Hydrogen‐Bond‐Rich Supramolecular Multiblock Copolymers Facilitate Rapid Zn <sup>2+</sup> Migration in Quasi‐Solid‐State Zinc‐Ion Batteries
Bibliographic record
Abstract
Abstract Quasi‐solid electrolytes (QSEs) have emerged as a highly promising solution to address key challenges in zinc‐ion batteries (ZIBs). However, QSEs often rely on a significant amount of water (H 2 O) to facilitate rapid Zn 2+ migration, which can lead to undesirable side reactions at the Zn anode. Here, polyurethane supramolecular multiblock copolymers (PU‐EG+DMPA‐Zn) are synthesized from the perspective of polymer block structure design. Interactions between zinc salts and carboxyl groups in the chain extender enhance zinc salt solubility while disrupting the intrinsic hydrogen bond network within the polymer matrix. This modification extends the hydrogen bonds between the polymer and H 2 O, regulates the solvation structure of hydrated Zn 2+ , and suppresses side reactions at the anode interface. Additionally, the in situ forms gradient solid electrolyte interphase (SEI) during cycling provides a robust protective barrier that significantly enhances the reversibility of zinc anodes. The abundant hydrogen bond network endows the PU‐EG+DMPA‐Zn QSE with anti‐freezing properties, allowing the symmetric battery to maintain a stable plating/stripping process for 3000 h at −20 °C. The assembled Zn‐MnO 2 battery demonstrates a capacity retention rate of 93.8% after 2000 cycles at 2 A g −1 . Overall, this work provides a unique design strategy for developing high‐performance quasi‐solid electrolytes.
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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 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| 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".