Highly ordered Li(Ni0.6Ti0.2Co0.2)O2 (NTC622) cathode material made by all-dry synthesis
Why this work is in the frame
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Bibliographic record
Abstract
Phase pure and highly ordered Li(Ni 0.6 Ti 0.2 Co 0.2 )O 2 (NTC622) with the O3 structure was synthesized using an all-dry method from metal oxide precursors. To our knowledge, this is the first report of highly ordered NTC622. A major impediment for NTC622 synthesis was found to be the slow diffusion of Ti during sintering. This was overcome by utilizing high-energy ball milling to maximized homogeneous transition metal distribution. In addition, a pure oxygen atmosphere during the sintering step was found to minimize LiTiO 2 formation. The synthesized NTC622 exhibited a reversible capacity of 120 mAh/g, low voltage polarization, and a discharge capacity retention of 93.7 % after 100 cycles. Additionally, the NTC622 demonstrated comparable high-rate performance to NMC622. This demonstrates that layered oxides with high Ti-content are attractive cathode materials. Additionally, this study shows that all-dry methods are an effective means for composition exploration in layered oxide materials. • Layered single-crystal Li(Ni0.6Ti0.2Co0.2)O2 (NTC622) cathode material reported. • Layered NTC622 has high capacity and high rate capability. • High rate capability in NTC622 facilitated by Ti-pillars. • All-dry synthesis is sustainable and facilitates new cathode compositions.
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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) | 0.001 | 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 | 0.000 |
| 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 it