Low-Surface-Area Modified Graphite Spheres for Fast-Charging Anodes from Japan
Spherical graphite with proprietary silane surface treatment achieving <1.5 m²/g BET surface area for reduced SEI formation in fast-charging lithium batteries. Falls under HTS 3801.10.5010 as surface-modified artificial graphite powder. Treatment minimizes irreversible capacity loss during high-rate cycling.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• BET surface area test reports critical; values >3.0 m²/g may disqualify from 'surface-modified' specific subheading
• Declare LC50 data if silane treatment involves volatile organics to address potential hazmat classification
• Use incoterms clearly separating quality inspection from customs valuation to prevent disputes