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Regulating the Solvation Structure of Li⁺ Enables Chemical Prelithiation of Silicon-Based Anodes Toward High-Energy Lithium-Ion Batteries.

ABSTRACT: The solvation structure of Li⁺ in chemical prelithiation reagent plays a key role in improving the low initial Coulombic efficiency (ICE) and poor cycle performance of silicon-based materials. Nevertheless, the chemical prelithiation agent is difficult to dope active Li⁺ in silicon-based anodes because of their low working voltage and sluggish Li⁺ diffusion rate. By selecting the lithium-arene complex reagent with 4-methylbiphenyl as an anion ligand and 2-methyltetrahydrofuran as a solvent, the as-prepared micro-sized SiO/C anode can achieve an ICE of nearly 100%. Interestingly, the best prelithium efficiency does not correspond to the lowest redox half-potential (E_1/2), and the prelithiation efficiency is determined by the specific influencing f

SUBMITTER: He W

PROVIDER: S-EPMC10113421 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature

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Regulating the Solvation Structure of Li⁺ Enables Chemical Prelithiation of Silicon-Based Anodes Toward High-Energy Lithium-Ion Batteries.

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Regulating the Solvation Structure of Li+ Enables Chemical Prelithiation of Silicon-Based Anodes Toward High-Energy Lithium-Ion Batteries.

OmicsDI is part of the ELIXIR infrastructure

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Regulating the Solvation Structure of Li⁺ Enables Chemical Prelithiation of Silicon-Based Anodes Toward High-Energy Lithium-Ion Batteries.