🔋 Cathode Bulk Diffusion Dictates Low‐Temperature Performance in Li‐Ion Batteries: Beyond Electrolyte Engineering
📝 نفوذ تودهای Li+ در کاتد، نه الکترولیت، عامل اصلی افت عملکرد باتری لیتیوم-یون در دمای پایین است.
📚 Journal: Small #Small
📅 Date: 2026-10-08
🔬 Research Article
💡 Novelty & Significance:
This study overturns the electrolyte-centric view of low-temperature Li-ion battery failure by decoupling half-cells across 36 electrolytes. It proves cathode bulk Li⁺ diffusion, not interfacial kinetics, is the rate-determining step, with LFP diffusion times surging to 104 h at −30°C. This redirects research toward intrinsic cathode structural engineering.
🔗 10.1002/smll.76123
🏷 Li-ion battery · low temperature · cathode diffusion · NCM811 · LFP
Post #15002
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