Dimolybdenum Paddlewheel Complexes with Cation Binding Sites as Electrolyte Additives to Manipulate the Solid-Electrolyte Interphase at Lithium Metal Anodes

2025/05/27 by Simon G. Gersib, Erik J. Askins, Matthew Li +7 · 1 voice
Engineering · Materials Science · #Advanced Battery Materials and Technologies #Advancements in Battery Materials #Supercapacitor Materials and Fabrication

paper · doi:10.1021/acsami.5c03254

openalex publication_date 2025/05/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/04/28

Abstract

induces immobilization of cationically charged aggregates (or products thereof) into the solid electrolyte interphase (SEI), imparting multiple beneficial functions. The modified SEI was found to protect the LMA against parasitic side reactions, produce modest but measurable improvements to Li plating properties (e.g., overpotential, surface structure, and Coulombic efficiency), and improve interfacial charge transport properties. The most notable benefit to battery cycling performance appears in calendar aging tests, which show that the presence of the additive protects the LMA from parasitic side reactions that would otherwise decrease overall cell cycling efficiency over time. Collectively, these data disclose a tactic for designing electrolyte additives using principles of organometallic synthesis.

Citations

• Generalized Gradient Approximation Made Simple
• A consistent and accurateab initioparametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu

Cited by

• Solubilizing dimolybdenum paddlewheel complexes for energy storage applications

Discussions

• Our first battery paper is now online in ACS AMI 🔋This study was led by Simon Gersib, who discovered that a certain Mo2 paddlewheel complex has beneficial effects on the Li metal SEI. Thanks to @ksen [bsky, 11 points, 1 comments]

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