NB/T 33024-2016 English PDF (NB/T33024-2016)

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NB/T 33024-2016: Test specification for lithium-ion traction battery of Electric Vehicles
NB/T 33024-2016
NB
ENERGY INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.99
T 35
Registration number. 54741-2016
Test specification for lithium-ion
traction battery of electric vehicles
ISSUED ON. FEBRUARY 05, 2016
IMPLEMENTED ON. JULY 01, 2016
Issued by. National Energy Administration
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Symbols... 5 
5 Requirements ... 5 
6 Test plan ... 9 
7 Testing rules ... 16 
Appendix A (Normative) Working condition test ... 18 
Appendix B (Normative) SOC estimation accuracy ... 23 
Foreword
This standard was proposed by the National Energy Administration.
This standard shall be under the jurisdiction and interpretation of the China
Electricity Council.
Drafting organizations of this standard. State Grid Corporation of China, the
State Grid Shandong Electric Power Company, the State Grid Shandong
Electric Power Research Institute of Electric Power, China Electric Power
Research Institute, Shandong Luneng Intelligent Technology Co., Ltd.,
Wanxiang Electric Vehicles Co., Ltd., Hefei Guoxuan Hi-Tech Power Energy
Co., Ltd., Beijing Prader New Energy Battery Technology Co., Ltd., CITIC
Guoan Menggli Power Technology Co., Ltd., Tianjin Lishen Battery Co., Ltd.,
China Electric Apparatus Research Institute.
Drafters of this standard. Su Shengxin, Shen Jianxin, Wu Bin, Ma Jianwei, Cao
Jinna, Zhang Huadong, Zhang Jian, Gao Yuming, Guo Liang, Zhang
Shuangquan, Li Zhiming, Xi Lu, Chen Qichu, Li Jianxiang, Huang Dexu, Mu
Shiyou, Ren Jie, Zhu Xiufeng, He Dilong, Zeng Jiliang, Xu Jinlong, Zhang Na,
Huang Kun, Wang Yongliang.
The recommendations and opinions of this standard during the implementation
process are fed back to the China Electricity Council Standard Management
Center (Beijing Baiguang Road Lane 2 No.1, 100761).
Test specification for lithium-ion
traction battery of electric vehicles
1 Scope
This standard specifies the requirements, test plan, test form, and
determination rules for the lithium-ion traction battery of electric vehicles.
This standard applies for the lithium-ion traction monomer batteries, battery
modules, battery boxes/battery systems of electric vehicles.
2 Normative references
The following documents are essential to the application of 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) are applicable to this standard.
GB/T 2900.41 Electrotechnical terminology - Primary and secondary cells
and batteries
GB/T 17626.2-2006 Electromagnetic compatibility (EMC) - Testing and
measurement techniques - Electrostatic discharge immunity test
GB/T 17626.5-2008 Electromagnetic compatibility - Testing and
measurement techniques - Surge immunity test
GB/T 18384.1-2015 Electrically propelled road vehicles - Safety
specifications - Part 1. On-board rechargeable energy storage system
(REESS)
GB/T 18655-2010 Vehicles boats and internal combustion engines - Radio
disturbance characteristics - Limits and methods of measurement for the
protection of on-board receivers
GB/T 19596 Terminology of electric vehicles
GB/T 29317 Terminology of electric vehicle charging/battery swap
infrastructure
QC/T 743 Lithium-ion batteries for electric vehicles
explosion, or liquid leakage.
5.4.3 Over-discharge protection
When the battery box/battery system is subject to the over-discharge protection
test in accordance with the provisions of 6.5.4, the test sample protection
element shall operate reliably and the battery box/battery system shall be free
from fire, explosion and leakage.
5.4.4 Short circuit protection
When the battery box/battery system is subject to the short-circuit protection
test in accordance with the provisions of 6.5.5, the short-circuit current is cut off
by the overcurrent protection device or the line is automatically cut off. The
battery box/battery system shall be free from fire, explosion, and leakage.
5.4.5 Overload protection
When the battery box/battery system is subject to the overload protection test
in accordance with 6.5.6, when the battery box/battery system discharge
current reaches the overload protection current value, an alarm signal shall be
issued and the circuit cut off. The storage tank/battery system shall be free from
fire, explosion, or liquid leakage; after troubleshooting, it shall have a recovery
function.
5.4.6 High temperature working test
When the battery box/battery system is subject to a high temperature working
test in accordance with 6.5.7, the temperature of the battery modules (including
the battery cells) in the test sample shall not exceed the battery temperature
limit.
5.4.7 Low temperature working test
When the battery box/battery system is tested in accordance with 6.5.8 for low
temperature working test, the system shall be charged and discharged normally.
The capacity of the sample system shall comply with the requirements of the
enterprise. The temperature and voltage of the battery modules (including the
battery cell) in the test sample shall not exceed the working limits.
5.4.8 Temperature control system failure test
When the battery box/battery system is subject to a temperature control system
failure test in accordance with 6.5.9, the battery shall be free from fire, explode
or liquid leakage.
5.4.9 Working condition test
6.5.2 Room temperature discharge capacity (initial capacity)
a) The battery box/battery system is charged in accordance with the method
of 6.5.1.
b) After it is full charged, the fully charged battery box/battery system is
allowed to stand for 2 h or more, and then discharged to the discharge
termination voltage at a certain rate of current [energy type 1I2 (A), power
type 1I1 (A)].
c) Use discharge current value and discharge time data to calculate the
capacity (in Ah); use discharge current value, discharge voltage and
discharge time data to calculate the energy (Wh or kWh).
d) The calculated value is lower than the rated value, it can be repeated once.
6.5.3 Overcharge protection
a) The battery box/battery system is charged in accordance with 6.5.1.
b) Set the constant current and constant voltage source voltage to 1.2 times
the maximum voltage of the test sample.
c) The test sample (within 24 h after full charging) continues to be charged
at the maximum continuous current specified by the enterprise’s technical
requirements. If the voltage of a single cell exceeds the charging
termination voltage or exceeds the normal protection time limit, the
charging process shall be automatically interrupted.
d) After the test, make observation for 2 h.
6.5.4 Over-discharge protection
a) The battery box/battery system is charged in accordance with 6.5.1.
b) The test sample is discharged at a certain rate of current [energy type 1I2
(A), power type 1I1 (A)].
c) If the voltage of a battery cell is lower than the discharge termination
voltage, or exceeds the normal protection time limit, the discharge process
shall be automatically interrupted.
d) After the test, make observation for 2 h.
6.5.5 Short-circuit protection
a) The battery box/battery system is charged in accordance with 6.5.1.
b) Short-circuit the positive and negative electrodes of the test sample using
6.5.9...