journal article·2026-05-08

Universal Electro-Chemo-Mechanical Interface Engineering toward Dendrite-Free Solid-State Lithium Metal Batteries

Hanyu Huo, Zhen Li, Hanfei Zhang, Boris Mogwitz, Felix H. Richter, Karsten Albe, Yan Yu, Jürgen Janek

ACS Energy Letters· Volume 11· Issue 5
Publisher page

Abstract

Solid-state batteries (SSBs) with lithium metal anodes offer high energy density and safety but are limited by lithium dendrite formation arising from unstable Li/solid electrolyte (SE) interfaces. Here, a universal electro-chemo-mechanical interface engineering strategy is proposed to suppress dendrite growth. Parallel redox reactions between weak acids and lithium release hydrogen, avoiding the formation of electron-conductive species. An in situ formed LiI/Li 2 O/LiPAA composite interlayer with a graded structure stabilizes sulfide SE interfaces, blocks electron transport, and converts garnet SEs from lithiophobic to lithiophilic, reducing interfacial resistance by an order of magnitude. The interlayer also inhibits dendrite penetration in polymer SEs due to balanced rigidity and flexibility. As a result, uniform lithium deposition is achieved in symmetric and full cells. This work provides fundamental insight into SE interfacial chemistry and demonstrates a broadly applicable strategy for dendrite-free lithium metal SSBs.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Thermal Expansion and Ionic Conductivity

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Science and Engineering

University of Science and Technology of China

State Key Laboratory of Precision and Intelligent Chemistry

Institute of Physical Chemistry, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany

Center for Materials Research (ZfM), Justus Liebig University Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany

Technical University of Darmstadt, Materials Science, Materials Modelling, Otto-Berndt-Str. 3, Darmstadt D-64287, Germany

Funding

Bundesministerium für Bildung und Forschung · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Chinese Academy of Sciences · Liaoning Binhai Laboratory · National High-level Overseas Young Talent Program

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