4.8-V all-solid-state garnet-based lithium-metal batteries with stable interface
Why this work is in the frame
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Bibliographic record
Abstract
<h2>Summary</h2> Garnet-type solid electrolytes with high chemical and electrochemical stabilities are uniquely suitable for high-voltage operation but suffer from poor wettability with electrodes, resulting in large interfacial impedance. Here, we design a highly conductive and interface-friendly garnet-based composite solid electrolyte (CSE) comprising a cubic Li<sub>6.1</sub>Al<sub>0.3</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> porous framework and polyvinylidene difluoride (PVDF) with a three-dimensional continuous structure. Formation of La-N and La-F bonds between ceramic and polymer moieties promotes the dissociation of Li salt and thus leads to highly efficient transport. These coupling effects contribute to a high ionic conductivity (0.437 mS cm<sup>−1</sup>) and Li transfer number t<sup>+</sup> (0.72) at 25°C, while simultaneously enable high electrode/electrolyte interfacial stability. The high-voltage robustness of the developed CSE is demonstrated using TiO<sub>2</sub>-coated LiNi<sub>0.6</sub>Co<sub>0.2</sub>Mn<sub>0.2</sub>O<sub>2</sub>/ceramic-based CSE/Li full solid-state batteries, which are stably cycled over 200 times from 3 to 4.8 V with no signs of interfacial instabilities at nanoscale.
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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 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| 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