<i>(Invited)</i> Eutectic Electrolytes for Enhanced MnO₂ Deposition/Dissolution in Electrode-Free Batteries
Bibliographic record
Abstract
Aqueous metal batteries (ZMBs) are emerging as a promising next-generation energy storage technology for large-scale grid applications. Among these, Zn 2+ /Zn ||MnO 2 /Mn 2+ batteries operating via an electrodeposition/dissolution mechanism, offer high discharge voltage and excellent theoretical capacity. However, strong acid electrolytes – a requirement for reversible MnO 2 /Mn 2+ conversion –induce poor Zn reversibility with corrosion. In this work, we present a global approach that encompasses a wide range of eutectic hybrid aqueous-organic electrolytes. These electrolytes exhibit different mechanisms for interrupting the water-bonding network, thereby controlling HER and OER and directing the MnO 2 morphology, which will be discussed in this presentation. The optimal electrolyte systems not only enable highly reversible, long-term MnO 2 deposition/dissolution at the cathode but also stable plating/stripping of the Zn anode. Efficient Zn stripping/plating was demonstrated in Zn||Cu cells and high coulombic efficiency was achieved in electrodeless Zn 2+ /Zn || MnO 2 /Mn 2+ cells up to a thousand cycles with viable capacities. This study demonstrates the feasibility of extending the electrodeposition/dissolution mechanism to systems without external acid addition and with a simple design, advancing the development of zinc-manganese batteries with enhanced energy density and efficiency.
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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 | 0.001 | 0.005 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| 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".