Improved electrochemical performance of solid-state lithium metal batteries with stable SEI and CEI layers <i>via in situ</i> formation technique

Mengesha, Tadesu Hailu; Beshahwured, Shimelis Lemma; Hendri, Yola Bertilsya; Walle, Kumlachew Zelalem; Wu, Yi-Shiuan; Yang, Chun-Chen

doi:10.1039/d3ta07835c

Cited by 9 publications

(2 citation statements)

References 74 publications

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“…Various polymer coatings have been applied based on Lewis acid–base interactions to improve the contact area between ceramics and polymers and increase the concentration of free Li ions at the interface, such as polyethylene carbonate (PEC), polydopamine (PDA), − poly-1,3-dioxolane (PDOL), and poly(methyl methacrylate) (PMMA) . Among them, PDA has been widely studied owing to its excellent binding properties and simple modification methods.…”

Section: Introductionmentioning

confidence: 99%

Diversifying Ion-Transport Pathways of Composite Solid Electrolytes for High-Performance Solid-State Lithium-Metal Batteries

Han,

Li,

Zhang

2024

ACS Appl. Mater. Interfaces

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The application of composite solid electrolytes (CSEs) in solid-state lithium-metal batteries is limited by the unsatisfactory ionic conductivity underpinned by the low concentration of free lithium ions. Herein, we propose an interface design strategy where an amine silane linker is employed as a coupling agent to graft the Li7La3Zr2O12 (LLZO) ceramic nanofibers to the poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) polymer matrix to enhance their interaction. The hydrogen bonding between amino-functionalized LLZO (NH2@LLZO) and PVDF-HFP not only effectively induces a uniform incorporation of high-content nanofibers (50 wt %) into the polymer matrix but also furnishes sufficient continuous surfaces to weaken the complexation between PVDF-HFP and Li-ion carriers. Additionally, introduction of the hydrogen bond and Lewis acid–base interplay strengthens the interfacial interactions between NH2@LLZO and lithium salts that release more free lithium ions for efficient interfacial transport. The impact of the linker’s structure on the dissociation capacity of lithium salts is systematically studied from the steric effect perspective, which affords insights into interface design. Conclusively, the composite solid electrolyte achieves a high ionic conductivity (5.8 × 10–4 S cm–1) by synergy of multiple transport channels at ceramic, polymer, and their interface, which effectively regulates the lithium deposition behavior in symmetric cells. The excellent compatibility of the electrolyte with both LiFePO4 and LiNi0.8Co0.1Mn0.1O2 cathodes also results in a long lifetime and a high rate capability for full cells.

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Section: Introductionmentioning

confidence: 99%

Diversifying Ion-Transport Pathways of Composite Solid Electrolytes for High-Performance Solid-State Lithium-Metal Batteries

Han,

Li,

Zhang

2024

ACS Appl. Mater. Interfaces

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“…Severe side reactions occurring between the LMA and liquid electrolyte (LE) lead to failure in the formation of a stable solid electrolyte interface (SEI) film, and the continuous side reactions will consume a large amount of the LE. 6,7 Moreover, Li + is unevenly deposited, accompanied by the proliferation of Li dendrites. 8 Li dendrites have large specific areas, resulting in the pulverization of the anode.…”

Section: Introductionmentioning

confidence: 99%

Tailoring the interface of lithium metal batteries with an in situ formed gel polymer electrolyte

Jia,

Xue,

Huo

et al. 2024

J. Mater. Chem. A

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Synthesis of green anode material for lithium-ion battery from orthodontic waste by fuzzy logic

Ashraf,

Karahan,

Şen

2024

J Appl Electrochem

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Improved electrochemical performance of solid-state lithium metal batteries with stable SEI and CEI layers via in situ formation technique

Abstract: Lithium-metal batteries (LMBs) using sandwich-type hybrid solid electrolytes (SHSEs) have been increasingly popular because of their high safety and improved electrochemical performance. However, the inadequate electrodes−SHSE interfacial contact markedly impedes...

Cited by 9 publications

References 74 publications

Diversifying Ion-Transport Pathways of Composite Solid Electrolytes for High-Performance Solid-State Lithium-Metal Batteries

Diversifying Ion-Transport Pathways of Composite Solid Electrolytes for High-Performance Solid-State Lithium-Metal Batteries

Tailoring the interface of lithium metal batteries with an in situ formed gel polymer electrolyte

Synthesis of green anode material for lithium-ion battery from orthodontic waste by fuzzy logic

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