SJ/T 12063-2026Test method of electric double layer capacitor system for road vehicles (English PDF)

SJ/T 12063-2026 is the English-translated version of 道路车辆用双电层电容器系统试验方法.

SJ/T 12063-2026 is a test method standard for electric double layer capacitor systems used in road vehicles. An electric double layer capacitor, often called a supercapacitor, stores energy electrostatically and delivers it quickly, and a system of such capacitors can serve as an energy storage or power device on a vehicle. The document describes how such a system is to be tested, so that results obtained by different parties can be compared on the same basis.

It is intended for capacitor system manufacturers, vehicle makers that integrate the systems, independent test laboratories and buyers who need to verify performance. The standard is voluntary, as the /T in its code indicates. It was approved by the Ministry of Industry and Information Technology, issued on 11 March 2026 and takes effect on 1 September 2026. It is a new standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 22 pages — is available in the English PDF.

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