QC/T 743-2006 PDF English
US$85.00 · In stock · Download in 9 secondsQC/T 743-2006: Lithium-ion batteries for electric vehicles Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Obsolete
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| QC/T 743-2006 | English | 85 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Lithium-ion batteries for electric vehicles
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: QC/T 743-2006
QC/T 743-2006: Lithium-ion batteries for electric vehicles---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QCT743-2006
QC
AUTOMOTIVE INDUSTRY STANDARD
Lithium-ion Batteries for Electric Vehicles
Issued on. MARCH 7, 2006
Implemented on. AUGUST 1, 2006
Issued by. National Development and Reform Commission
National Development and Reform Commission of PRC
NOTICE
2006 No.18
89 industry standards (number and title of standards refer to Attachment) such as Blanks
for cemented carbide sealing ring, etc. have been approved by National Development and
Reform Committee, in which, 40 standards are non-ferrous metal industry standards, 17
standards are coal industry standards, 6 standards are textile industry standards, 7
standards are building materials industry standards, 1 standard is physical distribution
industry standard, 18 standards are auto industry standards.
Since August 1, 2006, above standards will be implemented.
Table of Contents
Foreword... 5
1 Scope... 6
2 Normative References... 6
3 Terms, Definitions and Symbols... 6
4 Classification... 7
5 Requirements... 7
6 Test Methods... 10
7 Inspection Rules... 20
8 Marking, Packaging, Transportation and Storage... 22
Annex A (Normative) Consistency analysis method... 24
Annex B (Normative) Test steps of simple simulation working condition... 26
Foreword
Annex A and Annex B of this Standard are normative.
This Standard was proposed by National Technical Committee on Road Vehicles of
Standardization Administration of China.
This Standard shall be under the jurisdiction of National Technical Committee on Road
Vehicles of Standardization Administration of China.
Main drafting organizations of this Standard. National Development Center of High-tech
Green Materials, North Auto Quality Supervision and Inspection Laboratory, and 18th
Research Institute of CETC.
Main drafters of this Standard. Wu Feng, Wang Jiqiang, Wang Zidong, Xiao Chengwei,
Mao Licai, Zhao Shuhong, Li Li, and Chen Renjie.
Lithium-ion Batteries for Electric Vehicles
1 Scope
This Standard specifies the requirements, testing methods, inspection rules, symbols,
package, transport and storage of Li-ion battery used in electric vehicles.
This Standard is applicable to lithium-ion batteries for electric vehicles of which the
nominal voltage of cell is 3.6V and modules are n×3.6V (n is number of battery).
2 Normative References
The articles contained in the following documents have become part of this standard when
they are quoted herein. For the dated documents so quoted, all the modifications
(excluding corrections) or revisions made thereafter shall not be applicable to this
Standard. For the undated documents so quoted, the latest editions shall be applicable to
this Standard.
GB/T 2900.11 Terminology of (secondary) cell or battery [eqv IEC 60050(482). 2003]
3 Terms, Definitions and Symbols
3.1 Terms and Definitions
For the purposes of this Standard, the terms and definitions given in GB/T 2099.11 apply.
3.1.1 high energy density battery
The battery characterized by high energy density and mainly used for high energy output.
3.1.2 high power density battery
The battery characterized by high power density and mainly used for input and output of
high power.
3.1.3 charge recovery
The ratio between the discharge capacity AND the rated capacity of battery that has been
stored for certain time and recharged under certain temperature.
3.1.4 end-of-charge current
The current when the battery is charged at designated constant voltage and at the end of
charge.
3.1.5 explosion
The shell of battery cracks with solid material rushing out from the battery and making a
sound.
3.1.6 fire
The fire started in the shell of battery.
4 Classification
The lithium-ion batteries for electric vehicles are divided into the square battery and
cylindrical battery.
5 Requirements
5.1 Cell-battery
5.1.1 Appearance
When the battery is inspected according to Clause 6.2.1, there shall be no deformation or
crack on the appearance. The surface shall be smooth, dry, without external damage or
pollutant etc. and the mark shall be clear and correct.
5.1.2 Polarity
When the battery is inspected according to Clause 6.2.2, the polarity of terminal shall be
right. There shall be clear identifications of the positive-negative polarity.
5.1.3 Dimension and mass
The dimension and mass of the battery shall conform to the technical specifications
provided by the manufacturer.
5.1.4 Discharge capacity at 20ºC
When the battery is inspected according to Clause 6.2.5, its capacity shall be no less than
the rated value that is specified in the technical specifications and provided by the
manufacturer. At the same time, the capacity shall be no more than 110% of the rated
value that is specified in the technical specifications and provided by the manufacturer.
5.1.5 Discharge capacity at -20ºC
When the battery is inspected according to Clause 6.2.6, its capacity shall be no less than
70% of the rated value.
5.1.10 Cycle life
When the battery is tested according to Clause 6.2.11, its cycle life shall be no less than
500 times.
5.1.11 Safety
5.2 Battery module
5.2.1 Appearance
When the battery module is inspected according to Clause 6.3.1, there shall be no
deformation or crack on the appearance. The surface shall be smooth, dry, without
external damage; and it shall be arranged neatly, connected reliably and marked clearly etc.
5.2.2 Polarity
When it is inspected according to Clause 6.3.2, the polarity of terminals shall be correct,
with clear identifications of the positive and negative electrodes.
5.2.3 Dimension and mass
It shall be according to the technical specifications provided by the manufacturer.
5.2.4 Discharge capacity at 20ºC
Each module is required to be composed of at least 5 or more cell-batteries in series.
When the battery module is inspected according to Clause 6.3.4, its capacity shall be no
less than the rated value specified in the technical specifications that the manufacturer
provided. At the same time, the capacity shall be no more than 110% of the rated value
specified in the technical specifications that the manufacturer provided.
5.2.6 Vibration resistance
Each module is required to be composed of at least 5 or more cell-batteries in series.
When the battery module is tested according to Clause 6.3.7, there shall be no
sudden-change of discharge current, abnormal voltage, deformation of battery shell,
electrolyte leakage or other phenomena. And it shall maintain reliable connection and
good structure, without loosened installation of machines.
5.2.7 Safety
Each module is required to be composed of at least 5 or more cell-batteries in series.
6 Test Methods
6.1 Test condition
6.1.1 Environmental condition
Unless otherwise stated, test shall be performed at 15ºC ~ 35ºC, relative humidity is 25%
~ 85%, air pressure is 86kPa ~ 106kPa.
6.1.2 Accuracy of measuring instruments and meters
6.2 Cell-battery test
6.2.1 Appearance
Visually inspect the appearance of the battery under good light condition.
6.2.2 Polarity
Measure the polarity of the battery with voltage meter.
6.2.3 Dimension and mass
Measure the dimension and mass of the battery with measuring and weighting
instruments.
6.2.4 Charge of battery
Charge the battery according to the special provisions provided by the manufacturer. If the
manufacturer does not provide the charger, then discharge the battery, under 20ºC ± 5ºC,
at 1I3 (A) current; stop the discharge when the voltage of the battery reaches 3.0V (or the
end-of-discharge voltage specified in the technical specifications of the manufacturer).
Stand for 1h; then charge it at 1I3 (A) constant-current under 20ºC ± 5ºC; change to
constant-voltage charging when the voltage of the battery reaches 4.2V (or the
end-of-discharge voltage specified in the technical specifications of the manufacturer);
stop the discharging when charging current reduces to 0.1I3.After charging, stand for 1h.
6.2.5 Discharge capacity at 20ºC
6.2.6 Discharge capacity at - 20ºC
6.2.7 Discharge capacity at 55ºC
6.2.8 Discharge capacity at 20ºC magnification
6.2.10 Storage
6.2.11 Cycle life
6.2.12 Safety
All the safety tests shall be carried out under conditions with sufficient environmental
protection.
6.3 Battery module test
6.3.1 Appearance
Visually inspect the appearance of the battery in good light condition.
6.3.2 Polarity
Measure the polarity of the battery with voltage meter.
6.3.3 Dimension and mass
Measure the dimension and mass of the battery module with measuring and weighting
instruments.
6.3.8 Safety
All the safety tests shall be carried out under conditions with sufficient environmental
protection.
6.3.8.1 Over-discharge.
6.4 Test procedure
6.4.1 Testing according to this procedure shall be performed continuously.
6.4.2 Test procedure of cell-batteries refers to Table 1.
6.4.3 Test procedure of battery modules refers to Table 2.
7 Inspection Rules
7.1 Classification of inspection, item of inspection, number of articles and clauses of
requirements, sample quantity and inspection cycle refer to Table 3.
7.2 Exit-factory inspection
7.2.1 Sample the products randomly from each batch of products before leaving the
factory; for inspection item of discharge capacity at 20ºC, the difference of discharge
capacity of all battery samples at 1I3 (A) shall not be lower than ±5%.
7.2.2 In the exit-factory test, if one or more items are unqualified, it shall return this batch
of products to the Production Department for repair and inspection, then resubmit them for
inspection. If there are still one or more items unqualified, then this batch of products shall
be judged as unqualified.
7.3 Type inspection
7.3.1 Carry out the type inspection under one of the following conditions.
7.3.2 Judgment rules
In the type inspection, if there is one item unqualified, the product shall be judged as
unqualified.
8 Marking, Packaging, Transportation and Storage
8.1 Marking
8.1.1 Following markings shall be attached on battery products.
8.1.2 External surface of packing case shall have following markings.
8.2 Packaging
8.2.1 Packaging of battery shall meet the requirements of moisture-proof and
anti-vibration.
8.3 Transportation
8.3.1 The transport-charge state of battery shall be less than 40%. In the transportation,
the products shall be prevented from intensive mechanical crack, sun and rain; it shall not
be inversed.
8.4 Storage
8.4.1 The battery shall be stored in at 5ºC ~ 40ºC, dry, clean and good ventilated
warehouse.
8.4.2 The battery shall be prevented from direct sunshine; it shall be placed no less than
2m to heating source.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
|