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GB/T 36672-2018 English PDF (GBT36672-2018)

GB/T 36672-2018 English PDF (GBT36672-2018)

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GB/T 36672-2018: Lithium-ion battery for electric mopeds and motorcycles
GB/T 36672-2018
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.140
T 85
Lithium-ion battery for electric mopeds and motorcycles
ISSUED ON: SEPTEMBER 17, 2018
IMPLEMENTED ON: APRIL 01, 2019
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms, definitions, symbols ... 5 
4 Models of battery module ... 8 
5 Battery system requirements ... 10 
6 Test methods ... 15 
7 Identification ... 19 
8 Packaging, transportation, storage ... 20 
Appendix A (Informative) Dimensions and specifications series of battery module . 21 
Appendix B (Informative) Typical structure of battery system ... 22 
Appendix C (Informative) CAN communication protocol of battery control unit (BCU)
... 24 
Appendix D (Informative) Control line connector ... 27 
References ... 28 
Lithium-ion battery for electric mopeds and motorcycles
1 Scope
This standard specifies the module model, battery system requirements, test methods,
identification, packaging, transportation, storage of lithium-ion batteries for electric
motorcycles and electric mopeds.
This standard applies to lithium-ion battery systems for electric motorcycles and
electric mopeds.
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) is
applicable to this standard.
GB 2894-2008 Safety signs and guideline for the use
GB/T 2900.41 Electrotechnical terminology - Primary and secondary cells and
batteries
GB/T 4208 Degrees of protection provided by enclosure (IP code)
GB/T 5013.1 Rubber insulated cables of rated voltages up to and including 450/750
V - Part 1: General requirements
GB/T 5023.1 Polyvinyl chloride insulated cables of rated voltages up to and
including 450/750 V - Part 1: General requirements
GB/T 18384.1-2015 Electrically propelled road vehicles - Safety specifications -
Part 1: On-board rechargeable energy storage system (REESS)
GB/T 18384.3-2015 Electrically propelled road vehicles - Safety specifications -
Part 3: Protection of persons against electric shock
GB/T 18455-2010 Package recycling marking
GB/T 19596 Terminology of electric vehicles
GB/T 19666 Flame retardant and fire resistant wires and cables
GB 21966-2008 Safety of primary and secondary lithium cells and batteries during
transport
GB/T 31467.3-2015 Lithium-ion traction battery pack and system for electric
vehicles - Part 3: Safety requirements and test methods
GB/T 31485 Safety requirements and test methods for traction battery of electric
vehicle
GB/T 31486 Technical requirements and test methods for traction battery of electric
vehicle Electrical performance
QC/T 413 Basic technical requirements for automotive electric equipment
QC/T 417.2 Road vehicles - Connections for on-board electrical wiring harnesses -
Part 2: Test methods and general performance requirements (motorcycle part)
QC/T 1067.1-2017 Road vehicles - Connections for on-board electrical wiring
harnesses - Part 1: Definitions, test methods and general performance requirements
QC/T 1067.2-2017 Road vehicles - Connections for on-board electrical wiring
harnesses - Part 2: Types and dimensions of plug terminals
QC/T 1067.3-2017 Connector used automobile wire harness and electrical device -
- Part 3: Type, dimension and special requirement of the ring terminal
3 Terms, definitions, symbols
The terms and definitions, which are defined in GB/T 2900.41 and GB/T 19596, as well
as the following terms and definitions, apply to this document. For ease of use, some
terms and definitions in GB/T 19596 are repeated below.
3.1
Secondary cell
A basic unit device, that directly converts chemical energy into electrical energy,
including electrodes, separators, electrolytes, housings, terminals. It is designed to
be rechargeable.
[GB/T 31485-2015, Definition 3.1]
3.2
Battery module
A combination of more than one single battery in series, parallel or series-parallel,
The energy code of the battery module is represented by three digits from 0 to 9, which
is one digit after the decimal point. If it does not reach hundreds place, it is padded with
0 in front. The unit is kilowatt-hour (kWh).
4.2.6 Rated voltage code of battery module X17X18X19
The rated voltage code of the battery module is represented by three digits from 0 to 9,
which are integers AND the unit is volts (V). If it does not reach hundreds place, it is
padded with 0 in front.
4.3 Example of battery module model
Example: EMD439220080014021061.
The meaning is: lithium-ion battery modules for electric motorcycles and electric
mopeds; the positive electrode material of the battery is a ternary material; the length,
width, height of the battery module are 439 mm, 220 mm, 80 mm, respectively; the
mass is 14 kg; the energy is 2.1 kWh; the rated voltage is 61 V.
5 Battery system requirements
5.1 General requirements
The battery system shall have the functions of information collection, information
transmission, safety monitoring. The battery system should have a thermal management
system, to keep the battery system working within the normal operating temperature
range. Refer to Appendix B for the typical structure of the battery system.
The arrangement of the battery system shall be convenient for inspection and
maintenance. Measures shall be taken for reliable isolation of the locations, which are
prone to impact, contamination, exposure to sunlight, water immersion. If unavoidable,
effective protection shall be taken.
5.2 Requirements for working environment
Working temperature: -20 °C ~ 60 °C. Relative humidity: 5% ~ 95%.
5.3 Electrical performance
5.3.1 Discharge capacity at room temperature
When the battery system is tested according to 6.2.1, its discharge capacity shall not be
lower than the rated capacity; it shall not exceed 110% of the rated capacity; the initial
capacity range of all test samples shall not be greater than 7% of the average initial
capacity.
5.3.2 Electrical performance of battery cell and module
The electrical properties of battery cells and modules shall meet the requirements of
GB/T 31486.
5.3.3 Cycle life
When the battery system is tested according to 6.2.2, the discharge capacity shall not
be lower than 90% of the initial capacity, when the number of cycles reaches 300; OR
the discharge capacity shall not be lower than 80% of the initial capacity, when the
number of cycles reaches 600.
5.3.4 Uniformity of temperature field
The uniformity of the internal temperature field of the battery system shall be
maintained. The temperature difference of the internal temperature field of the battery
system shall not be greater than 8 °C, when the battery system is tested in 6.2.3.
5.3.5 Rated voltage grade
The recommended rated voltage grade series, for the battery system, are 48 V, 60 V, 72
V, 84 V, 96 V, 144 V.
5.3.6 Insulation resistance of battery system
For battery systems, which have class B voltage circuits, the insulation resistance shall
meet the requirements of 5.1.4 of GB/T 18384.1-2015. Meanwhile, it shall be
monitored in real time.
5.3.7 High-voltage power failure protection
The battery system, w...
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