Maintaining Interfacial Transports for Sulfide-Based All-Solid-State Batteries Operating at Low External Pressure
Bibliographic record
Abstract
All-solid-state batteries (ASSBs) have attracted considerable attention due to their theoretically high energy density and safety. However, maintaining intimate interfacial contact at low external pressures remains a challenge, limiting large-scale practical applications. Here, a bottom-up design of all-solid-state electrodes is proposed by minimizing internal stress variation to maintain interfacial transport at low external pressures. Theoretical calculations and synchrotron X-ray techniques reveal that the surface-to-bulk pillar effect alleviates the volumetric strain of the cathode materials at high delithiation, which is favorable for improving the interfacial mechanical and chemical compatibility to create fast ion percolation networks of the electrode. Therefore, the 4.4 V sulfide-based ASSBs retain a high specific capacity (166.7 mAh g –1, 0.2C), good rate performance, and stable cyclability (90.8% retention) at the operating pressure of 2 MPa. This work sheds light on the design concept of electrochemomechanical manipulation, serving as a guideline for developing practically acceptable low-pressure ASSBs.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".