PET Battery Separator Film from Japan
Microporous polyester film used as separators in lithium-ion batteries, classified 3920.69.00.00 if noncellular structure predominates despite porosity. Ensures electrolyte flow and safety.
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
• Provide Gurley air permeability and shutdown temperature data for separator specs
• Confirm non-woven/microcellular vs. true noncellular for 3920 vs. 3921