GB/T 45099-2024 English PDF (GB/T45099-2024)

GB/T 45099-2024: Technical requirements for completion and acceptance of traction battery maintenance
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GB/T 45099-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.180
CCS R 16
Technical Requirements for Completion and Acceptance of
Traction Battery Maintenance
ISSUED ON: NOVEMBER 28, 2024
IMPLEMENTED ON: MARCH 1, 2025
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 4
4 Maintenance Operation Requirements ... 5
5 Completion Inspection Requirements ... 7
6 Quality Assurance ... 9
Appendix A (informative) Battery Maintenance Inspection Records ... 10
Appendix B (informative) Battery Maintenance Information Record ... 13
Technical Requirements for Completion and Acceptance of
Traction Battery Maintenance
1 Scope
This document specifies the maintenance operation requirements, completion inspection
requirements and quality assurance for traction batteries.
This document applies to unpacking maintenance of traction batteries for electric vehicles.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 16739.1 Operating Conditions for Automobile Maintenance and Repair Trade - Part 1:
The Enterprise for Automobile Maintenance and Repair
GB 18384 Electric Vehicles Safety Requirements
GB/T 19596 Terminology of Electric Vehicles
GB/T 44510 Technical Requirement for Maintenance and Repair of New Energy Vehicle
3 Terms and Definitions
The terms and definitions defined in GB/T 19596, and the following are applicable to this
document.
3.1 traction battery; propulsion battery
A storage battery that provides energy for the electric vehicle’s power system.
[source: GB/T 19596-2017, 3.3.1.1.1.1]
3.2 secondary cell
The basic unit device for the interconversion between chemical energy and electrical energy.
NOTE: usually it includes electrodes, diaphragm, electrolyte, casing and terminals, and is designed
to be rechargeable.
overtemperature, abnormal insulation, leakage, enclosure deformation, or water immersion, it
shall be handled in accordance with the requirements of the automobile maintenance technical
information.
4.1.4 Battery maintenance operation shall be carried out in accordance with the maintenance
items determined by the incoming inspection and battery unpacking inspection and diagnosis.
During the maintenance process, process inspection shall be carried out and records shall be
kept in accordance with the maintenance items.
4.1.5 After battery maintenance, the quality inspection on completion shall be carried out in
accordance with Chapter 5, and records shall be kept in accordance with Table A.2.
4.1.6 Battery maintenance enterprises shall keep records of battery maintenance and
replacement information, and fill them out in accordance with Appendix B.
4.2 Battery Disassembly and Loading
4.2.1 The rated load-bearing capacity of battery lifting and hoisting equipment shall meet the
battery lifting and hoisting requirements. Before lifting and hoisting, the contact surface
between the equipment and the battery shall be insulated.
4.2.2 Before disassembling the battery, the vehicle shall be secured, the battery guard plate shall
be removed, the battery high-voltage maintenance switch shall be disconnected, and the cooling
pipelines, low-voltage connectors, high-voltage connectors, equipotential wires, battery
enclosure fixing bolts, etc. shall be removed in sequence.
4.2.3 When disassembling the battery, do not violently pull the various wire harnesses or
connectors or excessively bend them.
4.2.4 After the battery is disassembled, it shall be insulated, and the installation location of the
battery enclosure shall be recorded. When loading the battery on the vehicle, it shall be installed
in accordance with the recorded location.
4.2.5 Battery disassembly and loading shall be carried out using the following different tools,
equipment and methods in accordance with the battery installation mode or installation location:
a) If the battery is located under the chassis, use battery lifting equipment to place it near
the force point under the battery, and ensure that the battery force point corresponds
to the force-bearing point of the lifting equipment;
b) If the battery is located above the chassis, fix the lifting equipment on the battery;
c) If the battery enclosure cover is inverted, use a flip fixture to secure and support the
battery.
4.2.6 When loading the battery on the vehicle, the battery shall be lifted or hoisted so that it is
aligned with the battery installation position locating pin, and the vehicle body locating pin and
battery locating hole shall correctly match. The battery shall be loaded in the reverse order of
its disassembly and, if necessary, filled with coolant of the specifications and models specified
in the automobile maintenance technical information.
4.3 Battery Unpacking and Packaging
4.3.1 Before unpacking the battery, the battery enclosure shall be tested for air tightness in
accordance with the requirements of the automobile maintenance technical information.
4.3.2 Before unpacking the battery, the battery coolant shall be pumped and drained in
accordance with the maintenance items.
4.3.3 The battery unpacking method shall be used in accordance with the battery packaging
form.
4.3.4 After unpacking the battery, it shall be ensured that the high-voltage circuit is disconnected.
If there is a built-in high-voltage maintenance switch, the high-voltage maintenance switch shall
be disconnected first, and insulation treatment shall be performed.
4.3.5 After unpacking the battery, the internal insulation test shall be carried out on the battery,
and the insulation resistance value shall satisfy the provisions specified in the automobile
maintenance technical information.
4.3.6 Before packaging the battery, the internal components of the battery enclosure shall
comply with the provisions of Chapter 5.
5 Completion Inspection Requirements
5.1 Basic Requirements
5.1.1 The appearance of the battery pack shall meet the technical requirements for the
appearance of traction battery systems in GB/T 44510.
5.1.2 The high-voltage connectors of the battery module (hereinafter referred to as the “module”)
shall be properly installed and the contact surfaces shall be clean.
5.1.3 The fuse shall not be blown, the relay shall not be stuck, and the lock of the fuse cover
shall be locked and effective. The performance parameters of fuses, relays and pre-charging
resistors shall be consistent with those specified in the automobile maintenance technical
information.
5.1.4 The grounding point shall be clean and free of rust, and the grounding connection shall
be reliable.
5.1.5 The hardware mounting bracket of the battery management module shall be fixed intact
and the installation direction shall be correct.
5.1.6 In addition to meeting the technical requirements for cooling systems of traction battery
technical information.
5.2.2.2 The insulation resistance between the input and output of other high-voltage wire
harnesses and connectors of the battery and their casings shall comply with the provisions of
the automobile maintenance technical information.
5.2.3 Air tightness
The air tightness of the battery enclosure and battery cooling system shall comply with the
provisions of the vehicle maintenance technical information.
5.2.4 Potential equalization
The potential equalization used to protect exposed conductive parts in direct contact with Class
B voltage circuits shall comply with the provisions of GB 18384.
5.2.5 Working conditions
5.2.5.1 After the battery is loaded on the vehicle, the on-board instrument shall have no battery
fault alarm. When the battery data is read by instruments and equipment, there shall be no
battery fault information. The battery management system software version No. shall be the
applicable version.
5.2.5.2 There shall be no alarm in insulation resistance monitoring.
6 Quality Assurance
6.1 After the battery maintenance, if the battery passes the quality inspection on completion,
the maintenance quality inspection personnel shall issue a motor vehicle maintenance
completion exit-factory certificate.
6.2 The warranty period for the unpacking maintenance of batteries shall be no less than 100
days or 20,000 km of vehicle mileage, whichever comes first, commencing from the date of
completion and exiting the factory.
GB/T 45099-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.180
CCS R 16
Technical Requirements for Completion and Acceptance of
Traction Battery Maintenance
ISSUED ON: NOVEMBER 28, 2024
IMPLEMENTED ON: MARCH 1, 2025
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 4
4 Maintenance Operation Requirements ... 5
5 Completion Inspection Requirements ... 7
6 Quality Assurance ... 9
Appendix A (informative) Battery Maintenance Inspection Records ... 10
Appendix B (informative) Battery Maintenance Information Record ... 13
Technical Requirements for Completion and Acceptance of
Traction Battery Maintenance
1 Scope
This document specifies the maintenance operation requirements, completion inspection
requirements and quality assurance for traction batteries.
This document applies to unpacking maintenance of traction batteries for electric vehicles.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 16739.1 Operating Conditions for Automobile Maintenance and Repair Trade - Part 1:
The Enterprise for Automobile Maintenance and Repair
GB 18384 Electric Vehicles Safety Requirements
GB/T 19596 Terminology of Electric Vehicles
GB/T 44510 Technical Requirement for Maintenance and Repair of New Energy Vehicle
3 Terms and Definitions
The terms and definitions defined in GB/T 19596, and the following are applicable to this
document.
3.1 traction battery; propulsion battery
A storage battery that provides energy for the electric vehicle’s power system.
[source: GB/T 19596-2017, 3.3.1.1.1.1]
3.2 secondary cell
The basic unit device for the interconversion between chemical energy and electrical energy.
NOTE: usually it includes electrodes, diaphragm, electrolyte, casing and terminals, and is designed
to be rechargeable.
overtemperature, abnormal insulation, leakage, enclosure deformation, or water immersion, it
shall be handled in accordance with the requirements of the automobile maintenance technical
information.
4.1.4 Battery maintenance operation shall be carried out in accordance with the maintenance
items determined by the incoming inspection and battery unpacking inspection and diagnosis.
During the maintenance process, process inspection shall be carried out and records shall be
kept in accordance with the maintenance items.
4.1.5 After battery maintenance, the quality inspection on completion shall be carried out in
accordance with Chapter 5, and records shall be kept in accordance with Table A.2.
4.1.6 Battery maintenance enterprises shall keep records of battery maintenance and
replacement information, and fill them out in accordance with Appendix B.
4.2 Battery Disassembly and Loading
4.2.1 The rated load-bearing capacity of battery lifting and hoisting equipment shall meet the
battery lifting and hoisting requirements. Before lifting and hoisting, the contact surface
between the equipment and the battery shall be insulated.
4.2.2 Before disassembling the battery, the vehicle shall be secured, the battery guard plate shall
be removed, the battery high-voltage maintenance switch shall be disconnected, and the cooling
pipelines, low-voltage connectors, high-voltage connectors, equipotential wires, battery
enclosure fixing bolts, etc. shall be removed in sequence.
4.2.3 When disassembling the battery, do not violently pull the various wire harnesses or
connectors or excessively bend them.
4.2.4 After the battery is disassembled, it shall be insulated, and the installation location of the
battery enclosure shall be recorded. When loading the battery on the vehicle, it shall be installed
in accordance with the recorded location.
4.2.5 Battery disassembly and loading shall be carried out using the following different tools,
equipment and methods in accordance with the battery installation mode or installation location:
a) If the battery is located under the chassis, use battery lifting equipment to place it near
the force point under the battery, and ensure that the battery force point corresponds
to the force-bearing point of the lifting equipment;
b) If the battery is located above the chassis, fix the lifting equipment on the battery;
c) If the battery enclosure cover is inverted, use a flip fixture to secure and support the
battery.
4.2.6 When loading the battery on the vehicle, the battery shall be lifted or hoisted so that it is
aligned with the battery installation position locating pin, and the vehicle body locating pin and
battery locating hole shall correctly match. The battery shall be loaded in the reverse order of
its disassembly and, if necessary, filled with coolant of the specifications and models specified