Redemption of Na <sub>2</sub> CO <sub>3</sub> : A Precursor for Ideal Interphase Formation
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
High Resolution Image Download MS PowerPoint Slide Layered sodium oxide cathodes form electrochemically unstable Na 2 CO 3 in humid air, causing capacity fade. This work redefines its role in cathode-electrolyte interphase (CEI) evolution. While a thick, loose Na 2 CO 3 layer promotes detrimental side reactions, a controlled layer can be transformed beneficially. Introducing fluoroethylene carbonate (FEC) enables this Na 2 CO 3 to react in situ, forming a NaF-rich CEI with a dual-layer structure: a dense, insulating NaF inner layer and a Na 2 CO 3 outer layer. This effectively suppresses interfacial decomposition, enhancing cycling stability. To minimize initial Na loss, a hydrophobic self-assembled monolayer (SAM) was employed to precisely regulate the Na 2 CO 3 thickness. The resulting composite “NaF/SAM-Na 2 CO 3 ” CEI synergistically delivers high initial capacity and exceptional long-term cyclability, achieving 88.7% capacity retention after 500 cycles. This study reveals Na 2 CO 3 ’s positive function and proposes a “preconstruction in situ transformation” strategy for designing advanced battery interfaces.
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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