Active Diluent-Anion Synergy Strategy Regulating Nonflammable Electrolytes for High-Efficiency Li Metal Batteries,Angewandte Chemie International Edition

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Active Diluent-Anion Synergy Strategy Regulating Nonflammable Electrolytes for High-Efficiency Li Metal Batteries
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2024-01-02 , DOI: 10.1002/anie.202317176
Ran He ₁ , Kuirong Deng ₁ , Daize Mo ₁ , Xiongcong Guan ₁ , Yuanyuan Hu ₂ , Kai Yang ₂ , Zhenhua Yan ₃ , Haijiao Xie ₄

Affiliation

Nonflammable dimethylacetamide (DMAC)-based localized high concentration electrolyte (LHCE-DFB) was regulated by functional diluent 1,2-difluorobenzene (DFB) via active diluent-anion synergy strategy. DFB can cooperate with FSI⁻ anion to construct robust LiF-rich SEI and CEI owing to its good fluorine-donating activity and low LUMO, effectively enhancing the interfacial stability of the Li metal anodes and LiNi_0.8Co_0.1Mn_0.1O₂ (NCM811) cathodes.

中文翻译：

活性稀释剂-阴离子协同策略调节高效锂金属电池的不可燃电解质

基于不可燃二甲基乙酰胺（DMAC）的局部高浓度电解质（LHCE-DFB）通过功能稀释剂1,2-二氟苯（DFB）通过活性稀释剂-阴离子协同策略进行调节。由于其良好的供氟活性和低LUMO，DFB可以与FSI ^-阴离子配合构建坚固的富含LiF的SEI和CEI，有效增强Li金属负极和LiNi _0.8 Co _0.1 Mn _0.1 O ₂ (NCM811)的界面稳定性阴极。

更新日期：2024-01-02

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