1 Scope
This part of GB/T 31467 specifies test methods for electrical property of high power lithium-ion traction battery pack and system for electric vehicles.
This part is applicable to lithium-ion traction battery pack and system installed on electric vehicles and mainly for the purpose of high power applications; nickel-hydrogen traction battery pack and system may also refer to this part.
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
3 Terms and Definitions
For the purposes of this document, the following terms and definitions and those defined in GB/T 19596 apply.
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Symbols and Abbreviated Terms
5 General Test Conditions
5.1 General Conditions
5.2 Accuracy Requirements for Measurement Apparatus
5.3 Data Recording
5.4 Test Preparation
6 General Test Cycles
6.1 Preconditioning Cycle
6.2 Standard Cycle
7 Basic Performance
7.1 Capacity and Energy
7.2 Power and Internal Resistance
7.3 Non-loaded Capacity Loss
7.4 Capacity Loss at Storage
7.5 Starting Power at High and Low Temperature
7.6 Energy Efficiency
Appendix A (Informative) Typical Configurations of Battery Pack and System
Appendix B (Informative) Test Items of Battery Pack and System
