Document Name
Document No.
Ver
Date
Page
LIR18650
Specification
ZJQM-RD-SPC-A12112
0.0
2017-8-28
4/9
6.1.3
Cycle Performance
Under the temperature of 23±2
℃
., charge the battery with 0.2C, when
the voltage reaches up to 4.2V charge with constant voltage until the
charge current ≤0.01C, then stop charging, rest for 0.5h, then
discharge with 0.2C to 3.00V. Cycle with the above mode, when the
continuous discharge time
＜
80% stop cycling. The cycle life is
required ≥300times.
6.1.4
Charged Storage
Characteristics
Charge the battery with 0.2C, then shift to charge with constant
voltage until the voltage reaches up to 4.2V, when the charge current
≤
0.01C stop charging; rest under the temperature of 23±2
℃
.for 28d
then discharge with 0.2C to 3.00V. The discharge time is required
≥4.25h.
6.1.5
Storage Characteristics
Charge the battery, which is newly manufactured shorter than 3
months, with 0.2C until the capacity reaches to 40~50%, after resting
for 12 months under the temperature of 23±2
℃
. and the humidity of
45
～
75%, then charge with 0.2C to 4.2V then shift to charge with
constant voltage, after full-charge rest for 0.5h, then discharge with
0.2C to 3.00V. The discharge time is required ≥4h.
6.2 Safety Test
No
Items
Test method and determinant standard
6.2.1
High Temperature
Characteristics
Under the temperature of 23±2
℃
, after charging the battery with 0.2C
then put the battery into the constant temperature and humidity oven
with 60±2
℃
for 2h, then discharge with 1C to 3.00V. The discharge
time is required ≥51min and the battery should no deformation and
smoking.
6.2.2
Low Temperature
Characteristics
Under the temperature of 23±2
℃
., after charging the battery with
0.2C, then put the battery into the constant temperature and humidity
oven with -10±2
℃
for 16~24h, then discharge with 0.2C to 3.00V.
The discharge time is required ≥3h and the battery should no
deformation and smoking.
6.2.3
Overcharge Protection
Characteristics
After full-charging the battery with 0.2C and set 1.2 times of the
nominal voltage and current as constant current and voltage supply,
then load it to the battery for 8h. It is required the battery should be no
leakage, deformation, smoking and explosion during the test
processes.