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GB/T 31467.1-2015 (GB/T31467.1-2015)

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GB/T 31467.1-2015: PDF in English (GBT 31467.1-2015)

GB/T 31467.1-2015
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.080
T 47
Lithium-ion Traction Battery Pack and System
for Electric Vehicles - Part 1. Test Specification
for High Power Applications
(ISO 12405-1.2011, Electrically Propelled Road Vehicles - Test Specification for Lithium-Ion
Traction Battery Packs and Systems - Part 1. High-Power Applications, NEQ)
ISSUED ON. MAY 15, 2015
IMPLEMENTED ON. MAY 15, 2015
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China.
Table of Contents
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 4 
4 Symbols and abbreviated terms ... 6 
5 General test conditions ... 6 
5.1 General conditions ... 6 
5.2 Accuracy requirements of test instruments ... 8 
5.3 Data record ... 8 
5.4 Preparation for testing ... 8 
6 General test cycle ... 9 
6.1 Pretreatment cycle ... 9 
6.2 Standard cycle ... 10 
7 Basic performances ... 10 
7.1 Capacity and energy ... 10 
7.2 Power and internal resistance ... 12 
7.3 No-load capacity loss ... 17 
7.4 Capacity loss during storage ... 18 
7.5 High and low-temperature start-up power ... 19 
7.6 Energy efficiency ... 20 
Annex A (Informative) Typical Structure of Battery Pack and Battery System 22 
Annex B (Informative) Test Items of Battery Pack and Battery System ... 24 
Foreword
GB/T 31467 Lithium-ion traction battery pack and system for Electric vehicles is divided
into 3 parts.
— Part 1. Test specification for High power applications;
— Part 2. Test specification for High energy applications;
— Part 3. Safety requirements and test methods.
This Part is Part 1 of GB/T 31467.
This Part is drafted based on the provisions provided in GB/T 1.1-2009.
This Part uses re-drafting method by referring to ISO 12405-1.2011 “Lithium-ion Traction
Battery Pack and System for Electric Road Vehicles - Part 1. High Power Applications”;
the consistent degree is not equivalent to ISO 12405-1.2011.
This Part was proposed by Ministry of Industry and Information Technology of the
People's Republic of China.
This Part shall be under the jurisdiction of National Technical Committee of Auto
Standardization (SAC/TC 114).
Drafting organizations of this Part. Beijing CATARC Technology Center, Beijing Institute of
Technology, China Electronics Technology Group Corporation No.18 Research Institute,
China North Vehicle Research Institute, China FAW Group Co., Ltd., Dongfeng Motor
Group Co., Ltd. Technology Center, Ningde New Energy Technology Co., Ltd, Tianjin
Lishen Battery Co., Ltd., CITIC Guoan MGL Power Source Technology CO., LTD., Hubei
Camel Storage Battery Research Institute Co., Ltd., Beiqi Foton Motor Co., Ltd., Shanghai
Motor Vehicle Inspection Center, Qoros Automotive Co., Ltd., Zhejiang Godsend Power
Technology Co., Ltd., Jiangsu Chunlan Clean Energy Research Institute Co., Ltd., Pan
Asia Technical Automotive Center Co., Ltd. and Shanghai CENAT Energy Co., Ltd.
Main drafters of this Part. Meng Xiangfeng, Wang Zhenpo, Wang Cheng, Xiao Chengwei,
Wang Fang, Cai Yi, Hu Daozhong, Pei Xiaojuan, Zhang Na, Zhang Jianhua, Liu Shiqiang,
Liu Xiaokang, He Xiangyun, Liu Zhengyao, Zhao Shuhong, Zhu Shunliang, Wang
Honggmei, Zhu Cheng, Sun Jianping, Wang Bei, Kong Lingguo, Qiu Jie and Guo Yan.
Lithium-ion traction battery pack and system for electric
vehicles - Part 1. Test specification for high power
applications
1 Scope
This Part of GB/T 31467 specifies the test methods for electrical performance of
high-power lithium-ion traction battery pack and system for electric vehicles.
This Part applies to lithium-ion traction battery pack and system that are mounted on
electric vehicles and that are mainly for the purpose of high-power applications; Ni-MH
traction battery pack and system for the purpose of high power applications may refer to
this Part for implementation.
2 Normative references
The following documents are indispensable for application of this document. For the dated
documents so quoted, only the dated versions apply to this document. For the undated
documents so quoted, the latest versions (including all modification sheets) apply to this
document.
GB/T 19596 Terminology of electric vehicles
3 Terms and definitions
For the purpose of this Part, the terms and definitions given in GB/T 19596 AND the
following apply.
3.1
battery electronics
Electronic device that collects and possibly monitors thermal or electric data of cells or cell
assemblies; it may contains electronics for cell balancing, if necessary.
Note. The battery electronics can include a cell controller. The functionality of cell balancing can be
controlled by the cell electronics or it can be controlled by the BCU.
3.2
high energy traction battery
Traction battery that is designed for the purpose of high energy application.
3.9
high power traction battery
Traction battery that is designed for the purpose of high power application.
3.10
high voltage
A voltage of which the maximum working voltage is greater than 30 V a.c.(r.m.s.) AND
lower than or equal to 1000 V a.c.(r.m.s.); or greater than 60 V d.c. AND lower than or
equal to 1500 V d.c.
3.11
low voltage
A voltage of which the maximum working voltage is not greater than 30 V a.c.(r.m.s.), or
not greater than 60 V d.c.
4 Symbols and abbreviated terms
For the purpose of this document, the following symbols and abbreviated terms apply.
nC. discharging rate. equal to n time(s) of discharge capacity for 1h;
I'max (SOC, T, t). Maximum permissible discharge current for a SOC, at test
environment temperature T and pulse duration t;
Imax (T). Maximum permissible continuous discharge current under specified test
environment temperature;
η. Efficiency;
RT. room temperature;
SOC. state of charge.
5 General test conditions
5.1 General conditions
shall be served as the test results or the basis for calculation.
5.4.2 Preparation of battery system
The high voltage cells, low voltage cells, cell assemblies, cooling devices and the BCU of
battery system shall be connected to the test bench equipment. The active and passive
protections of battery pack shall be activated. The test parameters and conditions of the
test bench equipment shall fulfill the requirements prescribed in the test procedure; the
working parameters of battery system shall be within the reasonable limit range. The
value limits shall be transmitted to the test bench equipment by the BCU via bus
communication. The cooling device shall be operational according to the controls of the
BCU. If necessary, the BCU program shall be adapted by the manufacturer of battery
system for the requested test procedure. During the test of battery system, the battery
system transmits the parameters of battery state and working limits to the test bench
equipment via bus communication; then the test bench equipment controls the test
process according to the battery state and working limits. The current, voltage, capacity or
energy parameters detected by the test bench equipment shall be served as the test
results or the basis for calculation. The uploaded parameters of battery system shall not
be taken as the test result or the basis for test.
5.4.3 Mass and volume of test samples
Use measuring tool to measure the appearance dimensions of test samples; calculate the
volume of test samples in L. Use weighing apparatus to measure the mass of test
samples in kg. If test samples contain forced cooling system, then measurement or
calculation of the mass and volume shall include cooling system, e.g. cooling pipelines,
etc. If cooling system uses liquid cooling mode, then the weight of coolant shall be
counted. If cooling system of test samples integrates with the vehicle or other systems
after cooling, then only the mass and volume related with test samples are taken into
account. When it is difficult to measure, the data and data test basis provided by the
manufacturer ma...
......
 
(Above excerpt was released on 2015-11-07, modified on 2021-06-07, translated/reviewed by: Wayne Zheng et al.)
Source: https://www.chinesestandard.net/PDF.aspx/GBT31467.1-2015