🔋 From Micro to Nano: Boosting γ-MnO2 Cathode Performance through Particle Size Engineering
📝 مهندسی اندازه ذرات γ-MnO2 نشان میدهد نانوذرات با مسیرهای کوتاهتر Li+ ظرفیت ۱۶۰.۱ mAh g−1 و نگهداشت ۷۰٪ پس از ۴۰۰ چرخه در ۳C را فراهم میکنند.
📚 Journal: Nano Letters #NanoLetters
📅 Date: 2026-10-12
🔬 Research Article
💡 Novelty & Significance:
Nanosized γ-MnO2 (62 nm) outperforms micron-sized counterparts, delivering 160.1 mAh g–1, 66% capacity at 5C, and 70% retention after 400 cycles. Enhanced capacitive contribution (68.9%) and homogeneous solid-solution intercalation avoid phase-transition bottlenecks. This establishes particle-size engineering as a simple, effective route to fast-charging, long-life MnO2 cathodes.
🔗 10.1021/acs.nanolett.6c04092
🏷 gamma-MnO2 · particle size · lithium-ion battery · fast charging · intercalation kinetics
Post #15184
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