Results 231 to 240 of about 1,651,776 (309)

Synergistic Integration of Fe–N4 Single‐Atom Sites and Directionally Aligned Electrode Architecture for High‐Performance Lithium–Sulfur Batteries

open access: yesAdvanced Science, EarlyView.
A directionally ice‐templated sulfur cathode integrated with atomically dispersed Fe–N4 catalytic sites is developed for high‐performance lithium–sulfur batteries. The structure–catalysis synergy accelerates Li+ transport and polysulfide conversion, leading to high sulfur utilization and stable long‐term cycling performance.
Lin Shen   +8 more
wiley   +1 more source

Sn‐Driven Grain Boundary Elimination for Single‐Crystalline Ni‐Rich Cathodes with Superior High‐Voltage Stability in Lithium‐Ion Batteries

open access: yesAdvanced Science, EarlyView.
A low‐temperature synthesis method of single‐crystalline NCA was successfully achieved by Sn doping, employing the same synthetic conditions as its polycrystalline counterparts. This synthesis was conducted at a temperature that was 150 °C lower than that required for synthesizing single‐crystalline NCA without Sn doping.
Guomeng Xie   +4 more
wiley   +1 more source

A Conduction‐Nucleation‐Competition‐Guided 3D Adaptive Gradient Buffer for Dendrite‐Free All‐Solid‐State Lithium Metal Batteries

open access: yesAdvanced Science, EarlyView.
A self‐adaptive gradient SCMN buffer layer is designed based on a conduction‐nucleation competition mechanism. The design dynamically optimizes ion/electron conduction and lithiophilicity, guiding dendrite‐free lithium deposition. Consequently, symmetric cells deliver exceeding 1600h at 1.5 mA cm−2, and the LiCoO2‐based full cells exhibit 98.5 ...
Yaru Shi   +9 more
wiley   +1 more source

Temperature‐Modulated MEMS Gas Sensor Array Enabled by Physics‐Informed Deep Learning for Thermal‐Runaway Characteristic Gas Discrimination

open access: yesAdvanced Science, EarlyView.
This work presents a 2 × 2 integrated single‐chip MEMS gas sensor array with temperature modulation and deep learning for discriminating thermal‐runaway characteristic gases. The array generates distinct temperature‐modulated response patterns for four characteristic gases (H2, CO, CH4, and CO2), while a HK‐MoE model is developed to achieve robust ...
Qin Luo   +8 more
wiley   +1 more source

Unveiling the Interfacial Dynamics of Crosslinked Biodegradable Polycaprolactone Solid Polymer Electrolytes and Li Metal During Lithium Plating and Stripping via Operando ATR‐FTIR Spectroscopy

open access: yesAdvanced Science, EarlyView.
This study presents a comprehensive interfacial characterization of the biodegradable PCL solid‐polymer electrolytes (SPEs) with Li metal, utilizing an advanced operando ATR‐FTIR spectroscopy. The investigation elucidates the interphase properties during Li plating/stripping in a zero‐excess cell configuration.
Jian‐Fen Wang   +5 more
wiley   +1 more source

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