Conventional commercial lithium-ion battery (LIBs) anode materials are being proven hard to meet the demands of the modern advanced energy market due to their disadvantages, such as limited rate capability and theoretical capacity. Elaborate design of novel anode materials with higher properties has become a major focus of research recently. In this work, a N-doped carbon ZnO/Co₃ZnC (named as ZnO/Co₃ZnC) composite is facilely fabricated employing metal-organic framework (MOF) as a sacrificial template. Except for the formation of N-doped carbon frameworks, the introduction of oxygen vacancies (O_V) as well as the unique and stable structure are also conducive to boosting lithium storage properties. As expected, the ZnO/Co₃ZnC based anode for LIBs displayed remarkable lithium storage properties, such as the specific capacity as high as 1162.4 mAh g^-1 (after 300 cycles under 0.2 A g^-1) and excellent high-rate performance (~ 533.8 and 473.3 mAh g^-1 under 0.5 and 1 A g^-1, respectively.) Consequently, this study reinforces the beneficial role of above-mentioned components to render ZnO/Co₃ZnC an appealing anode material for LIBs.

传统的商用锂离子电池（LIB）负极材料由于其倍率能力和理论容量有限等缺点，已被证明难以满足现代先进能源市场的需求。精心设计具有更高性能的新型负极材料已成为近来研究的主要焦点。在这项工作中，采用金属有机框架（MOF）作为牺牲模板，轻松制备了N掺杂的碳ZnO/Co ₃ ZnC（命名为ZnO/Co ₃ ZnC）复合材料。除了形成N掺杂的碳骨架外，氧空位（O _V）的引入以及独特而稳定的结构也有利于提高锂的存储性能。正如所料，ZnO/Co ₃用于 LIB 的 ZnC 基负极表现出卓越的锂存储性能，例如比容量高达 1162.4 mAh g ^-1（在 0.2  A  g ^-1下循环 300 次后）和优异的高倍率性能（~ 533.8 和 473.3 mAh g ^-1分别低于 0.5 和 1  A  g ^-1。）因此，本研究强化了上述成分的有益作用，使 ZnO/Co ₃ ZnC 成为 LIB 的有吸引力的负极材料。