T/DZJN 37-2021 Active Group standards

T/DZJN 37-2021 Method for Sorting Modules of Retired Power Batteries

T/DZJN 37-2021

Publish Date: 2021-08-09 Implement Date: 2021-10-18 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/DZJN 37-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Fuel oil

ICS Name: Recycling

Publish Date: 2021-08-09

Implement Date: 2021-10-18

Scope

Main Technical Content: 4.1 Safety 4.1.1 Personnel Requirements The sorting process should be conducted by professionals with knowledge of battery-related technologies. Operators must wear appropriate protective gear in accordance with GB/T 11651-2008, such as safety helmets, insulated gloves, safety shoes, protective masks, and acid-resistant aprons. Metal watches and jewelry are prohibited, and unqualified personnel are not allowed to approach the work area or operate equipment. Operators must master emergency response and first aid methods, undergo pre-job and regular training, and pass assessments. 4.1.2 Site Environmental Requirements The site should be independently constructed, and the design of the factory and production lines should meet fire safety regulations and fully consider occupational health. Energy-saving measures such as recycling and reusing electricity should be adopted. The workshop should be equipped with ventilation systems, wastewater treatment facilities, and waste collection systems. 4.1.3 Operational Requirements If there are active protection circuits on the decommissioned power battery modules, they should be removed before operation. The tools used, including insulated screwdrivers, insulated wrenches, and insulated sockets, must be insulated. 4.2 Accuracy 4.2.1 In accordance with the requirements of GB 38031-2020 Section 6.2 on the accuracy of measurement instruments and meters, ensure the accuracy of the total voltage of the modules during sorting. 4.2.2 In accordance with the requirements of GB 38031-2020 Section 6.2 on the accuracy of measurement instruments and meters, ensure the accuracy of the single-cell voltage and maximum voltage difference between cells during sorting. 4.2.3 In accordance with the requirements of JJF 1620-2017 Section 5.1 on battery internal resistance, ensure the accuracy of the internal resistance of the modules during sorting, which includes DC internal resistance and AC internal re