9902.16.22 - Lithium thionyl chloride batteries, cylindrical in shape, measuring 30.48 mm or more but not over 152.4 cm in length, having an outer diameter of 10.16 mm or more but not over 127 mm, each certified by the importer as containing a lithium anode and a liquid cathode comprising a porous carbon current collector filled with thionyl chloride (SOCl2) (provided for in subheading 8507.60.00)

This HTS category, 9902.16.22, specifically covers lithium thionyl chloride batteries that meet precise physical and compositional criteria. These batteries are cylindrical and are further defined by their length, which must be 30.48 mm or more but not exceeding 152.4 cm, and their outer diameter, ranging from 10.16 mm to 127 mm. Crucially, each battery must be certified by the importer as containing a lithium anode and a liquid cathode composed of thionyl chloride (SOCl2) within a porous carbon current collector. This classification is provided for under subheading 8507.60.00, indicating its primary classification relates to primary lithium batteries.

Given that this is a leaf node within the HTS database and does not have further subdivisions, the emphasis for classification professionals lies in the detailed specifications provided in the description. Unlike broader categories that might cover general battery types or electrical components, 9902.16.22 is highly specific. It distinguishes itself from other battery classifications by its unique chemistry (lithium thionyl chloride), specific anode and cathode composition, and defined physical dimensions. Professionals must ensure all enumerated characteristics, including the importer certification, are met to correctly classify goods under this provision. The context within Chapter 99 signifies that this is a temporary or specialized classification, potentially related to trade agreements or specific import restrictions, rather than a permanent part of the core HTS structure.