The intermolecular interaction enables ordered ion transport in quasi-solid-state electrolyte for ultra-long life lithium-metal battery

Ou, Chuan; Ye, Siyang; Li, Zhaojie; Zheng, Xueying; Tian, Fei; Lei, Danni; Wang, Chengxin

doi:10.1016/j.ensm.2024.103277

Energy Storage Materials

2024

DOI: 10.1016/j.ensm.2024.103277

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The intermolecular interaction enables ordered ion transport in quasi-solid-state electrolyte for ultra-long life lithium-metal battery

Chuan Ou,

Siyang Ye,

Zhaojie Li

et al.

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Cited by 4 publications

References 53 publications

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Isocyanurate‐Derivative Enables Highly Compatible Poly‐Dioxane Electrolyte for Dendrite‐Free Li Metal Batteries

Wang,

Liu,

Cui

et al. 2024

Adv Funct Materials

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The Li+ transport kinetics and electrochemical stability of advanced solid‐state Li metal batteries (SLMBs) are seriously limited by the actual electrolyte compositions. Here, a novel polyether‐based electrolyte (PTGDOX) is presented through in situ co‐polymerization by integrating 1,3‐dioxane with a multifunctional 1,3,5‐triglycidyl isocyanurate additive. The isocyanurate group in PTGDOX not only provides abundant coordinating sites for Li+ transfer and restricts the movement of anions, but also prompts a beneficial inorganic‐rich solid electrolyte interface on the Li electrode. As a result, PTGDOX exhibits a remarkably increased ionic conductivity of 0.48 mS cm−1 at 30 °C and a reasonable Li‐ion transference number of 0.68, enabling the Li||Li symmetric cells to stably cycle for over 2000 h at 1 mAh cm−2. Meanwhile, the assembled Li||LiFePO4 exhibit a 97.4% capacity retention after 700 cycles at 3 C with excellent thermal stability. Moreover, PTGDOX also demonstrates excellent interfacial compatibility with high‐voltage LiNi0.8Co0.1Mn0.1O2 cathode. As such, this work provides a facile and accessible strategy for designing interface‐stable polymer electrolytes and achieving practical dendrite‐free SLMBs.

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Isocyanurate‐Derivative Enables Highly Compatible Poly‐Dioxane Electrolyte for Dendrite‐Free Li Metal Batteries

Wang,

Liu,

Cui

et al. 2024

Adv Funct Materials

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Tailored Engineering on the Interface Between Lithium Metal Anode and Solid‐State Electrolytes

Zhou,

Xiong,

Peng

et al. 2024

Energy & Environ Materials

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The replacement of non‐aqueous organic electrolytes with solid‐state electrolytes (SSEs) in solid‐state lithium metal batteries (SLMBs) is considered a promising strategy to address the constraints of lithium‐ion batteries, especially in terms of energy density and reliability. Nevertheless, few SLMBs can deliver the required cycling performance and long‐term stability for practical use, primarily due to suboptimal interface properties. Given the diverse solidification pathways leading to different interface characteristics, it is crucial to pinpoint the source of interface deterioration and develop appropriate remedies. This review focuses on Li|SSE interface issues between lithium metal anode and SSE, discussing recent advancements in the understanding of (electro)chemistry, the impact of defects, and interface evolutions that vary among different SSE species. The state‐of‐the‐art strategies concerning modified SEI, artificial interlayer, surface architecture, and composite structure are summarized and delved into the internal relationships between interface characteristics and performance enhancements. The current challenges and opportunities in characterizing and modifying the Li|SSE interface are suggested as potential directions for achieving practical SLMBs.

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In situ polymerized ether-based polymer electrolytes towards practical lithium metal batteries

Peng,

Fu,

Wei

et al. 2025

Chem. Commun.

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The intermolecular interaction enables ordered ion transport in quasi-solid-state electrolyte for ultra-long life lithium-metal battery

Cited by 4 publications

References 53 publications

Isocyanurate‐Derivative Enables Highly Compatible Poly‐Dioxane Electrolyte for Dendrite‐Free Li Metal Batteries

Isocyanurate‐Derivative Enables Highly Compatible Poly‐Dioxane Electrolyte for Dendrite‐Free Li Metal Batteries

Tailored Engineering on the Interface Between Lithium Metal Anode and Solid‐State Electrolytes

In situ polymerized ether-based polymer electrolytes towards practical lithium metal batteries

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