Waxing Bare High-Voltage Cathode Surfaces to Enable Sulfide Solid-State Batteries
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Bibliographic record
Abstract
Ni-rich cathode materials (i.e., LiNi x Co y Mn 1– x – y O 2, x ≥ 0.8) coupled with sulfide solid catholytes such as argyrodite (Li 6 PS 5 Cl) are promising materials for high-performance solid-state batteries. However, the chemical reactivity and electrochemical decomposition of argyrodite above 2.5 V cause fast capacity fading in the operating window of the cell, necessitating the use of coatings to suppress those reactions. Here, we report a simple organic-coating concept that generates an electronically insulating cathode–electrolyte interphase which stabilizes the argyrodite against oxidative degradation. Utilizing Li 6 PS 5 Cl as the solid electrolyte, the nanometric layer of “waxy soap” (fatty acid salt) coated on the cathode active material (CAM) enables a capacity retention of 90% after 200 cycles (2.8–4.3 V vs Li + /Li), compared to 38% retention for the bare CAM, confirming both its interfacial stability and permeability to Li ions. This emphasizes the suitability and potential of this low-cost, easily processable, flexible, and conformal coating to suppress interfacial degradation in sulfide-based composite cathodes.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it