Microsoft Word icr18650-22f specification Tentative doc



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Samsung-ICR18650-22F-Datasheet

7. Characteristics 
7.1 Standard Charge 
This "Standard Charge" means charging the cell with charge current
1100mA and constant voltage 4.2V at 25

for 3hours.
7.2 Standard Discharge Capacity 
The standard discharge capacity is the initial discharge capacity of the cell, which is
measured with discharge current of 440mA with 2.75V cut-off at 25

within 1 hour
after the Standard charge. 
Standard Discharge Capacity

2150mAh 
7.3 Initial internal impedance 
Initial internal impedance measured at AC 1kHz after Standard charge. 
Initial internal impedance

100m

7.4 Temperature Dependence of Discharge Capacity 
Discharge capacity comparison at each temperature, measured with discharge
constant current 1100mA and 2.75V cut-off with follow temperature after the standard 
charging at 25


Charge Temperature 
Discharge temperature 
25

-10

0

25

45

Relative Capacity 
50% 
70% 
100% 
100% 


SAMSUNG SDI Confidential Proprietary

Spec. No. 
ICR18650-22F 
Version No.
Tentative 
Samsung SDI., Energy Business Division. 
4
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 Standard discharge capacity(=2150mAh) is 
100%. 
7.5 Temperature Dependence of Charge Capacity 
Capacity comparison at each temperature, measured with discharge
constant current 1000mA and 2.75V cut-off at 25

after the Standard charge is
as follow temperature. 
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 Standard discharge capacity(=2150mAh) is 
100%. 
7.6 Cycle Life 
Each cycle is an interval between the charge (charge current 1760mA) and the
discharge (discharge current 2200mA) with 2.75V cut-off. Capacity
after 299cycles and plus 1 day, measured under the same condition in 7.2 
Capacity 

1500mAh 
7.7 Storage Characteristics 
Capacity after storage for 30days at 25

after the Standard charged, 
measured with discharge current 1100mA with 2.75V cut-off at 25


Capacity retention(after the storage) 

1720mAh 
7.8 Status of the cell as of ex-factory 
The cell should be shipped in 50% charged state.

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