Evaluating Different ALD Techniques on NCM811 Cathodes to Mitigate Degradation and Improve Cycle Life

Dohrmann M, Langer F, Thieme S, Indris S, Ehrenberg H (2026)

Publication Type: Journal article

Publication year: 2026

Journal

Batteries & Supercaps Wiley-VCH Verlag

Book Volume: 9

Article Number: e70364

Journal Issue: 6

DOI: 10.1002/batt.70364

Abstract

We used two different techniques of atomic layer deposition (ALD) to prepare AlOx-coated LiNi0.8Co0.1Mn0.1O2 (NCM811) materials as cathodes for Li-ion batteries. The first approach was to use a fluidized bed reactor in order to coat the NMC811 powder before electrode film preparation and calendering with the goal of obtaining a dense coating on each particle of this powder. The second approach was to coat the electrode after film preparation and calendering by spatial ALD, with the possibility to prepare gradients of the coating material. We present an in-depth structural characterization of the prepared electrodes and their electrochemical performance, and we reveal the advantages and disadvantages of both approaches.

Involved external institutions

Mercedes-Benz AG DE Germany (DE) Karlsruhe Institute of Technology (KIT) DE Germany (DE)

How to cite

APA:

Dohrmann, M., Langer, F., Thieme, S., Indris, S., & Ehrenberg, H. (2026). Evaluating Different ALD Techniques on NCM811 Cathodes to Mitigate Degradation and Improve Cycle Life. Batteries & Supercaps, 9(6). https://doi.org/10.1002/batt.70364

MLA:

Dohrmann, Michael, et al. "Evaluating Different ALD Techniques on NCM811 Cathodes to Mitigate Degradation and Improve Cycle Life." Batteries & Supercaps 9.6 (2026).

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