Advances in transition metal oxide cathodes for zinc-ion batteries – A review focusing on safety and toxicity
Bibliographic record
Abstract
Aqueous Zinc-ion Batteries (AZIBs) have garnered significant attention as promising alternatives to conventional lithium-ion batteries, owing to their inherent advantages such as high energy density, affordability, and non-flammability. Despite their potential, achieving high-performance cathode materials remains a challenge, necessitating a delicate balance between electrochemical properties and considerations of environmental toxicity and human health. This comprehensive review delves into recent advancements in transition metal oxide cathodes, focusing on their potential to address safety, toxicity, cost, and feasibility concerns. The importance of toxicity has emerged prominently in recent years, fueled by increasing awareness of environmental and health impacts associated with energy storage technologies. Meanwhile, feasibility encompasses not only the electrochemical performance of cathode materials but also considerations of scalability, cost-effectiveness, and compatibility with large-scale energy storage applications. The review begins with a brief yet focused overview of Zinc batteries, providing an accurate classification, foundational understanding, and overview of current challenges. It then delves into contemporary concerns surrounding toxicity, cost, and feasibility of transition metal oxide cathode materials. In subsequent sections, various works involving oxide cathodes of Ti, Fe, Mn, and other relevant transition metals are thoroughly examined for their ability to meet these considerations. Lastly, key strategies directed towards mitigation of toxicity issues and cost-effective development of ZIBs is provided along with valuable insights into the future direction of AZIB research and development. • Reviews progress in TM oxide cathodes for AZIBs. • Emphasizes on electrochemistry of materials, with toxicity and safety. • Analyzes Ti, Fe, Mn cathodes for eco and cost efficiency. • Offers strategies to reduce toxicity and cost in AZIBs. • Sets future research directions for sustainable AZIBs.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| 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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".