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Record W2160921702 · doi:10.1149/1.2801342

A Combined Computational/Experimental Study on Tertbutyl- and Methoxy-Substituted Benzene Derivatives as Redox Shuttles for Lithium-Ion Cells

2007· article· en· W2160921702 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueJournal of The Electrochemical Society · 2007
Typearticle
Languageen
FieldChemistry
TopicInorganic and Organometallic Chemistry
Canadian institutionsDalhousie University
FundersDalhousie UniversityNatural Sciences and Engineering Research Council of CanadaCanadian Institute for Advanced Research
KeywordsOverchargeLithium (medication)MoleculeRedoxChemistryIonBenzeneInorganic chemistryOrganic chemistryBattery (electricity)

Abstract

fetched live from OpenAlex

Calculations were performed on a group of 43 -butyl- and methoxy-substituted benzenes to assess their suitability as redox shuttle additives for lithium-ion cells. One molecule of this type has been previously shown to be excellent for overcharge protection of mesocarbon microbead (MCMB)/ and lithium-ion cells. These calculations showed that 2,5-di--butyl-1,4-dimethoxybenzene was the best molecule in this group, as far as oxidation potential and stability are concerned. Other molecules that showed promise were 2--butyl-1,4-dimethoxybenzene, 4--butyl-1,2-dimethoxybenzene, and 3,5-di--butyl-1,2-dimethoxybenzene. These molecules were synthesized and tested in coin-type cells to confirm the results expected based on the calculations. The results of the calculations show that the substitution pattern on the molecule can be used to predict the most reactive sites on the oxidized molecule. For the dimethoxy-substituted molecules, the calculations predict that the ortho and para substitution pattern results in more stable oxidized molecules than the meta pattern.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.003
Threshold uncertainty score0.624

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.010
GPT teacher head0.267
Teacher spread0.257 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it