Weakly Solvating Ether‐Based Electrolyte Constructing Anion‐Derived Solid Electrolyte Interface in Graphite Anode toward High‐Stable Potassium‐Ion Batteries

Qilin Feng; Jiangmin Jiang; Shuang Li; Gaoyu Zhou; Xiangkai Kong; Yaxin Chen; Quanchao Zhuang; Zhicheng Ju

doi:10.1002/smll.202406506

September 23, 2024Small

Weakly Solvating Ether‐Based Electrolyte Constructing Anion‐Derived Solid Electrolyte Interface in Graphite Anode toward High‐Stable Potassium‐Ion Batteries

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Key Points

An anion-derived solid electrolyte interface forms via a weakly solvating electrolyte, mitigating solvent co-intercalation and improving overall cell stability.
Aggregated ion pairs reach 69% in the electrolyte solvation structure, which enables a reversible capacity of 269 mAh g at the graphite anode.
Assessment of the cation solvation structure reveals uniform interface formation, which may enable highly stable graphite anodes in potassium-ion batteries.

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Implication

Experimental analysis demonstrates an anion-derived solid electrolyte interface on graphite anodes, indicating a route toward high-stability potassium-ion batteries.

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Cite This Study

Feng et al. (2024) studied this question.

synapsesocial.com/papers/68e579c7b6db643587519223 https://doi.org/10.1002/smll.202406506

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Weakly Solvating Ether‐Based Electrolyte Constructing Anion‐Derived Solid Electrolyte Interface in Graphite Anode toward High‐Stable Potassium‐Ion Batteries

Key Points

No abstract yet

Implication

Discussion

Cite This Study

Weakly Solvating Ether‐Based Electrolyte Constructing Anion‐Derived Solid Electrolyte Interface in Graphite Anode toward High‐Stable Potassium‐Ion Batteries

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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