 8507.60.00 classification unchanged by anode innovation.
Duty Rate — Mexico → United States
28.4%
Rate breakdown
9903.94.0525%Except for products described in headings 9903.94.06, 9903.94.32, 9903.94.33, 9903.94.42, 9903.94.43, 9903.94.44, 9903.94.45, 9903.94.52, 9903.94.53, 9903.94.54, 9903.94.55, 9903.94.62, 9903.94.63, 9903.94.66 and 9903.94.67, automobile parts, as provided for in subdivision (g) of U.S. note 33 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Si-anode cells exhibit 300% first-cycle loss; document irreversible capacity on datasheet
• Nanostructure fragile; specify maximum crush force for UN38.3 compliance
• High first-cycle coulombic efficiency (>85%) verifies commercial nanowire technology