Results 121 to 130 of about 6,391 (258)

Catholyte‐Free Composite Cathodes Break the Energy Density Barrier of All‐Solid‐State Lithium Batteries

open access: yesCarbon Energy, EarlyView.
All‐solid‐state lithium batteries (ASSLBs) with conventional catholyte‐based composite cathodes have a theoretical energy density limit of approximately 400 Wh kg–1 and 900 Wh L–1. The design of catholyte‐free composite cathodes can break this barrier and improve the theoretical energy density up to 500 Wh kg–1 and 1000 Wh L–1. ABSTRACT The gravimetric
Kai Wang   +9 more
wiley   +1 more source

Dual‐Armor Architecture‐Mediated Microstructural Engineering of Germanium Anode for Advanced Liquid‐ and Solid‐State Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A dual‐armor structured p‐Ge/SiO2/NC‐2 composite is designed to tackle the large volume variation and interfacial instability of Ge anodes. It combines internal SiO2 support with an outer N‐doped carbon layer to achieve exceptional structural integrity, a robust SEI and continuous conductive networks.
Tiansheng Chen   +10 more
wiley   +1 more source

Gibbs Free Energy‐Driven Li–MgF2 Composite Anodes for Stable Solid‐State Lithium Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A Li–MgF2 composite anode has been engineered through a Gibbs free energy‐driven reaction of molten Li with MgF2. Benefiting from the synergistic effect of the LiF and LixMg segregated structure, the Li–MgF2|garnet interface achieves a low interfacial resistance of 8.2 Ω cm2, and the Li–MgF2|garnet|Li–MgF2 symmetric cells accomplish ultrastable cycling
Ziduan Li   +4 more
wiley   +1 more source

Support‐Driven Hydrogen Migration Enhances Ammonia Decomposition in Direct Ammonia Protonic Ceramic Fuel Cells

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Enhanced hydrogen species migration enabled by FN/BZY catalyst mitigates intermediate accumulation and improves DA‐PCFC performance during ammonia decomposition. Ammonia, with its high hydrogen density and carbon‐free nature, serves as ideal fuel for direct ammonia protonic ceramic fuel cells (DA‐PCFCs).
Meijuan Fei   +9 more
wiley   +1 more source

Molten Salt Electrolyte for Enhanced Low‐Temperature Sodium Liquid Metal Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study introduces the application of a low‐temperature, high‐conductivity, solvent‐free Na/KFSI molten salt electrolyte in sodium liquid metal batteries. Additionally, this electrolyte facilitates the formation of a stable and NaF‐rich cathode electrolyte interphase (CEI) on the alloy cathode, enabling stable cycling at an unprecedentedly low ...
Jingya Dong   +10 more
wiley   +1 more source

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