GB 43854-2024 PDF English
US$320.00 · In stock · Download in 9 secondsGB 43854-2024: Safety technical specification of lithium-ion battery for electric bicycle Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 43854-2024 | English | 320 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Safety technical specification of lithium-ion battery for electric bicycle
| Valid |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB 43854-2024
GB 43854-2024: Safety technical specification of lithium-ion battery for electric bicycle---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/GB43854-2024
GB
NATIONAL STANDARD OF THE
PEOPLE'S REPUBLIC OF CHINA
ICS 43.140
CCS Y 14
Safety technical specification of lithium-ion battery for
electric bicycle
Issued on. APRIL 25, 2024
Implemented on. NOVEMBER 1, 2024
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 and definitions... 5
4 Symbols... 5
5 Safety requirements... 5
6 Test methods... 10
7 Type test... 20
Appendix A (Normative) Test method for flame retardancy of wires... 23
References... 25
Foreword
This document was drafted in accordance with the provisions of GB/T 1.1-2020
Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents.
Please note that some of the contents of this document may involve patents. The issuing
organization of this document does not assume the responsibility for identifying patents.
This document is proposed by and is under the jurisdiction of the Ministry of Industry
and Information Technology of the People's Republic of China.
Safety technical specification of lithium-ion battery for
electric bicycle
1 Scope
This document specifies the electrical safety, mechanical safety, environmental safety
and other requirements for lithium-ion battery cells and battery packs for electric
bicycles, and describes the corresponding test methods.
This document applies to lithium-ion battery cells and battery packs (hereinafter
referred to as cells and batteries) for electric bicycles that comply with the provisions
of GB 17761.
2 Normative references
The provisions of the following documents constitute the essential clauses of this
document through normative references in this text. Among them, for referenced
documents with dates, only the versions corresponding to the dates are applicable to
this document; for referenced documents without dates, the latest versions (including
all amendments) are applicable to this document.
GB/T 2423.4-2008 Environmental testing for electric and electronic products - Part
2.Test method - Test Db. Damp heat, cyclic (12h+12h cycle)
GB/T 2423.18-2021 Environmental testing - Part 2.Test methods - Test Kb. Salt
mist, cyclic (sodium chloride solution)
GB/T 5169.5-2020 Fire hazard testing for electric and electronic products - Part 5.
Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement
and guidance
GB/T 5169.16 Fire hazard testing for electric and electronic products - Part 16.Test
flames - 50W horizontal and vertical flame test methods
GB/T 17626.2 Electromagnetic compatibility - Testing and measurement
techniques - Electrostatic discharge immunity test
3 Terms and definitions
The terms and definitions defined in GB/T 36945-2018 and the following apply to this
document.
3.1 rated capacity
The capacity value of a cell or battery measured under specified conditions and declared
by the manufacturer.
3.2 cell
A basic unit device that directly converts chemical energy into electrical energy.
3.3 battery
A combination assembled by one or more cells and necessary components such as cases,
terminals and protective devices.
3.4 thermal runaway
The chain reaction of heat release from cells causes the battery temperature to rise
uncontrollably.
4 Symbols
The following symbols apply to this document.
C2.2-hour rate rated capacity (Ah)
5 Safety requirements
5.1 Cell safety requirements
5.1.1 Overcharge
When tested according to the test method in 6.3.1, the cell shall not catch fire or explode.
5.1.2 Over discharge
When tested according to the test method in 6.3.2, the cell shall not catch fire or explode.
5.1.3 External short circuit
When tested according to the test method in 6.3.3, the cell shall not catch fire or explode.
5.1.6 Marking
The cell shall be clearly marked with at least the following signs in a conspicuous
location.
5.2 Battery safety requirements
5.2.1 Electrical safety
5.2.1.1 Electrostatic discharge
After the test according to 6.4.1.1, the overcharge protection and short circuit protection
functions of the battery shall be normal.
5.2.2 Mechanical safety
5.2.2.1 Extrusion
When tested according to the test method in 6.4.2.1, the battery shall not catch fire or
explode.
5.2.2.2 Acceleration shock
When tested according to the test method in 6.4.2.2, the battery shall not leak, rupture,
catch fire or explode.
5.2.2.3 Vibration
When tested according to the test method in 6.4.2.3, the battery shall not leak, rupture,
catch fire or explode.
5.2.2.4 Free fall
When tested according to the test method in 6.4.2.4, the battery shall not catch fire or
explode.
5.2.2.5 Hander strength
When tested according to the test method in 6.4.2.5, the hander of the battery shall not
break, and the connection between the handle and the case shall not crack or fall off.
5.2.3 Environmental safety
5.2.3.6 Flame retardancy
When tested according to the test method of 6.4.3.6, the non-metallic casing of the
battery shall meet the requirements of V-0 level; the printed circuit board shall meet the
requirements of V-1 level; and the insulation of the wires shall not contribute to the
spread of flames.
5.2.4 Heat diffusion
When tested according to the test method in 6.4.4, the battery shall not catch fire or
explode within 5 minutes after the thermal runaway alarm is issued.
5.2.5 Mutual recognition and coordinated charging
The battery shall have the function of mutual recognition and coordinated charging with
the charging device.
When tested according to the test method in 6.4.5, the battery shall first be mutually
recognized and collaboratively identified with the charging device, and charging can
only begin after the mutual recognition and collaborative identification are passed.
5.2.6 Data collection
During the battery charging and discharging processes, at least the following data such
as cell voltage, battery total voltage, temperature, and current, shall be collected in real
time.
5.2.7 Marking
The battery shall be clearly and durably marked with at least the following marks in a
conspicuous location.
6 Test methods
6.1 Test conditions
6.1.1 Environmental requirements
Unless otherwise specified, the tests shall be carried out in the following environment.
Temperature. (20±5) ℃; relative humidity. not more than 85%; atmospheric pressure.
86 kPa~106 kPa.
6.1.2 Requirements for measuring instruments and equipment
The accuracy of measuring instruments and equipment shall not be less than the
following.
6.1.3 Single fault condition
If it is required to apply simulated faults or abnormal operating conditions, they shall
be applied sequentially, simulating one fault at a time. Faults directly caused by the
simulated fault conditions (such as direct damage to the device) are considered to be
part of the fault conditions.
6.2 Sample preparation
6.2.1 Cell sample preparation
6.2.1.1 Standard charging
If the company does not provide a charging method, the cell is charged using the
following method.
6.2.1.2 Standard discharge
Under the test environment of (23±2) ℃, after the cell is charged according to the
method in 6.2.1.1, it is discharged at a constant current of I2(A) to the end-of-discharge
voltage.
6.2.2 Battery sample preparation
6.2.2.1 Standard charging
If the company does not provide a charging method, the battery is charged using the
following method.
6.3 Cell safety test
6.3.1 Overcharge test
After the cell is fully charged according to the test method in 6.2.1.1, use a DC power
supply to charge at a current of I2(A) to 1.5 times the limited charging voltage or the
total charging time reaches 1.5 h, stop charging, and then let it stand for 6 h.
6.4 Battery safety test
6.4.1 Electrical safety
6.4.3.3 Water immersion test
After the battery is fully charged according to the test method in 6.2.2.1, it is immersed
in a water tank at a temperature of (20±5) ℃ (based on the water submerging the top
of the battery) for 48 hours, and then taken out and left to stand for 4 hours.
6.4.3.6 Flame retardancy test
The non-metallic case and printed circuit board of the battery shall be tested in
accordance with GB/T 5169.16; the wires shall be tested in accordance with Appendix A.
6.4.4 Thermal diffusion test
6.4.4.1 Trigger method
Heating or overcharging is recommended as an optional method for thermal diffusion
testing. Either method can be selected, but the selected method shall be able to trigger
the thermal runaway of the cell.
6.4.4.2 Trigger object
After the battery is charged according to 6.2.2.1, select a cell near the center of the
battery or surrounded by other cells as the trigger object.
6.4.4.3 Heating trigger
Heating-triggered thermal runaway method. Use a flat or rod-shaped heating device,
and its surface is covered with a ceramic or insulating layer.
6.4.4.5; after installation, start the heating device within 24 hours and heat the trigger
object with the maximum power of the heating device; the power requirements for the
heating device are shown in Table 2, and the heating power can be increased if necessary
to ensure that the trigger object has thermal runaway; stop heating when the trigger
object has thermal runaway.
6.4.4.4 Overcharge trigger
Overcharge triggered thermal runaway method. Charge the trigger object with constant
current at the maximum current that the battery can continuously operate until thermal
runaway occurs or the stage-of-charge of the trigger object reaches 3 times the rated
capacity of the battery;
6.4.4.5 Monitoring point layout plan
Follow the scheme below.
6.4.4.6 Judgment conditions for battery thermal runaway triggering
The judgment conditions are as follows.
6.4.4.7 Records
Record the time from when the battery issues a thermal runaway alarm to when it
catches fire or explodes, as well as the battery status within 1 hour after the thermal
runaway of the cell is triggered. If the battery does not catch fire or explode, it is
considered that the battery has passed the thermal diffusion test.
6.4.5 Mutual recognition and coordinated charging test
The test method for the mutual recognition and coordinated charging function between
the battery and the charging device is as follows.
6.4.6 Data collection test
Perform data collection and verification according to the communication method or
host computer provided by the manufacturer.
6.4.7 Marking
The marking test is carried out as follows.
7 Type test
7.1 Test regulations
When one of the following situations occurs, a type test shall be carried out.
7.2 Test samples and test procedures
In the absence of special requirements, samples for type tests shall be randomly selected
from products that have passed factory inspection.
7.3 Test criteria
If all type test items are passed, the product's type test is considered PASS.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB 43854-2024 be delivered?Answer: The full copy PDF of English version of GB 43854-2024 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB 43854-2024_English with my colleagues?Answer: Yes. The purchased PDF of GB 43854-2024_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB 43854-2024 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. How to buy and download a true PDF of English version of GB 43854-2024?A step-by-step guide to download PDF of GB 43854-2024_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB 43854-2024".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|