Self‐Lithiation Homogenized Electron‐Ion Distribution Interlayer for All‐Solid‐State Li Metal Batteries

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Abstract All‐solid‐state Li metal batteries (ASSLMBs) with sulfide solid‐state electrolytes (SSEs) are anticipated to be the next‐generation energy storage technology, potentially providing high density meanwhile enhancing safety. However, complicated solid–solid interface between SSEs and leads contact issues dendrite. In this contribution, a multifunctional hierarchical silicon carbon (H–Si/C) structure design is proposed as an interlayer metal. A homogeneous electron‐ion transport network established through Li–Si alloy formed by Si self‐lithiation nano‐carbon layer on surface, achieving compact interfacial dendrite‐free interlayer. The ASSLMBs assembled H–Si/C exhibit 70.28% capacity retention after 800 cycles at 0.5C. addition, H─Si/C interlayers can efficiently match high‐loading cathode, maintaining of 80.9% 200 under areal 3.4 mAh cm −2 , working well even ultra‐high loading 6.9 . This finding provides novel insights understand principles anode crucial for safety long lifespan ASSLMBs.

Language: Английский

Pore Engineering of SiOx Hybrids for Reliable High-Performance Lithium-Ion Batteries

Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120445 - 120445

Published: May 1, 2025

Language: Английский