Strategies for Advanced Solid Electrolytes toward Efficient Lithium-Ion Conduction in All-Solid-State Lithium Metal Batteries

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

All-solid-state lithium metal batteries (ASSLMBs) have currently garnered significant academic and industrial interest, due to their great potential overcome intrinsic shortages of poor energy density unsatisfactory safety liquid-state lithium-ion batteries. Recently, many efforts been made move the progress solid electrolytes (SEs) forward for ASSLMBs, especially on understanding optimization conduction in SEs. Herein, we summarize a review recent design strategies rational SEs that display enhanced conduction, as well discussion principles working mechanisms boosted performance stability ASSLMBs. Given intimate relationship between mechanism composition SEs, reported can generally be classified into single-phase composite In detail, contain three typical categories, e.g., polymer-based, inorganic, plastic crystal-based For there are also main kinds, including polymer-inorganic, crystal-polymer, crystal-polymer-inorganic ternary The state-of-the-art literature representative materials carefully discussed analyzed, with corresponding factors enhancing highlighted. Finally, an outlook future directions advanced efficient is presented development

Language: Английский

High Li⁺ Coordination Entropy Reducing the Interaction between Li⁺ and Polymer Chains to Improve Li⁺ Transport for Solid‐State Lithium Metal Batteries

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

Published: April 15, 2025

Abstract High ionic conductivity and Li + transference number are crucial for ensuring the high safety energy density of solid‐state batteries, particularly those using lithium metal anodes (LMAs). However, performance current polymer electrolytes in these areas remains suboptimal, primarily due to insufficient transport properties hindered by strong coordination between ions chains. In this work, entropy is modulated through four types anions (TFSI − , DFOB BF 4 FSI ) reduce strength chains, thereby lowering barrier transport. Additionally, promote formation a uniform F‐ B‐rich solid electrolyte interphase on LMA surface. As result, fabricated with (HESPE) exhibits 0.238 mS cm −1 0.707 at room temperature. The assembled Li/HESPE/LiFePO batteries demonstrate improved plating/stripping behavior present stable cycling 1000 cycles without short circuit 1.5 C. high‐entropy strategy presents promising approach design industrial application enhanced stability safety.

Language: Английский