材料科学
阴极
电子转移
氧化还原
电子
成核
纳米技术
瓶颈
动力学
化学物理
阳极
工作(物理)
化学动力学
电池(电)
氧还原反应
传质
储能
化学工程
极化(电化学)
密度泛函理论
锂(药物)
反应机理
析氧
吸附
分解
反应速率
同步加速器
可逆反应
化学反应工程
电场
电流密度
能量密度
电子传输链
作者
Mingyang Liu,Xiaopeng Jin,Yinkun Gao,Shuyun Guan,Jinling Wang,Chunyang Jiang,Yongming Zhu,Xudong Li
摘要
ABSTRACT Lithium oxygen batteries hold great promise as high‐energy‐density storage technologies, yet their practical implementation is hindered by sluggish cathode redox kinetics. A key bottleneck lies in the inefficient electron transfer associated with the formation and decomposition of the LiO 2 intermediate, which leads to severe polarization and rapid capacity fade. Herein, we propose a facet‐induced electron‐bridge engineering to boost LiO 2 ‐mediated reaction kinetics. By harnessing a Mott–Schottky built‐in electric field across the heterointerface, we drive directional charge separation that simultaneously tailors electron density and sorption microenvironments. The resulting intermediate‐binding energetics reprogram the reaction trajectory, affording precise manipulation over Li 2 O 2 nucleation kinetics and the subsequent pathways governing its growth and decomposition. Consequently, the engineered cathode thus delivers extended cycle life with a substantially reduced overpotential. This work provides a general principle for regulating reaction intermediates and accelerating electron transfer via crystal plane optimization and interfacial engineering, offering a reliable strategy for high‐performance electrocatalysts.
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