Specifications
-SAMSUNG SDI Confidential Proprietary –
Model INR18650-15L Version No.
3.21 Sang-Uck Kim
- 3/17 -
4. Outline dimensions
See the attachment (Fig. 1)
5. Appearance
There shall be no such defects as scratch, rust, discoloration, leakage which
may adversely affect commercial value of the cell.
6. Standard test conditions
6.1 Environmental conditions
Unless otherwise specified, all tests stated in this specification are conducted at
temperature 25±5℃ and humidity 65±20%.
6.2 Measuring equipment
(1) Ammeter and voltmeter
The ammeter and voltmeter should have an accuracy of the grade 0.5 or higher.
(2) Slide caliper
The slide caliper should have 0.01 mm scale.
(3) Impedance meter
The impedance meter with AC 1kHz should be used.
7. Characteristics
7.1 Standard charge
This "Standard charge" means charging the cell with charge current
0.75A and constant voltage 4.2V 100mA cut-off at 25℃.
7.2 Standard discharge capacity
The standard discharge capacity is the initial discharge capacity of the cell, which is
measured with discharge current of 1,500mA with 2.5V cut-off at 25℃ within 1hour
after the standard charge.
Standard discharge Capacity ≥ 1,450mAh
7.3 Standard rated discharge capacity
The standard discharge capacity is the initial discharge capacity of the cell, which is
measured with discharge current of 10A with 2.5V cut-off at 25℃ within 1hour
after the standard charge.
Standard rated discharge Capacity ≥ 1,450mAh
7.4 Initial internal impedance
Initial internal impedance measured at AC 1kHz after standard charge.
Initial internal impedance ≤ 30mΩ
7.5 Temperature dependence of discharge capacity
Capacity comparison at each temperature, measured with discharge
constant current 10A and 2.5V cut-off after the standard discharge is
as follows.
Discharge temperature
-20℃ -10℃ 0℃ 25℃ 60℃
60% 75% 80% 100% 100%
Note: If charge temperature and discharge temperature is not the same,
the interval for temperature change is 3 hours.
Percentage as an index of the capacity at 25℃(=1,450mAh) is 100%.
7.6 Temperature dependence of charge capacity
Capacity comparison at each temperature, measured with discharge constant current