GB/T 34015-2017Recycling of traction battery used in electric vehicle—Test of residual capacity (English PDF)
车用动力电池回收利用 余能检测
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 12, 2017
Implementation date
February 1, 2018
Scope
GB/T 34015-2017 is the English-translated version of 车用动力电池回收利用 余能检测.
GB/T 34015-2017 specifies the terms and definitions, the symbols, the test requirements, the test procedure and the test methods for testing the residual capacity of a traction battery recovered from an electric vehicle, and applies to the cells and the modules of lithium-ion and nickel-metal hydride traction batteries.
The residual capacity is the actual capacity left after the traction battery has been taken out of the vehicle, and the symbols used are Cn for the nominal capacity in A.h and Wn for the nominal energy in W.h.
The whole test must be watched over by people who know battery testing; the environmental conditions follow 6.1.1 of GB/T 31486-2015 and the accuracy of the instruments 6.1.2 of the same standard.
The procedure runs through an appearance inspection, which stops the test if there is deformation, cracking or leakage, the collection of the battery information from its label, the determination of the first charge and discharge currents for the cell and for the module, and the determination of I5 from a constant current charge-discharge test.
The inspection methods then give the charging and the discharging capacity of the cell at room temperature, and for the module the discharging capacity at room temperature, at minus 20 C and at 55 C, each to the corresponding subclause of GB/T 31486-2015 and each at the I5 current.
It cites GB/T 19596 and GB/T 31486-2015. It was issued on 12 July 2017 and has applied since 1 February 2018.
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Document preview — GB/T 34015-2017
National Standard of the People's Republic of China
- ICS
- 43.120
- Classification
- T 47
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword3
- 1 Scope4
- 2 Normative references4
- 3 Terms and definitions4
- 4 Symbols5
- 5 Test requirements5
- 6 Test procedure6
- 7 Inspection methods8
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This Standard specifies the terms and definitions, symbols, test requirements, test procedures and test methods for test of residual capacity of recycling of traction battery used in electric vehicle.
This Standard applies to the test of residual capacity of recycling of lithium-ion traction battery and metal hydride nickel-powered battery cell, module used in electric vehicle.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 19596, Terminology of electric vehicles
GB/T 31486-2015, Technical requirements and test methods for traction battery of electric vehicle - Electrical performance
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 19596 and the following ones apply.
3.1 Residual capacity
the actual capacity remaining after the traction battery is removed from the electric vehicle
4 Symbols
The following symbols apply to this document. Cn - nominal capacity, in amperes (A·h). Wn - nominal energy, in Watts hours (W·h).
5 Test requirements
5.1 Safety requirements
5.1.1 The entire testing process shall be monitored by professionals with knowledge of battery testing.
5.2 Environmental requirements
The environmental requirements for traction battery during the process of test of residual capacity shall be in accordance with 6.1.1 of GB/T 31486-2015.
5.3 Measuring instruments, instrument accuracy requirements
The measuring instruments, instrument accuracy for traction battery during the process of test of residual capacity shall be in accordance with 6.1.2 of GB/T 31486-2015.
6 Test procedure
6.1 The test of residual capacity for traction battery used in electric vehicle shall be carried out according to the work flow shown as Figure 1.
6.2 Appearance inspection
Traction battery
6.2.1
In good light conditions, visually inspect the appearance of traction battery module, the appearance of the monomer. If there are s deformation, cracks, leakage, etc., the test of residual capacity shall not be carried out.
6.3 Information collection
6.3.1 Observe the label on the traction battery. Collect the basic information of the battery, such as the nominal voltage, nominal capacity or nominal energy, etc.
6.5 Determination of first charge and discharge currents
6.5.1 Battery cell
6.5.2 Battery module
6.5.2.1 There is a label in which cell number, nominal voltage, nominal capacity or nominal energy and battery module nominal voltage, nominal capacity or nominal energy and other information can be obtained directly.
The first charge and discharge currents shall be initially determined according to the information.
6.6 Determination of I5
Use electrical performance tester to carry out the charge-discharge test in a mode of first charge-discharge constant current. Calculate I5 according to equation (1).
7 Inspection methods
7.1 Battery cell
7.1.1 Charging
7.1.2 Discharging capacity at room temperature
The discharging capacity of battery cell at 25°C ± 2°C shall be in accordance with 6.2.5 of GB/T 31486-2015, discharging current using I5 (A).
7.1.3 Residual capacity of battery cell
The discharging capacity at room temperature measured shall be the residual capacity of battery cell at room temperature, in A·h.
7.2 Battery module
7.2.1 Charging
7.2.1.1 The charging procedures of lithium-ion battery module shall be in accordance with 6.3.4 of GB/T 31486-2015, charging current using I5 (A).
7.2.2 Discharging capacity at room temperature
The discharging capacity of battery module at 25°C±2°C shall be in accordance with 6.3.5 of GB/T 31486-2015, discharging current using I5 (A).
7.2.3 Discharging capacity at low temperature
The discharging capacity of battery module at -20°C±2°C shall be in accordance with 6.3.8 of GB/T 31486-2015, discharging current using I5 (A).
7.2.4 Discharging capacity at high temperature
The discharging capacity of battery module at 55°C±2°C shall be in accordance with 6.3.9 of GB/T 31486-2015, discharging current using I5 (A). […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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Related Standards
GB/T 19596-2017 — Terminology of electric vehicles
GB/T 34015.2-2020 — Recycling of traction battery used in electric vehicle—Echelon use—Part2: Removing requirements
GB/T 34015.3-2021 — Recovery of traction battery used in electric vehicle—Echelon use—Part 3: Echelon using requirement
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