Comparative Studies of Hardware Corrosion at High Potentials in Coin-Type Cells with Non Aqueous Electrolytes
Bibliographic record
Abstract
The electrochemical stability of control and aluminum-sputtered coin cell cases was studied by chronoamperometry in 1 M LiPF6 in ethylene carbonate/diethylcarbonate solution at various potentials vs Li/Li+ and at various temperatures for extended times. Under anodic polarization, aluminum-sputtered cases demonstrated a stable behavior due to their passivation by surface films. The parasitic current developed on the control stainless steel case was about one order of magnitude larger than on the aluminum-sputtered cases at all potentials and temperatures studied. After 200 hours of potentiostatic hold, cells were opened and examined for corrosion. Al-sputtered cases showed no corrosion under any condition, while the control cases showed localized discolorations at 4.6 V vs Li/Li+. The impact of these parasitic currents on high precision coulometry experiments using coin cell hardware is discussed.
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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) | 0.001 | 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 | 0.001 |
| 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".