5. General performance
No. Item
Test methods and condition
Criteria
5.1
0.2C Capacity
After standard charging, rest battery for 10min,
≥300min
then discharging at 0.2C to voltage 3.0V,
recording the discharging time.
5.2
Cycle life
Constant current 1.0C charge to 4.2V, then constant
≥300times
voltage charge to current declines to 0.01C, rest 10min,
constant current 1.0C discharge to 3.0V
，
rest 10min.
Repeat above steps till continuously discharging capacity
Higher than 80%of the Initial Capacities of the Cells
5.3
Capability of
20±5ºC, After standard charging, rest the battery 28days,
≥240min
keeping electricity
discharging at 0.2C to voltage 3.0V, recording
the discharging time.
6. Environment performance
No. Item
Test methods and condition
Criteria
6.1
Discharge at
After standard charging, rest the cells 4h at 60±2ºC,
≥54min
high temperature
then discharging at 1C to voltage 3.0V, recording
the discharging time.
6.2
Discharge at
After standard charging, rest the cells for 16h at -20±2ºC
≥210min
low temperature
then discharging at 0.2C to voltage 3.0V, recording
the discharging time.
6.3
Thermal shock
Put the cells in the oven. The temperature of the oven
No fire, no smoke
is to be raised at 5±2ºC per minute to a temperature
of 130 ±2ºC and remains 30 minutes.
7. Safe characteristic
No. Item
Test methods and condition
Criteria
7.1
Over charge
At 23±5ºC , charging cells with constant current 2C
No fire, no smoke
testing
to voltage 5V. Stop test till cells temperature 10ºC lower
than max temperature.
7.2
Over discharge
At 23±5ºC, According to the requirements of standard
No fire, no smoke,
testing
charge, the cells will be discharge to cut-off voltage,
no leakage
then connect with external load of 30 ohm for 24 hours.
7.3 Short-circuit
At 23±5ºC, After standard charging, connect cells anode
No fire, no smoke
testing
and cathode by wire which impedance less than
80±20mΩ, keep 6h.
w w w . f u l l w a t . c o m
LIR14500-8
•
Rechargeable Lithium battery
Note
-
Above testing of safe characteristic must be with protective equipment.
