【摘要】 采用ZIF-67作为自牺牲模板，制备了嵌入式的四氧化三钴/碳布（Co₃O₄/CC）柔性自支撑负极材料。碳布基体中交错的导电网络结构以及Co₃O₄氧缺陷的存在，加速了锂离子的传输、改善了结构稳定性。Co₃O₄/CC负极材料表现出了卓越的电池性能，在5 A/g的大电流密度下循环1 000次后放电比容量仍能达到518 mAh/g。Co₃O₄/CC负极的高容量主要来源于赝电容效应，而原位拉曼光谱中表面/近表面超快速氧化还原反应的发生佐证了赝电容的存在。更多还原

【Abstract】 The embedded Co₃O₄/CC flexible self-supporting anode material was prepared by using ZIF-67 as self-sacrificing template. Due to the interlaced conductive network structure and the existence of Co₃O₄ oxygen defect in carbon fabric matrix, the lithium ion transport is accelerated and the structural stability is improved. The Co₃O₄/CC anode material shows excellent battery performance, and the discharge specific capacity can still reach 518 mAh/g after 1 000 cycles at 5 A/g high current density. The high capacitance of Co₃O₄/CC anode is mainly due to pseudocapacitance effect, and the presence of pseudocapacitance is supported by ultra-fast surface/near-surface REDOX reaction detected by in-situ Raman spectroscopy.更多还原