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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
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Single-crystal orientation lithium for ultra-stable all-solid-state batteries
Qidong Li1, Likun Chen1, Junyu Jiao2
1Shenzhen All-Solid-State Lithium Battery Electrolyte Engineering Research Center, Institute of Materials Research (IMR), Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
National Science Review
|January 29, 2026
Summary
Researchers solved lithium dendrite issues in solid-state batteries by creating <110>-oriented single-crystal lithium metal. This innovation ensures stable cycling and enables practical, safe, high-energy all-solid-state lithium metal batteries.
Area of Science:
- Materials Science
- Electrochemistry
- Battery Technology
Background:
- All-solid-state lithium metal batteries (ASLMBs) offer high energy and safety but are hindered by lithium dendrite formation.
- The underlying cause of dendrites in polycrystalline lithium has been unclear, impeding practical application.
Purpose of the Study:
- To elucidate the fundamental mechanism of lithium dendrite formation in ASLMBs.
- To develop a strategy for suppressing lithium dendrites and enhancing battery stability.
Main Methods:
- Investigated anisotropic exfoliation of polycrystalline lithium due to varying Li atom stripping energies.
- Engineered <110>-oriented single-crystal lithium metal using a Li2Ga (131) lattice-matching template.
- Evaluated battery performance and cycling stability of ASLMBs with engineered lithium anodes.
Main Results:
- Identified anisotropic exfoliation and void formation in polycrystalline lithium as the cause of dendrites and interfacial cracks.
- <110>-oriented single-crystal lithium exhibited layer-by-layer stripping/plating, preventing void formation and suppressing dendrites.
- ASLMBs with <110>-oriented single-crystal lithium achieved over 10,000 cycles at 25°C with ultralong stability.
Conclusions:
- Regulating lithium metal crystal orientation is a fundamental solution to dendrite formation.
- The <110>-oriented single-crystal lithium anode enables stable and practical ASLMBs.
- This breakthrough paves the way for the real-world application of high-performance ASLMBs.
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