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YD 1268.1-2003: [YD/T 1268.1-2003] The safety specification and test method for lithium batteries
YD/T 1268.1-2003 (Renamed from YD 1268.1-2003)
YD
COMMUNICATION INDUSTRIAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
YD/T 1268.1-2003
Safety requirements and test method for lithium
battery of mobile communication handset
ISSUED ON. JUNE 05, 2003
IMPLEMENTED ON. JUNE 05, 2003
Issued by. Ministry of Information Industry of PRC
Table of Contents
1 Scope ... 3 
2 Terms and definitions ... 3 
3 Measuring error of parameter ... 5 
4 Safety requirements ... 5 
5 Test conditions ... 7 
6 Test methods ... 8 
7 Safety marks ... 11 
Safety requirements and test method for lithium
battery of mobile communication handset
1 Scope
This Standard specifies the safety performance requirements for lithium battery
of mobile communication handset, including safety requirements and test
methods for normal use and possible false operation.
This Standard is applicable to lithium battery of mobile communication handset
(hereinafter referred to as the battery) and lithium battery cell (hereinafter
referred to as the battery cell).
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1 lithium battery cell
a device that contains metallic lithium, lithium alloy or lithium ion, is capable of
converting chemical energy directly into electrical energy; this device includes
electrode, diaphragm, container, and terminal
2.2 lithium battery
assembly of lithium battery cell, used for power supply, with voltage, size,
terminal device, capacity and rate characteristics
2.3 rated capacity
the released capacity that when the battery or battery cell, under the conditions
specified by the manufacturer, after charging and storing, is discharged in a
20°C ± 5°C environment at a current of 0.2C5A to the termination voltage
specified by the manufacturer
2.4 fully charged
according to the manufacturer's recommended charging method (including the
determination method for charging termination), when the internal storage
capacity of the battery or battery cell reaches the maximum value, it is
considered as fully charged
rupture, explosion and spontaneous combustion. If the battery cell is packaged
in a housing, the form of the package and the method of packaging shall not
cause the battery to overheat during normal operation, nor shall it restrict the
release of internal pressure.
4.1.3 Temperature/current management
The battery shall be designed to prevent abnormal rises in battery temperature.
NOTE. If necessary, safety limit shall be set when the battery is charged and discharged.
4.1.4 Terminal connection
The battery housing shall clearly indicate the polarity of the terminal. The size
and shape of the terminal shall ensure the maximum current expected to be
carried. The external terminal surface shall be made of a conductive material
with good mechanical properties and corrosion resistance. The terminal shall
be designed to be the least likely to have a short circuit.
4.1.5 Battery cell assembled into battery
The capacities of battery cell and assembled battery shall be closely matched.
The battery cells assembled in the same battery shall have the same structure,
the same chemical composition, and be produced by the same manufacturer.
4.2 Safety requirements in normal use
4.2.1 Continuous low rate charging
After the battery cell is tested according to the test method specified in 6.1, it
shall not be on fire, explode or leak.
4.2.2 Vibration
After the battery is tested according to the test method specified in 6.2, the
battery shall not be on fire, explode or leak.
4.2.3 High temperature performance
After the battery is tested according to the test method specified in 6.3, the outer
casing shall be free of deformation or its deformation shall not cause the internal
components of the battery to be exposed.
4.2.4 Temperature cycle
After the battery cell or battery is tested according to the test method specified
in 6.4, it shall not be on fire, explode or leak.
4.2.5 Low temperature performance
Place the fully charged battery or battery cell in a thermostat that can be
thermostated mandatorily. Perform -20°C ~ 75°C temperature cycle according
to the following procedures.
(1) make the temperature in thermostat rise to 70°C ± 2°C within 30min and
maintain 4h at this temperature;
(2) make the temperature in thermostat drop to 20°C ± 5°C within 30min and
maintain 2h at this temperature;
(3) make the temperature in thermostat drop to -20°C ± 2°C within 30min
and maintain 4h at this temperature;
(4) make the temperature in thermostat rise to 20°C ± 5°C within 30min and
maintain 2h at this temperature;
(5) repeat (1)~(4) and do 4 cycles;
(6) after the 5th cycle, check the battery after it is stored for 2h, which shall
meet the requirements of 4.2.4.
NOTE. This test can be performed in a thermostat that can be thermostated mandatorily. It can also be
carried out between 3 thermostats of different temperatures.
6.5 Low voltage performance test
Place the fully charged battery cell in a vacuum oven at 20°C ± 5°C. Perform
vacuuming to keep the air pressure < 11.6kPa for 6h. After the test, it shall meet
the requirements of 4.2.5.
6.6 External short circuit
Place the fully charged battery or battery cell at 20°C ± 5°C and 55°C ± 5°C for
2h, respectively. Then use wiring to short connect the positive and negative
terminals of each cell or battery and make sure all the external resistances
< 100mΩ. After short connection, maintain 24h or till the temperature of external
housing of battery cell or battery is dropped to.
Battery cell or battery original temperature + (maximum temperature rise
after battery cell or battery short circuit x20%).
After the test, it shall meet the requirements of 4.3.1.
6.7 Free fall test
Freely drop the fully charged battery cell or battery in any method from the
height of 1m to the concrete floor 3 times. After the test, it shall meet the
requirements of 4.3.2.