Solid Solvent in Salt: All-Solid-State Batteries Based on High LiTFSI Composition

IF 5.5 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2026-09-28 Epub Date: 2026-09-15 DOI:10.1021/acsaem.6c01930

Ali Abouimrane, Muhammad Mominur Rahman, Ruhul Amin, Georgios Polizos, Joshua T. Damron, Ilias Belharouak

引用次数: 0

Abstract

A solid solvent in salt concept is applied to all-solid-state batteries (ASSBs) using a soft solid electrolyte (SE) composed of lithium bis(trifluoromethanesulfonyl)imide, succinonitrile, and ethylene carbonate with a weight ratio of 85/11/4. The developed SE exhibits an ionic conductivity of ∼10⁻⁴ S/cm at room temperature and an electrochemical stability window of approximately 5 V. Electrochemical performance was evaluated using lithium, graphite, and SiO_X anodes paired with a LiFePO₄ (LFP) cathode. The ASSBs, including LFP/SE/SiO_X and LFP/SE/graphite configurations, demonstrates reversible cycling at room temperature without the application of external pressure, highlighting the potential of the soft SE for practical ASSB applications.

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盐中的固体溶剂：基于高LiTFSI成分的全固态电池

固体溶剂盐概念应用于全固态电池（assb）使用软固体电解质（SE）组成的锂二（三氟甲烷磺酰）亚胺，琥珀腈和碳酸乙烯的重量比为85/11/4。制备的SE在室温下的离子电导率为~ 10−4 S/cm，电化学稳定窗口约为5 V。使用锂、石墨和SiOX阳极与LiFePO4 （LFP）阴极配对，对电化学性能进行了评估。ASSB，包括LFP/SE/SiOX和LFP/SE/石墨配置，在室温下无需施加外部压力即可实现可逆循环，突出了软SE在ASSB实际应用中的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.