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May 9, 2026Small MethodsOpen Access

High‐Resolution Mapping of Discharge Product in Li─O 2 Batteries

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Authors

LBLaurence F. BrazelUniversity of CambridgeMMMargherita MartiniCentre National de la Recherche ScientifiqueEME MaireCentre National de la Recherche Scientifique

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Implication

Randomized trial demonstrates discharge capacity limitations in lithium-oxygen batteries, highlighting critical factors affecting performance.

Key Points

  • This research aims to identify key limitations affecting the discharge capacity of lithium-oxygen batteries by mapping the discharge product distribution.
  • Utilized cross-sectional scanning electron microscopy and energy-dispersive X-ray spectroscopy to map discharge product distribution.
  • Analyzed electrode distribution focusing on areas of O2 influence and performance under varied conditions.
  • Employed lab-based X-ray nano-computed tomography for validation of sample preparation effects.
  • Discharge product accumulation was greater at the O2-side of the electrode, indicating pore blockage effects.
  • Key limitations attributed to oxygen starvation leading to under-utilization of air electrodes were confirmed.
  • Simulated battery results were consistent with mapped discharge product distribution, validating the computational model.

Cite This Study

Brazel et al. (2026) studied this question.

synapsesocial.com/papers/69fecf71b9154b0b82876667https://doi.org/10.1002/smtd.70699
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