Comparative Study on Methylene Methyl Disulfonate (MMDS) and 1,3-Propane Sultone (PS) as Electrolyte Additives for Li-Ion Batteries
Why this work is in the frame
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Bibliographic record
Abstract
The effectiveness of two electrolyte additives, 1,3-propane sultone (PS) and methylene methanedisulfonate (MMDS) either singly or in combination with vinylene carbonate (VC) has been studied. Li(Ni1/3Mn1/3Co1/3)O2 (NMC)/Graphite pouch cells containing these additives were studied using ultra high precision coulometry, automated storage experiments and electrochemical impedance spectroscopy. The two additives have the same SO3 functional group but it seems PS is more widely used by battery manufacturers. When used alone, both additives decrease the charge transfer impedance during cycling while MMDS shows better coulombic efficiency and lower charge end point capacity slippage rate than PS. Compared with 2% VC, MMDS in combination with 2% VC significantly improves the coulombic efficiency and the charge slippage rate, reduces the charge transfer impedance during cycling and decreases the voltage drop during storage while the addition of PS to VC-containing electrolyte does not show this added benefit. Compared to PS, MMDS seems to be a more beneficial additive for improving cell performance.
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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 | 0.001 |
| 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 it