Table 6 High C-rate pulse with GITT (HCGT) protocol.

From: High-power lithium-ion battery characterization dataset for stochastic battery modeling

Phase 2: HCGT

Step

Action

Exit Condition

Notes

1

1C CC charge

Vcell ≥ 4.2 V

 

2

CV hold at 4.2 V

Icell ≤ 50 mA

 

3

Rest

1 h

 

4

1C CC discharge

Vcell ≤ 2.5 V

 

5

Rest

1 h

 

6

1C CC charge

Vcell ≥ 4.2 V

 

7

CV hold at 4.2 V

Icell ≤ 50 mA

 

8

Rest

1 h

 

9

C/5 CC discharge

15 mins / 30 mins

Performed for 15 mins only once to get to 95% SoC

10

Rest

1 h

 

11

C/2 CC discharge

12 s

Performed at all SoC values

12

Rest

40 s

 

13

C/2 CC charge

12 s

Performed at all SoC values

14

Rest

30 mins

 

15

1C CC discharge

12 s

Performed at all SoC values

16

Rest

40 s

 

17

1C CC charge

12 s

Performed at all SoC values

18

Rest

30 mins

 

19

2C CC discharge

12 s

Performed at all SoC values except at 15% SoC

20

Rest

40 s

 

21

2C CC charge

12 s

Performed at all SoC values except at 95% and 85% SoC

22

Rest

30 mins

 

23

3C CC discharge

12 s

Performed at all SoC values except at 25% and 15% SoC

24

Rest

40 s

 

25

3C CC charge

12 s

Performed at all SoC values except at 95%, 85% and 75% SoC

26

Rest

30 mins

 

27

6C CC discharge

12 s

Performed at all SoC values except at 35%, 25% and 15% SoC

28

Rest

40 s

 

29

6C CC charge

12 s

Performed at all SoC  < 50%

30

Rest

30 mins

 

31

8C CC discharge

12 s

Performed at all SoC ≥ 50%

32

Rest

40 s

 

33

8C CC charge

12 s

Performed at all SoC ≤ 50%

34

Go to Step 8

counte≥ 7

 

35

Rest

30 mins

 

36

C/5 CC discharge

Vcell ≤ 2.5 V

 

37

Rest

1 h

 
  1. Steps 1-8 are for preconditioning the cell followed by C/5 CC discharges for GITT at all SoC values. Pulses are induced at C/2, 1C, 2C, 3C, 6C, and 8C in both charge and discharge. Details about the SoC at which the pulse is performed are given under Notes. The sequence of pulses are repeated 7 times to go through the complete SoC range (as indicated in Step 34).