Two‐Dimensional NiO@C‐N Nanosheets Composite as a Superior Low‐Temperature Anode Material for Advanced Lithium‐/Sodium‐Ion Batteries
Why this work is in the frame
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Bibliographic record
Abstract
Abstract Most of the anodes used in lithium‐/sodium‐ion batteries (LIBs/SIBs) have poor low‐temperature (LT) performances, which severely limit their applications under LT environment. Herein, two‐dimensional nickel oxide nanosheet encapsulated in N‐doped carbon coated layer (abbreviated as NiO@C−N NSs) is successfully prepared and investigated for the first time as a LT anode for LIBs/SIBs. As a result, the prepared NiO@C−N NSs electrode delivers a high room temperature (RT) Li‐storage capacity (1036 mA h g −1 at 0.05 A g −1 ) and excellent LT Li‐storage performance (428 mA h g −1 at 0.05 A g −1 at −40 °C). Furthermore, the prepared NiO@C−N NSs also exhibits a superior RT Na‐storage capacity of 529 mA h g −1 at 0.05 A g −1 and superior LT Na‐storage performance. Through electrochemical impedance spectroscopy analysis, we find that the LT Li‐/Na‐storage performances of NiO@C−N NSs electrodes are mainly dominated by the R SEI of SEI membrane formation at the electrode/electrolyte interface. Moreover, the LT Li‐/Na‐storage properties of NiO@C−N NSs can be effectively improved by using commercial LT electrolyte with low viscosity and low melting point.
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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) | 0.001 | 0.001 |
| 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) | 0.001 | 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