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Model fluid for coating flows of Li-ion battery anode slurry

  • Innovation in Materials Processing
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Abstract

Slot coating is commonly used in lithium-ion battery electrode manufacturing. As the coating flow stability is sensitive to the processing conditions and physical properties of the coating solution, various studies have been conducted to obtain stable coating conditions with a battery slurry. However, there are some limitations to using the slurry in coating experiments. For instance, the opacity of the slurry poses a challenge to the visualization of the slurry coating. Herein, we propose a carboxymethyl cellulose (CMC) solution as a candidate for battery anode slurry for coating flows. Because a model fluid may not cover all rheological properties of the anode slurry, we focused on the high-shear viscosity with respect to the characteristics of the coating flows. The rheological properties of the slurry and model fluid were measured. To compare the coating flow at high-shear conditions, a computational analysis of the coating flow was conducted. Although the flow curves of the slurry and model fluid show slight deviations, the computed velocity profile of the model fluid is similar to that of the slurry. Furthermore, blade coating with the slurry and model fluid at a shear rate of 5000 s−1, produced a comparable coating thickness. Consequently, the CMC solution has proven to be a valuable candidate for experimental research on the coating flow of battery anode slurries.

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References

  1. Li J, Fleetwood J, Hawley WB, Kays W (2022) From materials to cell: state-of-the-art and prospective technologies for lithium-ion battery electrode processing. Chem Rev 122:903–956. https://doi.org/10.1021/acs.chemrev.1c00565

    Article  CAS  Google Scholar 

  2. Du C-F, Liang Q, Luo Y et al (2017) Recent advances in printable secondary batteries. J Mater Chem A 5:22442–22458. https://doi.org/10.1039/c7ta07856k

    Article  CAS  Google Scholar 

  3. Saraka RM, Morelly SL, Tang MH, Alvarez NJ (2020) Correlating processing conditions to short- and long-range order in coating and drying lithium-ion batteries. Acs Appl Energy Mater 3:11681–11689. https://doi.org/10.1021/acsaem.0c01305

    Article  CAS  Google Scholar 

  4. Ding X, Liu J, Harris TAL (2016) A review of the operating limits in slot die coating processes. Aiche J 62:2508–2524. https://doi.org/10.1002/aic.15268

    Article  CAS  Google Scholar 

  5. Higgins BG, Scriven LE (1980) Capillary pressure and viscous pressure drop set bounds on coating bead operability. Chem Eng Sci 35:673–682. https://doi.org/10.1016/0009-2509(80)80018-2

    Article  CAS  Google Scholar 

  6. Ruschak KJ (1976) Limiting flow in a pre-metered coating device. Chem Eng Sci 31:1057–1060. https://doi.org/10.1016/0009-2509(76)87026-1

    Article  CAS  Google Scholar 

  7. Carvalho MS, Kheshgi HS (2000) Low-flow limit in slot coating: theory and experiments. Aiche J 46:1907–1917. https://doi.org/10.1002/aic.690461003

    Article  CAS  Google Scholar 

  8. Romero OJ, Scriven LE, Carvalho MS (2006) Slot coating of mildly viscoelastic liquids. J Non-newton Fluid 138:63–75. https://doi.org/10.1016/j.jnnfm.2005.11.010

    Article  CAS  Google Scholar 

  9. Romero OJ, Suszynski WJ, Scriven LE, Carvalho MS (2004) Low-flow limit in slot coating of dilute solutions of high molecular weight polymer. J Non-newton Fluid 118:137–156. https://doi.org/10.1016/j.jnnfm.2004.03.004

    Article  CAS  Google Scholar 

  10. Siqueira IR, Carvalho MS (2019) A computational study of the effect of particle migration on the low-flow limit in slot coating of particle suspensions. J Coat Technol Res 16:1619–1628. https://doi.org/10.1007/s11998-019-00196-4

    Article  CAS  Google Scholar 

  11. Nam J, Carvalho MS (2011) Flow visualization and operating limits of tensioned-web-over slot die coating process. Chem Eng Process Process Intensif 50:471–477. https://doi.org/10.1016/j.cep.2010.09.005

    Article  CAS  Google Scholar 

  12. Jeong T-J, Prasath RGR, Sitaraman SK, Harris TAL (2020) Visualization of delamination in encapsulated flexible electronics fabricated using slot die coating. J Electron Mater 49:3332–3339. https://doi.org/10.1007/s11664-020-08065-2

    Article  CAS  Google Scholar 

  13. Hong H, Nam J (2017) Automatic detection of contact lines in slot coating flows. Aiche J 63:2440–2450. https://doi.org/10.1002/aic.15612

    Article  CAS  Google Scholar 

  14. Clarke A (1995) The application of particle tracking velocimetry and flow visualisation to curtain coating. Chem Eng Sci 50:2397–2407. https://doi.org/10.1016/0009-2509(95)00036-5

    Article  CAS  Google Scholar 

  15. Kim D, Park J, Nam J (2021) Analysis of flow and slip behavior of microgel solution inside microchannel. Chem Eng Sci. https://doi.org/10.1016/j.ces.2021.116972

    Article  Google Scholar 

  16. Sato Y, Irisawa G, Ishizuka M et al (2003) Visualization of convective mixing in microchannel by fluorescence imaging. Meas Sci Technol 14:114. https://doi.org/10.1088/0957-0233/14/1/317

    Article  CAS  Google Scholar 

  17. Sinton D (2004) Microscale flow visualization. Microfluid Nanofluid 1(1):2–21. https://doi.org/10.1007/s10404-004-0009-4

    Article  CAS  Google Scholar 

  18. Kwon YI, Kim JD, Song YS (2015) Agitation effect on the rheological behavior of lithium-ion battery slurries. J Electron Mater 44:475–481. https://doi.org/10.1007/s11664-014-3349-1

    Article  CAS  Google Scholar 

  19. Park JH, Sung SH, Kim S, Ahn KH (2022) Significant agglomeration of conductive materials and the dispersion state change of the Ni-rich NMC-based cathode slurry during storage. Ind Eng Chem Res 61:2100–2109. https://doi.org/10.1021/acs.iecr.1c04205

    Article  CAS  Google Scholar 

  20. Liu D, Chen L-C, Liu T-J et al (2014) An effective mixing for lithium ion battery slurries. Adv Chem Eng Sci 04:515–528. https://doi.org/10.4236/aces.2014.44053

    Article  CAS  Google Scholar 

  21. Arancibia C, Navarro-Lisboa R, Zúñiga RN, Matiacevich S (2016) Application of CMC as thickener on nanoemulsions based on olive oil: physical properties and stability. Int J Polym Sci 2016:1–10. https://doi.org/10.1155/2016/6280581

    Article  CAS  Google Scholar 

  22. Middleman (1998) An introduction to fluid dynamics principles of analysis and design. Wiley, Australia

    Google Scholar 

  23. Gordon R, Orias R, Willenbacher N (2020) Effect of carboxymethyl cellulose on the flow behavior of lithium-ion battery anode slurries and the electrical as well as mechanical properties of corresponding dry layers. J Mater Sci 55:15867–15881. https://doi.org/10.1007/s10853-020-05122-3

    Article  CAS  Google Scholar 

  24. Lestriez B (2010) Functions of polymers in composite electrodes of lithium ion batteries. Cr Chim 13:1341–1350. https://doi.org/10.1016/j.crci.2010.01.018

    Article  CAS  Google Scholar 

  25. Lim S, Kim S, Ahn KH, Lee SJ (2015) The effect of binders on the rheological properties and the microstructure formation of lithium-ion battery anode slurries. J Power Sources 299:221–230. https://doi.org/10.1016/j.jpowsour.2015.09.009

    Article  CAS  Google Scholar 

  26. Lee J-H, Paik U, Hackley VA, Choi Y-M (2005) Effect of carboxymethyl cellulose on aqueous processing of natural graphite negative electrodes and their electrochemical performance for lithium batteries. J Electrochem Soc 152:A1763. https://doi.org/10.1149/1.1979214

    Article  CAS  Google Scholar 

  27. Carnali JO, Naser MS (1992) The use of dilute solution viscometry to characterize the network properties of carbopol microgels. Colloid Polym Sci 270:183–193. https://doi.org/10.1007/bf00652185

    Article  CAS  Google Scholar 

  28. Varges PR, Costa CM, Fonseca BS et al (2019) Rheological characterization of carbopol® dispersions in water and in water/glycerol solutions. Fluids 4:3. https://doi.org/10.3390/fluids4010003

    Article  CAS  Google Scholar 

  29. Denn MM, Bonn D (2011) Issues in the flow of yield-stress liquids. Rheol Acta 50:307–315. https://doi.org/10.1007/s00397-010-0504-3

    Article  CAS  Google Scholar 

  30. Bajaj M, Prakash JR, Pasquali M (2008) A computational study of the effect of viscoelasticity on slot coating flow of dilute polymer solutions. J Non-newton Fluid 149:104–123. https://doi.org/10.1016/j.jnnfm.2007.05.013

    Article  CAS  Google Scholar 

  31. Olsson F, Isaksson P (1995) The influence of viscoelastic rheology on blade coating as revealed by numerical methods. Nord Pulp Paper Res 10:234–244. https://doi.org/10.3183/npprj-1995-10-04-p234-244

    Article  CAS  Google Scholar 

  32. Ray SS (2006) Rheology of polymer/layered silicate nanocomposites. J Ind Eng Chem 12:811–842

    CAS  Google Scholar 

  33. Kwak H, Nam J (2020) Simple criterion for vortex formation in the channel flow of power-law fluids. J Non-newton Fluid 284:104372. https://doi.org/10.1016/j.jnnfm.2020.104372

    Article  CAS  Google Scholar 

  34. White FM, Majdalani J (2006) Viscous fluid flow. McGraw-Hill, New York

    Google Scholar 

  35. Weinstein SJ, Ruschak KJ (2004) Coating flows. Annu Rev Fluid Mech 36:29–53. https://doi.org/10.1146/annurev.fluid.36.050802.122049

    Article  Google Scholar 

  36. Sullivan TM, Middleman S (1986) Film thickness in blade coating of viscous and viscoelastic liquids. J Non-newton Fluid 21:13–38. https://doi.org/10.1016/0377-0257(86)80060-x

    Article  CAS  Google Scholar 

Download references

Acknowledgements

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (Ministry of Science and ICT, MSIT) (Nos. NRF-2018R1A5A1024127, NRF-2020R1A2C2008141, and NRF-2021M3H4A6A01041234). Also, the Institute of Engineering Research at Seoul National University provided research facilities for this work.

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  1. Myungjae Lee and Hyunjoon Jung have contributed equally to this work.

Authors and Affiliations

  1. School of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Republic of Korea

    Myungjae Lee, Hyunjoon Jung, Minho Lee, Hyungyeol Kwak & Jaewook Nam

  2. Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea

    Jaewook Nam

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  1. Myungjae Lee
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Correspondence to Jaewook Nam.

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Lee, M., Jung, H., Lee, M. et al. Model fluid for coating flows of Li-ion battery anode slurry. J Mater Sci 57, 17935–17945 (2022). https://doi.org/10.1007/s10853-022-07615-9

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