Achieving Bichelating Solvation Structure toward Fast Charging and Long Lifespan Aqueous Zn‐Ion Batteries
Bibliographic record
Abstract
Abstract Design optimized solvation structure of hydrated Zn 2+ is an effective strategy for stabilizing Zn anodes and achieving decent performance for practical aqueous Zn‐ion batteries (AZIBs). However, the mechanism for precise targeted design of solvation structures remains unclear. This study employs a space‐confined regulation strategy through carbon chain shortening and amino migration to unveil the correlation between molecular conformation evolution and solvent sheath design. The findings demonstrate that carbon chain shortening and amino migration synergistically induce steric hindrance decrement, driving the transition from monopolar configuration to bisolvation‐sheath‐bichelation (BSB) configuration. The BSB structure facilitates Zn 2+ migration through electrostatic repulsion induced by dual Zn 2+ coordination, while enhancing Zn deposition/stripping kinetics via competitive anion desolvation. As a result, the Zn//Zn symmetric cell exhibits decent rate capability up to 30 mA cm −2 and remarkable stability for 3600 hours under 5 mA cm −2 and 5 mAh cm −2 . Moreover, the BSB structure has shown substantial enhancement in the cycling stability of Zn//V 2 O 5 cells with 80% capacity retention after 1800 cycles at 2 A g −1 . This work not only offers a new bichelation solvation structure design strategy, but also provides insights for electrolyte engineering in the related energy storage and conversion area.
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How this classification was reachedexpand
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 | 0.001 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".