Synthesis, Characterization, and Thermal Stability of Li[Ni<sub>1/3</sub>Mn<sub>1/3</sub>Co<sub>1/3−<i>z</i></sub>(MnMg)<sub><i>z</i>/2</sub>]O<sub>2</sub>
Bibliographic record
Abstract
LiNi 1/3 Mn 1/3 Co 1/3− z (MnMg) z /2 O 2 (0 ≤ z ≤ 1/3) samples were prepared from hydroxide precursors. The hydroxide precursors were heated with Li 2 CO 3 at 900 °C for 3 h to prepare the oxides. The XRD results show single phase LiNi 1/3 Mn 1/3 Co 1/3− z (MnMg) z /2 O 2 samples can be prepared for 0 ≤ z ≤ 1/3. Rietveld refinements of XRD data show that when Mn and Mg substitute for Co in NMC there is an increase in the amount of transition metal in the Li layer. Electrochemical studies of the LiNi 1/3 Mn 1/3 Co 1/3− z (MnMg) z /2 O 2 (0≤ z ≤ 1/3) samples were used to measure the rate of capacity reduction with z, found to be about −250 (mAh/g)/( z = 1) charging to 4.3 V and −150 (mA h/g)/( z = 1) charging to 4.6 V. The impact of Mn and Mg cosubstitution on the thermal stability of charged LiNi 1/3 Mn 1/3 Co 1/3− z (MnMg) z /2 O 2 (0 ≤ z ≤ 1/3) samples in electrolyte was studied using accelerating rate calorimetry. The thermal stability of LiNi 1/3 Mn 1/3 Co 1/3− z (MnMg) z /2 O 2 is independent of z for the samples studied.
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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 | 0.003 | 0.001 |
| Meta-epidemiology (narrow) | 0.002 | 0.003 |
| Meta-epidemiology (broad) | 0.003 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.002 | 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; both teacher heads agree on what is shown here.
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".