Verification and Validation of a Rechargeable Lithium Polymer Battery Specification

Sl. No.Test CasesExpected BehaviorsResultsRemarks
1Constant Load Discharge Power Plot.
Sample Rate : 4 Min/Reading
V-I Plot @ 0.5C
Amp-Hr rating should be within the   95% of the Specification.  
2Constant Load Discharge Power Plot.
Sample Rate : 2 Min/Reading
V-I Plot @ 1C
Amp-Hr rating should be within the 88% of the Specification.  
3Constant Load Discharge Power Plot.
Sample Rate : 1 Min/Reading
V-I Plot @ 2C
Amp-Hr rating should be within the 80% of the Specification.  
4Internal resistance @ 0.5C  with 100% Charge LevelBelow 0.2 OHMS Use IR Formula
5Internal resistance @ 1C  with 100% Charge LevelBelow 0.4 OHMS Use IR Formula
6Internal resistance @ 2C  with 100% Charge LevelBelow 0.9 OHMS Use IR Formula
7Internal resistance @ 0.5C  with50% Charge LevelBelow 0.25 OHMS Use IR Formula
8Internal resistance @ 1C  with 50% Charge LevelBelow 0.5 OHMS Use IR Formula
9Internal resistance @ 2C  with 50% Charge LevelBelow 1.2 OHMS Use IR Formula
12Charge Retention Characteristics
Charge Level 100%, 2C Discharge V-I Plot.
Charge-discharge Delay = 1 Hr.
Minimum 98% of the specification  
13Charge Retention Characteristics
Charge Level 100%, 2C Discharge V-I Plot.
Charge-discharge Delay = 10 Hrs.
Minimum 95% of the specification  
14Charge Retention Characteristics
Charge Level 100%, 2C Discharge V-I Plot.
Charge-discharge Delay = 100Hrs.
Minimum 90% of the specification  
15Thermal dissipation at 1CUp to 1.5 Deg Cel. High from the ambiance. Open Box but No Air flow.
16Thermal dissipation at 2CUp to 3 Deg Cel. High from the ambiance. Open Box but No Air flow.
17Thermal dissipation at 3CUp to 3.5 Deg Cel. High from the ambiance. Open Box but No Air flow.
Note: All discharge cycle should be associated with a constant temperature discharge panel in order to achieve error free V-I plot and data.

Above table represents a sample test plan. Details will vary as per individual battery spec.

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