Anomalous, High-Voltage Irreversible Capacity in Tin Electrodes for Lithium Batteries
Bibliographic record
Abstract
Anomalous, high-voltage irreversible capacity is observed in electrodeposited and sputtered Sn films when used as working electrodes in electrochemical lithium cells. Sn electrodes can function as expected in Li/Sn cells provided the upper cutoff potential, while removing lithium from the Sn electrode, is kept below about 1.4 V. However, when the upper cutoff potential is increased to about 1.5 V and above, an anomalous irreversible high-voltage plateau in the voltage-capacity curve is often observed during subsequent lithiation. We discuss the relationship between the recharge cutoff voltage and the presence of anomalous high-voltage irreversible capacity. The dependence of the amount of anomalous, high-voltage irreversible capacity vs. discharge rate of the cell is investigated. A model is proposed to explain the anomalous high-voltage irreversible capacity, including strategies to avoid it. One of the strategies is to alloy Sn with Cu. © 2003 The Electrochemical Society. All rights reserved.
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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 | 0.000 |
| 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".