In situ synthesis of Cu2O–CuO–C supported on copper foam as a superior binder-free anode for long-cycle lithium-ion batteries†,Materials Chemistry Frontiers

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In situ synthesis of Cu2O–CuO–C supported on copper foam as a superior binder-free anode for long-cycle lithium-ion batteries†
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2018-10-08 00:00:00 , DOI: 10.1039/c8qm00366a
Xiaoming Lin _{1,

2,

3,

4} , Jia Lin _{1,

2,

3,

4} , Jiliang Niu _{1,

2,

3,

4} , Jinji Lan _{1,

2,

3,

4} , R. Chenna Krishna Reddy _{1,

2,

3,

4} , Yuepeng Cai _{1,

2,

3,

4} , Jincheng Liu _{4,

5,

6,

7} , Gang Zhang _{4,

8,

9,

10,

11}

Affiliation

The present study reports a facile solvothermal method for a Cu-based metal–organic framework [Cu(BDC)]_n (BDC = 1,4-benzenedicarboxylate) grown on porous copper foam, which is then in situ transformed into a multicomponent active Cu₂O–CuO–C on copper foam for the first time by annealing under an air atmosphere. Scanning electron microscopy imaging indicates that the Cu₂O–CuO–C composites were successfully immobilized on copper foam with high stability and good adhesion. Benefiting from the synergistic multidoping effects, the porous Cu₂O–CuO–C/Cu with an optimized composition as an anode material for lithium-ion batteries (LIBs) exhibits a high discharge capacity (1321 mA h g⁻¹) after 500 cycles at 0.1 A g⁻¹. Moreover, this electrode presents superior cycling stability and rate capability. The introduction of the highly conductive copper foam substrate not only can act as a supporting substrate for immobilization of Cu₂O–CuO–C composites but can also be regarded as an unimpeded highway for rapid charge transfer, resulting in the significant enhancement of lithium storage when tested as LIB anodes.

中文翻译：

原位合成在泡沫铜上负载的Cu ₂ O–CuO–C作为长周期锂离子电池的高级无粘结剂阳极†

本研究报告了一种在多孔铜泡沫上生长的基于铜的金属有机框架[Cu（BDC）] _n（BDC = 1,4-苯二甲酸）的简便溶剂热方法，然后将其原位转化为多组分活性铜通过在空气气氛下退火，首次在泡沫铜上使用₂ O–CuO–C。扫描电子显微镜成像表明，Cu ₂ O–CuO–C复合材料已成功固定在泡沫铜上，具有较高的稳定性和良好的附着力。受益于协同多掺杂效应，具有优化组成的多孔Cu ₂ O–CuO–C / Cu作为锂离子电池（LIBs）的负极材料具有较高的放电容量（1321 mA hg ^-1）在0.1 A g ^-1下500个循环之后。此外，该电极还具有出色的循环稳定性和倍率性能。高导电性的泡沫铜基板的引入不仅可以作为固定Cu ₂ O–CuO–C复合材料的支撑基板，而且还可以被视为畅通无阻的快速电荷转移高速公路，从而大大提高了锂的储存能力作为LIB阳极进行测试时。

更新日期：2018-10-08

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