What does this research mean for the field?

Modifying polypropylene separators with a Co-containing covalent organic framework (Co-COF) simultaneously optimizes ion transport kinetics and interfacial stability, enabling uniform lithium deposition and significantly improving the cycling stability of lithium metal batteries. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To develop a multifunctional cobalt-containing covalent organic framework separator modifier that simultaneously optimizes lithium-ion transport kinetics and interfacial stability in lithium metal batteries.

August 23, 2026Advanced Functional Materials

Tuning Ion Transport Kinetics and Interfacial Stability via a Co‐Containing Covalent Organic Framework for Stable Lithium Metal Batteries

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Authors

XWXinyuan WangZhengzhou University HZHao ZhangZhengzhou University XWXinyue WangQingdao University

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Implication

Experimental study demonstrates enhanced ion kinetics and dendrite suppression in lithium metal batteries, indicating a viable pathway for high-durability energy storage.

Key Points

To develop a multifunctional cobalt-containing covalent organic framework separator modifier that simultaneously optimizes lithium-ion transport kinetics and interfacial stability in lithium metal batteries.
Synthesized a cobalt-containing covalent organic framework coating on a polypropylene separator (Co-COF@PP) to homogenize lithium-ion flux and anchor PF6− anions.
Evaluated interfacial stability, desolvation kinetics, and cycling performance using Li||Li symmetric cells and LiFePO4||Li full cells.
Li||Li symmetric cells demonstrated stable lithium plating and stripping behavior for over 700 hours.
LiFePO4||Li full cells using the Co-COF@PP separator retained 90.1% capacity after 450 cycles at a 1 C rate, significantly outperforming pristine polypropylene separators.
Co-COF active sites promoted the formation of a robust, lithium fluoride-rich solid electrolyte interphase that suppressed dendrite growth.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a8aad977677a34114445c3a https://doi.org/10.1002/adfm.77875

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Implication

Experimental study demonstrates enhanced ion kinetics and dendrite suppression in lithium metal batteries, indicating a viable pathway for high-durability energy storage.

Tuning Ion Transport Kinetics and Interfacial Stability via a Co‐Containing Covalent Organic Framework for Stable Lithium Metal Batteries

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Key Points

Cite This Study

Tuning Ion Transport Kinetics and Interfacial Stability via a Co‐Containing Covalent Organic Framework for Stable Lithium Metal Batteries

Discussion

Member takes

Implication

Key Points

Cite This Study

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