Electrolyte Filling of Large-Scale Lithium-Ion Batteries: Challenges for Production Technology and Possible Approaches

Abstract:

Lithium-ion batteries have been the dominant energy storage technology in consumer electronics for several years and meanwhile advanced into e-mobility and stationary applications. The trend towards large-scale batteries presents manifold challenges to production technology. One decisive assembly process is filling electrolyte liquid into the battery case. This paper discusses the main influences and challenges for production technology concerning this crucial manufacturing process and how they are addressed. First preliminary results are presented.

• Periodical: Applied Mechanics and Materials (Volume 794)
• Pages: 11-18
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.794.11
• Online since: October 2015
• Authors: Thomas Knoche*, Gunther Reinhart
• Keywords: Battery, Fluid, Manufacturing Process

References

[1] Boston Consulting Group, Batteries for electric cars, http: /www. bcg. com/documents/ file36615. pdf [18. 03. 2015].

[2] K. -H. Pettinger, Fertigungstechnologien für Lithium-Ionen-Zellen, in: R. Korthauer, Handbuch Lithium-Ionen Batterien, Springer Vieweg, Berlin, Heidelberg, (2013).

DOI: 10.1007/978-3-642-30653-2_17

[3] T.B. Reddy, D. Linden, Linden's handbook of batteries, 4th ed., McGraw-Hill, New York, (2011).

[4] J. Kurfer, M. Westermeier, C. Tammer, G. Reinhart, Production of large-area lithium-ion cells – Preconditioning, cell stacking and quality assurance, CIRP Annals 61 (2012) 1, 1-4.

DOI: 10.1016/j.cirp.2012.03.101

[5] K. In-Jung, K. Jong-Hee, L. Hyung-Kyu, Y. In-Seok, P. Seok-Jung, Apparatus and method for enhancing impregnation with electrolyte in secondary battery. U.S. patent 2013065111. (2012).

[6] D.L. Wood III, J. Li, C. Daniel, Prospects for reducing the processing cost of lithium ion batteries, J Power Sources 275 (2015) 234-242.

DOI: 10.1016/j.jpowsour.2014.11.019

[7] M.S. Wu, T.L. Lia, Y.Y. Wang, C.C. Wan, Assessment of the wettability of porous electrodes for lithium-ion batteries, J Applied Electrochemistry 34 (2004) 797-805.

DOI: 10.1023/b:jach.0000035599.56679.15

[8] Y. Morizane, Method for electrolyte injection, U.S. Patent 6497976. (2002).

[9] B. Reschke, Method for filling electrolyte into battery cell and apparatus for carrying out the method. U.S. patent 8047241. (2011).

[10] C.R. Hohenthanner, A. Klien, Method and device for filling an electrochemical cell, Patent WO 2012069100. (2012).

[11] T. Thönessen, G. Neumann, Method for filling electrochemical cells. Patent WO 2014/048918. (2014).

[12] K. Takimoto, Y. Maekawa, Appartus and method for injecting liquid into container. U.S. patent 6706440. (2000).

[13] G. Takayama, T. Erui, N. Kawamura, Manufacturing method of batteries. U.S. patent 6371996. (2002).

[14] T. Knoche, F. Surek, G. Reinhart, A process model for the electrolyte filling of lithium-ion batteries, Proceedings of the 48th CIRP Conference on Manufacturing Systems (2015), in press.

DOI: 10.1016/j.procir.2015.12.044

[15] A. Sakti, J.J. Michalek, E.R.H. Fuchs, J.F. Whitacre, A techno-economic analysis and optimization of Li-ion batteries for light-duty passenger vehicle electrification. J Power Sources 273 (2015) 966-980.

DOI: 10.1016/j.jpowsour.2014.09.078

[16] Y. Sheng, C.R. Fell, Y.K. Son, B.M. Metz, J. Jiang, B.C. Church, Effect of calendering on electrode wettability in lithium-ion batteries, Front. Energy Res. 2: 56, (2014).

DOI: 10.3389/fenrg.2014.00056

[17] R.S. Kühnel, S. Obeidi, M. Lübke, A. Lex-Balducci, A. Balducci, Evaluation of the wetting time of porous electrodes in electrolytic solutions containing ionic liquid, J Appl Electrochem 43 (2013) 697-704.

DOI: 10.1007/s10800-013-0558-x

[18] S.G. Lee, D.H. Jeon, Effect of electrode compression on the wettability of lithium-ion batteries. J Power Sources 265 (2014) 363-369.

DOI: 10.1016/j.jpowsour.2014.04.127

[19] W. Pfleging, R. Kohler, J. Pröll, Laser generated microstructures in tape cast electrodes for rapid electrolyte wetting: new technical approach for cost efficient battery manufacturing. Proc. SPIE 8968, laser-based micro- and nanoprocessing VIII, 89680B. (2014).

DOI: 10.1117/12.2039635

[20] S.S. Zhang, A review on the separators of liquid electrolyte Li-ion batteries. J Power Sources 164 (2007) 351-364.

DOI: 10.1016/j.jpowsour.2006.10.065

[21] P. Arora, Z. Zhang, Battery Separators, Chem. Rev. 104 (2004) 4419-4462.

[22] J. Pröll, B. Schmitz, A. Niemöller, B. Robertz, M. Schäfer, M. Torge, P. Smyrek, H.J. Seifert, W. Pfleging, Femtosecond laser patterning of lithium-ion battery separator materials: impact on liquid electrolyte wetting and cell performance. Proc. SPIE 9351, laser-based micro- and nanoprocessing IX, 93511F-1. (2015).

DOI: 10.1117/12.2079018

[23] K. Takada, Electrolyte injection device and electrolyte injection method. U.S. patent 2013/0029186. (2013).

[24] Hecht T. Model-based electrolyte filling method. WO2013171057 (A1), (2013).