Formulating Electrophilic Electrolyte for In Situ Stabilization of 4.8 V Li-Rich Batteries with 100% Initial Coulombic Efficiency.

• Tác giả: Xinhe Bao, Zhihong Bi, Tongle Chen, Xiaofeng Li, Shihao Liao, Gongrui Wang, Zhong-Shuai Wu, Endian Yang, Yan Yu, Anping Zhang
• Ngôn ngữ: eng
• Ký hiệu phân loại: 539.72112 Atomic and nuclear physics
• Thông tin xuất bản: Germany : Angewandte Chemie (International ed. in English) , 2025
• Bộ sưu tập: NCBI
• ID: 753776
• Chủ đề: 1. Formulating; 2. Electrophilic; 3. Electrolyte

Tóm tắt

Lithium-rich layered oxide (LLO) cathodes are expected to overcome the energy density limitations, but their applicability is hindered by low initial Coulombic efficiency (ICE) and unstable electrode-electrolyte interphases with sluggish kinetics. Here an elaborate electrophilic electrolyte is proposed that effectively stabilizes the surface lattice oxygen of the LLO cathode, facilitates the formation of dense and fast-ion-transport electrode-electrolyte interphases, and prevents Li-dendrites on the anode. The nucleophilic reaction mechanism driven by the electrolyte enables LLO to exhibit a reversible capacity of 310 mAh g