Transformative Effect of Li Salt for Proactively Mitigating Interfacial Side Reactions in Sodium‑Ion Batteries (IMAGE)
Caption
- LiPF6 integration into sodium-ion battery electrolytes strengthens solid electrolyte interphase (SEI) film and stabilizes O3 electrode surfaces, enhancing cycleability with 92.7% at 400 cycles.
- Li-based SEI exhibits reduced solubility, effectively suppressing sodium-ion and electron leakage, and mitigating electrolyte decomposition on hard carbon electrode.
- The formation of Li-ion pillars on O3-type electrode surfaces significantly reduces oxygen release and electrolyte degradation, resulting in improved capacity retention.
Credit
Jooeun Byun, Joon Ha Chang, Chihyun Hwang, Chae Rim Lee, Miseung Kim, Jun Ho Song, Boseong Heo, Sunghun Choi, Jong Hyeok Han, Hee-Jae Jeon, Beom Tak Na, Youngjin Kim, Ji-Sang Yu, Hyun-seung Kim.
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CC BY-NC-ND