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General specification for vanadium flow battery
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NB/T 42040-2014
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Basic data | Standard ID | NB/T 42040-2014 (NB/T42040-2014) | | Description (Translated English) | General specification for vanadium flow battery | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | K82 | | Classification of International Standard | 27.070 | | Word Count Estimation | 11,156 | | Date of Issue | 6/29/2014 | | Date of Implementation | 11/1/2014 | | Quoted Standard | GB/T 2408-2008; GB/T 9969-2008; GB/T 29840-2013 | | Regulation (derived from) | National Energy Board Bulletin No. 4 2014 | | Issuing agency(ies) | National Energy Administration | | Summary | This standard specifies the vanadium redox flow battery system (hereinafter referred to as the battery system) technical requirements, test methods, inspection rules, signs, instructions, packaging, transport and storage. This standard applies to all kind | NB/T 42040-2014: General specification for vanadium flow battery---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
General specification for vanadium flow battery
NB
ICS 27.070
K82
Record number. 46555-2014
People's Republic of China Energy Industry Standard
NB / T 42040 -.2014
General technical conditions for all vanadium redox flow batteries
Published on.2014-06-29
2014-11-01 implementation
National Energy Administration released
Content
Foreword... II
1 Scope... 1
2 Normative references... 1
3 Terms and definitions... 1
4 Technical requirements... 1
5 Test methods... 2
6 Inspection rules... 5
7 logo, instruction manual... 7
8 Packaging, transportation, storage... 7
NB / T 42040 -.2014
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009 "Standardization Work Guide Part 1. Standard Structure and Preparation".
This standard was proposed by the China Electrical Equipment Industry Association.
This standard is under the jurisdiction of the Energy Industry Flow Battery Standardization Technical Committee (NEA/TC 23).
This standard is mainly drafted by. Dalian Rongke Energy Storage Technology Development Co., Ltd., Dalian Institute of Chemical Physics, Chinese Academy of Sciences, mechanics
Beijing Institute of Electrical and Technical Economics.
Participated in the drafting of this standard. Beijing Puneng Century Technology Co., Ltd., China Electric Power Research Institute, China Electrical Equipment Industry Association, Qing
Hua University, the first research institute of the Institute of Chemical Defense, Shanghai Shenli Technology Co., Ltd., Chengde Wanlitong Industrial Group Co., Ltd., etc.
The main drafters of this standard. Zhang Huamin, Li Ying, Ma Xiangkun, Chen Chen, Gao Sujun, Lu Wei
Participated in the drafting of this standard. Chen Renqi, Lai Xiaokang, Tian Chaohe, Wang Baoguo, Yin Haitao, Zhang Ruogu, Chen Jizhong, Cheng Jie, Zhang Yuxian,
Xu Yan, Miao Shuanggui, Li Xia.
This standard is the first release.
General technical conditions for all vanadium redox flow batteries
1 Scope
This standard specifies the technical requirements, test methods, inspection rules and signs of the all-vanadium redox flow battery system (hereinafter referred to as the battery system).
Instructions for use, packaging, transportation and storage.
This standard applies to all specifications of all vanadium flow battery systems.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this document.
For undated references, the latest edition (including all amendments) applies to this document.
GB/T 2408-2008 Determination of the burning properties of plastics
GB/T 9969-2008 General instructions for the use of industrial products
GB/T 29840-2013 All vanadium flow battery terminology
3 Terms and definitions
The following terms and definitions defined in GB/T 29840-2013 apply to this standard.
3.1
Capacity recovery ability
When the battery watt-hour capacity is attenuated to less than 80% of the rated watt-hour capacity, the watt-hour capacity is restored to at least 80% of the rated value after operation.
Ability on the ground.
Note. In order to not add new electrolyte, do not replace the electrolyte.
3.2
Unit battery system
A separate assembly of one or more modules connected by a circuit, connected to a converter to achieve a charge and discharge function.
4 Technical requirements
4.1 Working environment
The working environment of the battery system is as follows.
-- Temperature. 0 ° C ~ 40 ° C;
-- Altitude. ≤1000m;
-- Air humidity. 5% to 95%.
4.2 Appearance
When the battery system is inspected according to 5.3, the appearance should be clean, flat, no deformation, no electrolyte precipitation and leakage, and the mark is clear.
intact.
4.3 Rated watt-hour capacity
The battery system shall be tested in accordance with 5.4 and the watt-hour capacity shall not be lower than the rating recommended by the manufacturer.
4.4 rated power
The battery system shall be tested in accordance with 5.5 and the power shall not be lower than the rating recommended by the manufacturer.
NB / T 42040 -.2014
4.5 Battery System Rated Energy Efficiency
The battery system shall be tested in accordance with 5.6. The rated energy efficiency of the battery system shall meet the following requirements.
- For battery systems with rated power less than 10 kW, the rated energy efficiency should be greater than 50%;
- For battery systems with rated power from 10kW to 100kW, the rated energy efficiency should be greater than 60%;
-- For battery systems with a rated power greater than 100 kW, the rated energy efficiency should be greater than 65%.
4.6 Capacity retention
The battery system is tested in accordance with 5.7 and the watt-hour capacity decay rate should be less than 10%.
4.7 Low temperature storage performance
The battery system shall be tested in accordance with 5.8. The discharge watt-hour capacity shall not be less than 95% of the rated watt-hour capacity.
4.8 High temperature storage performance
The battery system shall be tested in accordance with 5.9, and the discharge watt-hour capacity shall not be less than 95% of the rated watt-hour capacity.
4.9 Overcharge protection
The battery system should have overcharge protection. After testing according to 5.10, the battery system can work normally.
4.10 Overdischarge protection
The battery system should have over-discharge protection measures. After testing according to 5.11, the battery system can work normally.
4.11 Charging characteristic curve
The battery system shall be tested in accordance with 5.12 and the following reference charging characteristics shall be provided.
a) charging watthour capacity - time;
b) charging watt-hour capacity - SOC;
c) Battery voltage - time.
4.12 Discharge characteristic curve
The battery system shall be tested in accordance with 5.13 and the following reference discharge characteristics shall be provided.
a) discharge watt hour capacity - time;
b) discharge watt hour capacity - SOC;
c) Battery voltage - time.
4.13 Flame retardant properties
After the battery system is tested according to 5.14, its outer casing, storage tank, pipeline and related important components shall comply with GB/T 2408-2008.
The requirements of Section 8.3.2, FH-1 (horizontal level) and 9.3.2, FV-0 (vertical level).
4.14 Explosion-proof performance
The battery system shall be tested in accordance with 5.15 and shall not ignite or detonate.
4.15 Insulation resistance
The battery system shall be tested in accordance with 5.16 and the insulation resistance shall be not less than 1 MΩ.
4.16 Short circuit protection
The battery system should have short-circuit protection.
4.17 Anti-leakage
The battery system shall be equipped with means or measures to prevent electrolyte leakage. The bracket, the casing and the like shall have anti-corrosion function.
5 Test methods
5.1 Test conditions
Unless otherwise specified, the test shall be carried out in the environment specified in this standard. The test environmental conditions are as follows.
-- electrolyte temperature. 25 ° C ~ 35 ° C;
-- Air humidity. 5% to 95%.
NB / T 42040 -.2014
5.2 Test equipment
The accuracy requirements of the test instrument are as follows.
- voltmeter. accuracy of 0.5, internal resistance of at least 1kΩ/V;
-- ammeter. accuracy of 0.5;
-- Thermometer. with appropriate range, the division value is not more than l ° C, the calibration accuracy is not lower than 0.5 ° C;
--Insulation resistance tester. the range meets the test requirements;
-- Electrical measuring equipment that can be adjusted by power, current and voltage through national institutions.
5.3 Appearance
Visual inspection of the appearance of the battery system, the appearance of the battery system should comply with the provisions of 4.2.
5.4 Rated watt-hour capacity test
Carry out the test of the rated watt-hour capacity of the battery system as follows.
a) charging the battery system to 100% SOC;
b) the battery system is discharged to a 30% SOC at rated power;
c) continue to discharge at 30% of the rated power until the discharge cut-off condition;
d) recording the SOC of the electrolyte during discharge;
e) repeat steps a) to d) 3 times;
f) calculating the average value of the watt-hour capacity of the discharge of the battery system for 3 charge and discharge cycles;
Note. For large-scale battery systems, considering the operability of the test, a unit battery system can be used instead of the battery system for testing.
g) If the value is greater than or equal to the rated watt-hour capacity specified by the manufacturer, it is considered to be satisfactory.
5.5 Rated power test
Carry out the test of the rated power of the battery system as follows.
a) the battery system is discharged to 0% SOC;
b) the battery system is charged at constant power until the charge cut-off condition;
c) the battery system discharges at a constant power until the discharge cut-off condition;
d) recording the SOC of the electrolyte during charging and discharging;
e) repeat steps b) to d) 3 times;
f) record the maximum continuous power during charging and discharging of the battery system;
Note. For large-scale battery systems, considering the operability of the test, a unit battery system can be used instead of the battery system for testing.
g) The value is greater than or equal to the rated power specified by the manufacturer and meets the requirements of 4.3 and 4.5.
5.6 Battery system rated energy efficiency test
Perform the battery system rated energy efficiency test as follows.
a) charging the battery system to 100% SOC;
b) the battery system discharges at rated power until the discharge cut-off condition;
c) the battery system is charged at rated power until the charge cut-off condition;
d) recording the SOC of the electrolyte during charging and discharging;
e) repeat steps b) to c) 3 times;
f) record the charge and discharge watt hour capacity data of the last cycle;
Note. For large-scale battery systems, considering the operability of the test, a unit battery system can be used instead of the battery system for testing.
5.7 Capacity retention test
Carry out the test of the capacity retention capacity of the battery system as follows.
a) charging the battery system to 100% SOC;
b) the battery system discharges at rated power until the discharge cut-off condition;
c) the battery system is charged at rated power until the charge cut-off condition;
d) recording the SOC of the electrolyte during charging and discharging;
e) repeating steps b) to d) for 99 times;
f) The battery system performs the capacity test according to the method specified in 5.4 and records the discharge watt hour capacity data;
Note. For large-scale battery systems, considering the operability of the test, a unit battery system can be used instead of the battery system for testing.
Perform the test of the low temperature storage performance of the battery system as follows.
a) charging the battery system to 100% SOC;
b) The battery system is shut down, the electrolyte temperature is lowered to not higher than 5 ° C and maintained for 12 h;
Note. Considering the operability of the test, you can use the stack and electrolyte that make up the battery system to assemble a small battery system that can perform test functions instead.
The primary battery system is tested.
c) The electrolyte does not precipitate or crystallize, and the electrolyte temperature is restored to normal temperature;
d) Repeat steps b) to c) three times to record the watt-hour capacity data of the last cycle of discharge;
e) The ratio of the volt-hour capacity of the last cycle to the rated watt-hour capacity data shall be in accordance with 4.7.
5.9 High temperature storage performance test
Perform the test of the high temperature storage performance of the battery system as follows.
a) charging the battery system to 100% SOC;
b) The battery system is shut down, the electrolyte temperature is raised to not lower than 40 ° C and maintained for 12 h;
Note. Considering the operability of the test, you can use the stack and electrolyte that make up the battery system to assemble a small battery system that can perform test functions instead.
The primary battery system is tested.
c) The electrolyte does not precipitate or crystallize, and the electrolyte temperature is restored to normal temperature;
d) Repeat steps b) to c) three times to record the watt-hour capacity data of the last cycle of discharge;
e) The ratio of the watt-hour capacity of the last cycle to the rated watt-hour capacity data shall be in accordance with 4.8.
5.10 Overcharge protection test
After the battery system is charged to the charge cut-off condition at rated power, it continues to be charged at a constant power, and the battery system should automatically start overcharging.
Electric alarm function.
NB / T 42040 -.2014
5.11 Over-discharge protection test
After the battery system discharges to the discharge cut-off condition at rated power, it continues to discharge at a constant power, and the battery system should automatically start over-discharge.
Electric alarm function.
5.12 Charging characteristic test
Perform the test of the battery system charging characteristic curve as follows.
a) the battery system is discharged to 0% SOC;
b) the battery system is charged at constant power until the charge cut-off condition;
c) recording the SOC of the battery system charging process;
d) Repeat steps a) to c) with 5 different power values and form a charging curve.
Note 1. The battery system should reach 100% SOC when charging with minimum power, and should not exceed 50% SOC when charging at maximum power.
Note 2. For large-scale battery systems, considering the operability of the test, a unit battery system can be used instead of the battery system for testing.
5.13 discharge characteristic curve test
Perform the test of the battery system discharge characteristic curve as follows.
a) charging the battery system to 100% SOC;
b) the battery system discharges at a constant power until the discharge cut-off condition;
c) recording the SOC of the battery system discharge process;
d) Repeat steps a) to c) with 5 different power values and form a discharge curve.
Note 1. The battery system should reach 0% SOC when discharging at minimum power, and should not be less than 50% SOC when discharging at maximum power.
Note 2. For large-scale battery systems, considering the operability of the test, a unit battery system can be used instead of the battery system for testing.
5.14 Flame retardant performance test
Perform the test of the flame retardant performance of the battery system as follows.
a) Horizontal method. according to the provisions of Chapter 8 of GB/T 2408-2008, the outer casing, storage tank, pipeline and internal of the battery system after the test
The relevant important parts of the Ministry shall comply with the requirements of FH-1 (horizontal level) of Article 8.3.2 of GB/T 2408-2008;
b) Vertical method. according to the provisions of Chapter 9 of GB/T 2408-2008, after the test, the outer casing, storage tank, pipeline and internal of the battery system
The relevant important parts of the Ministry shall comply with the requirements of FV-0 (vertical level) in 9.3.2 of GB/T 2408-2008.
5.15 explosion-proof performance test
Carry out the test of the explosion-proof performance of the battery system as follows.
a) should be tested after confirming that the safety measures are guaranteed;
b) The battery system is charged at rated power until the charge cut-off condition, and continues to remain charged;
c) After 1h, with a DC 24V power supply at a 2/3 height outside the tank (or the highest point of the battery system) without power failure
Fuse the fuses of 1A to 3A and repeat the flame test twice;
d) The battery system shall not ignite or detonate.
5.16 Insulation resistance test
The insulation resistance tester is used to measure the insulation resistance between the positive and negative terminals of the battery system to ground. The test results should meet the requirements of 4.15.
6 Inspection rules
6.1 Inspection classification
The inspections specified in this standard are divided into factory inspection and type test.
6.2 Factory inspection
6.2.1 The product shall be inspected at the factory before leaving the factory. The inspection method is random inspection. The inspection items are shown in Table 1.
6.2.2 If one or more items fail in the factory inspection, the product shall be returned to the relevant department for rework and submitted for acceptance again. If
If one or more failures are detected again, the product is judged to be unqualified.
NB / T 42040 -.2014
Table 1 Factory inspection rules for all vanadium redox flow battery system
Serial number inspection classification inspection project requires chapter number inspection quantity
Factory inspection
Appearance 4.2
set
2 rated power 4.4
3 battery system rated energy efficiency 4.5
4 insulation resistance 4.15
6.3 Type inspection
6.3.1 Type inspection requirements
A type test should be performed when one of the following conditions occurs.
-- trial production of new products or small batch trial production;
- Regular sampling, continuous mass production of products shall not be less than once a year;
-- changes in design or process are sufficient to cause a change in the performance of the product;
--Products are transferred to the factory for production or long-term stop (more than the regular sampling period) and resume production after production;
-- when the customer has special requirements;
-- When the superior quality supervision department has requirements.
6.3.2 Decision rules
When all the test items meet the requirements, the type test is passed. If any item does not meet the specified requirements, then add
If the sample is not qualified, the type test is judged to be unqualified.
6.3.3 Sampling method
Samples for type inspection shall be of the same battery system as the normal production of materials, equipment and processes, and the inspection items are shown in Table 2.
Table 2 Type inspection rules for all vanadium redox flow battery systems
Serial number test classification test item requires chapter number sample quantity
Type test
Appearance 4.2
set
2 rated watt-hour capacity 4.3
3 rated power 4.4
4 battery system rated energy efficiency 4.5
5 Capacity retention capability 4.6
6 low temperature storage performance 4.7
7 high temperature storage performance 4.8
8 Overcharge protection 4.9
9 Overdischarge protection 4.10
10 Charging characteristic curve 4.11
11 discharge characteristic curve 4.12
12 flame retardant performance 4.13
13 Explosion-proof performance 4.14
14 insulation resistance 4.15
15 short circuit protection 4.16
16 anti-leakage 4.17
NB / T 42040 -.2014
7 logo, instruction manual
7.1 mark
7.1.1 The following signs should be on the product.
a) the name of the manufacturer or its registered trademark;
b) the nominal specification of the battery system, expressed as. rated power/rated capacity;
c) the date of manufacture or serial number of the battery system;
d) the polarity symbol;
e) Warning signs, the contents of the warning signs should include vibration hazards, crushing hazards, corrosive liquids, etc.
7.1.2 The outer wall of the package shall have the following signs.
a) the name, model, specification and quantity of the product, the name of the manufacturer, the address of the factory, and the zip code;
b) product standard number;
c) net weight and gross weight per box;
d) Marking signs indicating moisture, frost, no inverted, light, corrosive, dangerous, etc.
7.2 User's Manual
Instructions for use shall comply with the requirements of GB/T 9969-2008.
8 Packaging, transportation, storage
8.1 Packaging
8.1.1 The packaging of the battery system shall comply with the requirements of moisture, vibration and corrosion.
8.1.2 The following documents accompanying the product shall be loaded in the package.
--Packing List;
--Product certification;
--Instruction Manual.
8.2 Transportation
8.2.1 During transportation, the product shall not be subjected to severe mechanical impact, exposure to the sun, or rain, and shall not be inverted.
8.2.2 During the loading and unloading process, the product should be handled lightly, and it is strictly forbidden to throw, roll, and press. If necessary, a crane or similar should be provided.
The equipment is loaded and unloaded.
8.3 Storage
8.3.1 The product shall be designed and packaged so that it can be stored safely without damage (eg sufficient stability and special reinforcement).
8.3.2 The product should be stored in a dry, clean and well ventilated warehouse at a temperature between 0 °C and 40 °C.
8.3.3 The product shall be free from direct sunlight and shall not be less than 2 m away from the heat source.
8.3.4 Do not invert and lay down, and avoid mechanical shock and heavy pressure.
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