1.
the 9th Electrical Power, Electronics,
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Informatics Seminar (EECCIS)
9-11 October 2018,
Batu, Indonesia
1
Fast Charging Batteries
Simulation based on Capacitor
Model: Change of Resistance
Due to Internal Deposition
Sparisoma Viridi1,
*, Felix Pasila2
, Hendro3
1,3
Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia
2
Petra Christian University, Siwalankerto 121 - 131, Surabaya 60234, Indonesia
1
dudung@fi.itb.ac.id, 2
felix@petra.acid, 3
hendro@fi.itb.ac.id
20181009_2

2.
Outline
• Introduction
• Model
• Result s and discussion
• Summary
• Acknowledgments
the 9th Electrical Power, Electronics,
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9-11 October 2018,
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2
..

3.
the 9th Electrical Power, Electronics,
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Informatics Seminar (EECCIS)
9-11 October 2018,
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Introduction

4.
Charging a capacitor
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K. Mita and M. Boufaida, “Ideal capacitor circuits and energy conservation”, Am. J. Phys. vol. 67, pp.
737-741, August 1999.
( ) ττ /
0
/
0 1 tt
eqeCVq −−
+−=
[ ] τ
τ
/
00
1 t
eqCVI −
−=
RC=τ
( )00 qq =

5.
Optimal charging
the 9th Electrical Power, Electronics,
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B. Desoete and A. De Vos, “Optimal charging of capacitors”, in A. Trullemans and J. Sparsø (eds.),
Proc. 8th Int. PATMOS Workshop, Lyngby, Denmark, 7-9 October 1998, pp. 335-344.
step
ramp
step + ramp
Vc: source
Vh: capacitor

6.
Capacitor vs battery
the 9th Electrical Power, Electronics,
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9-11 October 2018,
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B. E. Conway, “Similarities and differences between supercapacitors and batteries for storing
electrical energy”, in Electrochemical Supercapacitors, Springer, Boston, 1999, pp. 11-31.

7.
Capacitor vs battery (cont.)
the 9th Electrical Power, Electronics,
Communications, Controls and
Informatics Seminar (EECCIS)
9-11 October 2018,
Batu, Indonesia
7

8.
Capacitor vs battery (cont.)
the 9th Electrical Power, Electronics,
Communications, Controls and
Informatics Seminar (EECCIS)
9-11 October 2018,
Batu, Indonesia
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9.
Electrochemical storage
the 9th Electrical Power, Electronics,
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E. Frackowiak and F. Béguin, “Carbon materials for the electrochemical storage of energy in
capacitors”, Carbon, vol. 39, pp. 937-950, May 2001.

10.
Lead-acid battery
the 9th Electrical Power, Electronics,
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L. Siguang, Z. Chengning, X. Shaobo, “Research on fast charge method for lead-acid electric vehicle
batteries”, Proc. Int. Workshop on Intelligent Systems and Applications, Wuhan, China , 23-24 May
2009, pp. 1-5.

11.
Car battery
• Equivalent
circuit for
FreedomCar
battery
the 9th Electrical Power, Electronics,
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N. Omar, M. A. Monem, Y. Firouz, J. Salminen, J. Smekens, O. Hegazy, H. Gaulous, G. Mulder, P.
Van den Bossche, T. Coosemans, J. Van Mierlo, “Lithium iron phosphate based battery –
Assessment of the aging parameters and development of cycle life model”, Appl. Energy, vol. 113,
pp. 1575-1585, 2014.

12.
Only faradaic process
the 9th Electrical Power, Electronics,
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E. Prada, D. Di Domenico, Y. Creff, J. Bernard, V. Sauvant-Moynot, and F. Huet, “Simplified
electrochemical and thermal model of LiFePO4-graphite Li-ion batteries for fast charge applications”,
J. Electrochem. Soc., vol. 159, pp. A1508-A1519, August 2012.

13.
the 9th Electrical Power, Electronics,
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Model

14.
Change of internal resistance
• Due to deposition on membrane or electrode
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..
( ) ( ) ( )00intint ,ttRtRtR ∆+=
( )
( ) ( )
( ) ( )
( ) ( )




<∆−
=
>∆
=∆
.,
,,0
,,
,
0
0
0
0
tVtVR
tVtV
tVtVR
ttR
D
C

15.
Change of int.. resistance (cont.)
• Charge and discharge can have different
resistance change
the 9th Electrical Power, Electronics,
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9-11 October 2018,
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..
( )[ ] ( )
[ ]int0 /
0intmax 1 τtt
C etRRR −−
−−=∆
( ) ( ) int0 /
0int
τtt
D etRR −−
=∆

16.
Circuit model
the 9th Electrical Power, Electronics,
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16
..

17.
Signal form
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18.
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9-11 October 2018,
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Results and discussion

19.
Simulation parameters
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9-11 October 2018,
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20.
τint = 2 s, t0 - τ0 (ms)
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9-11 October 2018,
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..

21.
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9-11 October 2018,
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22.
τint = 0.2 s, t0 - τ0 (ms)
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9-11 October 2018,
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22
..

23.
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9-11 October 2018,
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24.
Source pulse variation
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25.
the 9th Electrical Power, Electronics,
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9-11 October 2018,
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26.
Battery voltage
the 9th Electrical Power, Electronics,
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9-11 October 2018,
Batu, Indonesia
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the 9th Electrical Power, Electronics,
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9-11 October 2018,
Batu, Indonesia
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the 9th Electrical Power, Electronics,
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9-11 October 2018,
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Summary

29.
Summary
• Simulation of charging process of a battery
based on capacitor model has been
performed
• Resistance dependent voltage representing
internal deposition on the capacitor plate is
introduced to the system
• Constant and varied pulse width source
voltage influence battery voltage
the 9th Electrical Power, Electronics,
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..

30.
Future plan
• Use not constant current source
• Introduce different Rint into RC and RD
the 9th Electrical Power, Electronics,
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9-11 October 2018,
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31.
the 9th Electrical Power, Electronics,
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9-11 October 2018,
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Acknowledgments

32.
Acknowledgments
• Kemenristekdikti in supporting this work
• DAAD in supporting the travel
• UB in arranging this EECCIS 2018 event
the 9th Electrical Power, Electronics,
Communications, Controls and
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Batu, Indonesia
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33.
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https://osf.io/dmwvb/

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the 9th Electrical Power, Electronics,
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Thank you