Table 2 Summary table of experimental tests conducted on twenty 18650 cells.

From: An ageing study of twenty 18650 lithium-ion Graphite/LFP cells in first and second life use

Test case

Cell name

Charge type

End of charge cutoff voltage and cutoff C-rate

Charge rate

Discharge type

Discharge rate

DoD

1

Cell 1a

CC-CV

3.65 V – C/10

C/3

WLTP

C/3 on average

70%

Cell 1b

Cell 1c

2

Cell 2a

CC-CV

3.55 V – C/10

C/3

WLTP

C/3 on average

70%

Cell 2b

Cell 2c

3

Cell 3a

CC

3.65 V only

C/3

WLTP

C/3 on average

70%

Cell 3b

4

Cell 4a

CC-CV

3.65 V – C/10

2 C

WLTP

C/3 on average

70%

Cell 4b

Cell 4c

5

Cell 5a

CC-CV

3.55 V – C/10

2 C

WLTP

C/3 on average

70%

Cell 5b

Cell 5c

6

Cell 6a

CC-CV

3.65 V – C/10

2 C

CC

2 C

70%

Cell 6b

Cell 6c

7

Cell 7a

CC

3.65 V only

C/3

WLTP

C/3 on average

100% (2,5 V)

Cell 7b

Cell 7c

  1. Each test was performed on three cells, except for test case 3 due to laboratory equipment limitations.
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