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Updated: May 11, 2026
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
Interfacial Engineering of a Lithiophilic Li-Ag-Zn Ternary Alloy Anode for Long-Life Garnet-Based Solid-State
Pingmei Li1, Yibo Liu1, ShiYu Yu1
1State Key Lab of Tropic Ocean Engineering Materials and Materials Evaluation, School of Materials Science and Engineering, Hainan Provincial Key Laboratory of Research on Utilization of Si-Zr-Ti Resources, Hainan University, Haikou 570228, China.
Abstract:
Li6.4La3Zr1.4Ta0.6O12 (LLZTO)-based solid-state lithium metal batteries (SSLMBs) are regarded as promising candidates for next-generation energy storage, owing to their nonflammability and high energy density. Nevertheless, practical application is hindered by poor interfacial contact and structural degradation at the Li/LLZTO interface during stripping processes, which induces lithium dendrite growth and battery failure. In this study, a ternary Li-Ag-Zn alloy anode (LAZ10) is in-situ constructed by introducing 10% Ag and Zn into molten lithium, which markedly improves interfacial adhesion and facilitates Li+ transport. As a result, LAZ10/LLZTO/LAZ10 symmetric cells demonstrate ultralow interfacial resistance of 4 Ω·cm2, high critical current density (CCD) of 1.6 mA cm-2, and long cycle life of 2800 h at 0.3 mA cm-2. Furthermore, full cells LAZ10/LLZTO/LiFePO4 exhibit outstanding electrochemical performance. This work provides an effective interfacial design strategy for developing high-performance, dendrite-free SSLMBs.
