Enhancing power density and cycle life of NMC811 battery cathodes via combined dense calendering and laser patterning

Energy & Environmental Science 2026 Open access

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Authors: Kumar Raja Guvindan Raju, Stephen W. T. Price, Alice J. Merryweather, Aleksandar Radić, May Ching Lai, Debashis Tripathy, Daniel Lorden, Edward Saunders, Israel Temprano, Sulki Park, Caterina Ducati, Akshay Rao
+3 more Angkur Jyoti Dipanka Shaikeea, Clare P. Grey, Michaël De Volder
DOI: 10.1039/d5ee06773a
Cited by: 2
References: 42

Abstract

charge photometry to explore the limits of mass transport in the regions surrounding the holes but interestingly, we also observe improved capacity retention when using patterned electrodes. We found that there is less cathode lattice oxygen loss when using patterned cathodes, this in turn reduces transition metal shuttling reduces anode solid electrolyte interphase (SEI) impedance growth. We demonstrated a reduction in oxygen loss by both electron energy loss spectroscopy (EELS) mapping, X-ray diffraction (XRD) mapping and X-ray diffraction computed tomography (XRD-CT). Overall, SC-NMC811 electrode's ability to withstand over-calendering offers the opportunity to introduce laser patterned holes while maintaining the average porosity below 30%. This increases both the rate performance and longevity of the electrodes.

Fields of Study & Subjects

Advanced Battery Technologies Research Advancements in Battery Materials Fiber-reinforced polymer composites

Publication details

Journal / source
Energy & Environmental Science
Publisher
Royal Society of Chemistry (RSC)
Volume
19
Issue
4
Pages
1341–1351
Publication date
1 January 2026
Language
EN