GB/T 33598.3-2021 PDF EnglishUS$185.00 · In stock · Download in 9 seconds
GB/T 33598.3-2021: Recovery of traction battery used in electric vehicle - Recycling - Part 3: Specification for discharging Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 33598.3-2021: Recovery of traction battery used in electric vehicle - Recycling - Part 3: Specification for discharging---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT33598.3-2021 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.020 CCS T 09 Recovery of Traction Battery Used in Electric Vehicle – Recycling – Part 3: Specification for Discharging ISSUED ON: OCTOBER 11, 2021 IMPLEMENTED ON: MAY 01, 2022 Issued by: State Administration for Market Regulation; Standardization Administration of PRC. Table of ContentsForeword ... 3 Introduction ... 4 1 Scope ... 5 2 Normative References ... 5 3 Terms and Definitions ... 6 4 Basic Requirements ... 6 5 Discharging Process Selection and Discharging Method ... 8 6 Storage Requirements ... 13 7 Environmental Protection Measures ... 14 Recovery of Traction Battery Used in Electric Vehicle – Recycling – Part 3: Specification for Discharging1 ScopeThis Document specifies the terms and definitions, basic requirements, discharge process selection and discharge method, storage requirements and environmental protection measures of the discharging process for recycling of vehicle power battery. This Document applies to the discharging process for the recycling of power lithium- ion batteries for the retired vehicles.2 Normative ReferencesThe provisions in following documents become the provisions of this Document through reference in this Document. For the dated documents, only the versions with the dates indicated are applicable to this Document; for the undated documents, only the latest version (including all the amendments) is applicable to this Document. GB/T 8196 Safety of Machinery – Guards - General Requirements for the Design and Construction of Fixed and Movable Guards GB 8978 Integrated Wastewater Discharge Standard GB/T 11651 Code of Practice for Selection of Personal Protective Equipment GB 15630 Requirements for the Placement of Fire Safety Signs GB 16297 Comprehensive Emission Standard of Air Pollutants GB 18918 Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant GB/T 19596 Terminology of Electric Vehicles GB/T 23821 Safety of Machinery - Safety Distances to Prevent Hazard Zones Being Reached by Upper and Lower Limbs GB/T 29090 Sampling Method of Battery Scraps remaining power capacity and other characteristic parameters of the retired vehicle power lithium-ion battery. 4.2 Site Requirements 4.2.1 The work site shall be an enclosed or semi-enclosed workshop, rain-proof, ventilated and well-lit. 4.2.2 The work site shall be equipped with fire-fighting facilities and equipment in accordance with the requirements of GB 50140; and fire safety signs shall be set up in accordance with the requirements of GB 15630. 4.2.3 Fireworks are strictly prohibited on the work site; and it is forbidden to store inflammable and explosive materials; and set up warning signs. 4.2.4 The work site shall be divided into independent discharging areas, storing areas, etc., and set up area signs, the ground shall be hardened, insulated, and take anti- corrosion and anti-leakage treatment. 4.2.5 Set up protection and safety passages around the discharging area; and the safe distance for operation shall be implemented in accordance with the requirements of GB/T 23821. 4.2.6 The discharging area or site of the soaking discharging method shall be provided with an emergency collection tank for wastewater leakage. 4.3 Personnel requirements 4.3.1 Operators shall participate in the training of standardized discharging, environmental protection operation, safe operation and emergency treatment, etc.; and can take up their posts after passing the internal assessment of the enterprise. 4.3.2 Operators shall wear and use protective equipment in accordance with the requirements of GB/T 11651; and take necessary insulation protection measures. Persons who do not wear protective equipment shall not approach the work area. 4.3.3 The number of operators should be no less than 2. They shall be familiar with the operating procedures; operate in strict accordance with the discharging regulations or operating instructions; and have the ability to handle emergency events. 4.4 Requirements for equipment and facilities 4.4.1 The external circuiting discharging method shall be equipped with the following operating equipment and facilities: a) discharging equipment and facilities; b) voltage detection equipment; c) electricity detection equipment; d) temperature detection equipment; e) insulation testing equipment; f) Heat conduction and dissipation equipment. 4.4.2 The soaking discharging method and the external circuiting discharging method using conductive solution shall be equipped with containers and facilities for carrying the discharging solution, as well as with gas collecting devices and waste gas treatment facilities. 4.4.3 The accuracy of measuring instruments and apparatus used in discharging operations shall meet the requirements of GB 38031. 4.4.4 It should be equipped with mechanical automatic feeding and discharging equipment and facilities; and the discharging, liquid storage and liquid dispensing containers shall have anti-leakage and anti-corrosion functions. 4.4.5 According to the requirements of GB/T 8196, surrounding fences or channel-type protective devices shall be installed at the discharging device and each operating position.5 Discharging Process Selection and DischargingMethod 5.1 Pre-processing 5.1.1 Before discharging, the appearance inspection, voltage and insulation resistance test of power lithium-ion battery for the retired vehicle shall be carried out; and the discharging plan shall be formulated according to the inspection and test results. 5.1.2 The detection of voltage and insulation resistance shall be performed in accordance with the requirements of GB 38031; and the insulation resistance of battery packs and battery modules shall be no less than 100Ω/V. 5.1.3 When the battery pack or battery module needs to be disassembled for discharging, it shall be disassembled in accordance with the provisions of GB/T 33598. 5.2 Discharging process selection After evaluating in accordance with 5.1.1, select the discharging process according to 5.4.2.3 The appropriate discharge time shall be selected according to the basic information such as voltage and capacity obtained by testing in 5.1.1, which should be no less than 24h. 5.4.2.4 After discharging, the residual discharging solution of the battery shall be drained. 5.4.3 Discharging cut-off condition 5.4.3.1 The discharging cut-off voltage of the cell shall be no higher than 1.0V. 5.4.3.2 The cut-off voltage of the battery pack or battery module shall be determined according to Formula (1). After discharging, sample according to the requirements of GB/T 29090; and conduct voltage re-inspection on the battery. 5.4.3.3 After the cells are discharged, if the open-circuit voltage of the cells shall meet the cut-off voltage requirements of 5.4.3.1, then the discharge can be determined to be completed. 5.4.3.4 After the battery module is discharged, if the open-circuit voltage of the battery module shall meet the cut-off voltage requirement in 5.4.3.2, then the discharge can be determined to be completed. 5.4.3.5 After the battery pack is discharged, the open-circuit voltage of the battery pack shall meet the cut-off voltage requirements of 5.4.3.2. It should be disassembled according to the requirements of GB/T 33598, and the voltage of the disassembled battery module or cell shall be checked. If the battery module or battery cell meets the requirements of 5.4.3.2 or 5.4.3.1, then it can be judged that the discharge is completed. 5.4.3.6 After discharging, if the open-circuit voltage of the battery does not meet the cut-off voltage requirements, then it shall be discharged again until the cut-off voltage requirements are met.6 Storage Requirements6.1 The batteries before and after discharging shall be classified and stored, and implemented in accordance with the relevant provisions of WB/T 1061. 6.2 The positive and negative electrodes shall be insulated and protected during storage, the battery structure shall be kept intact, and the battery shall not be broken or damaged. 6.3 When there is leakage of electricity or liquid, it shall be stored in a special container with insulation and anti-leakage. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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