基于杨梅单宁制备三维有序多孔碳内嵌纳米Cu_2O-CuO高性能锂离子电池负极材料

doi:10.19677/j.issn.1004-7964.2019.02.001

皮革科学与工程 ›› 2019, Vol. 29 ›› Issue (02): 5-.doi: 10.19677/j.issn.1004-7964.2019.02.001

基于杨梅单宁制备三维有序多孔碳内嵌纳米Cu_2O-CuO高性能锂离子电池负极材料

制革清洁技术国家工程实验室(四川大学);皮革化学与工程教育部重点实验室(四川大学);

出版日期:2019-04-12 上线日期:2019-04-12
基金资助:
国家自然科学基金(21676171);; 霍英东教育基金会高等院校青年教师基金(61099)

Bayberry Tannin -enabled Three Dimensional Ordered Porous Carbon Encapsulated Nanoscaled Cu2O-CuO as High-performance Anode Materials of Li-ion Battery

1.National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China; 2. Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China

Online:2019-04-12 Published:2019-04-12

摘要/Abstract

摘要： 本文以聚苯乙烯球为模板,杨梅单宁/Cu2+混合物为前驱体,制备了三维有序多孔碳内嵌纳米Cu_2O-CuO(3D Cu_2O-CuO@C)锂离子电池负极材料。采用多种技术手段研究了3D Cu_2O-CuO@C结构形貌及其电化学性能。3D Cu_2O-CuO@C在电流密度为1.0 A·g-1的循环性能测试中,500次循环后其放电比容量为635.8 m A·h·g~(-1),表现出了高循环稳定性。在电流密度为8.0 A·g-1的大电流条件下,其放电比容量仍维持在173.4 m A·h·g~(-1),表现出了优异的高倍率性能。

关键词: 杨梅单宁, 三维有序多孔碳, 纳米Cu2O-CuO, 高循环稳定性, 锂离子电池负极材料

Abstract: Three dimensional ordered porous carbon encapsulated nanoscaled Cu2O -CuO (3D Cu2O -CuO@C) was prepared as the anode materials of Li-ion battery by using polystyrene sphere as template and the mixture of bayberry tannin/Cu2+ as precursor. The morphology and electrochemical properties of 3D Cu2O-CuO@C were fully investigated by various techniques. The 3D Cu2O-CuO@C electrode delivered the specific capacity high up to 635.8 mA·h·g -1 after 500 discharge/charge cycles at the current density of 1.0 A·g-1. At the high current density of 8.0 A·g-1, the specific capacity still reached 173.4 mA·h·g-1, exhibiting appreciable high-rate capability.

Key words: bayberry tannin, three dimensional ordered porous carbon, nanoscaled Cu2O -CuO, high cycling stability; anode material of lithium ion battery

中图分类号:

TM912

唐奕, 李会芳, 王晓玲, 黄鑫, 廖学品, 石碧, . 基于杨梅单宁制备三维有序多孔碳内嵌纳米Cu_2O-CuO高性能锂离子电池负极材料[J]. 皮革科学与工程, 2019, 29(02): 5-.

TANG Yi, LI Huifang, WANG Xiaoling, HUAG Xin, LIAO Xuepin, SHI Bi. Bayberry Tannin -enabled Three Dimensional Ordered Porous Carbon Encapsulated Nanoscaled Cu2O-CuO as High-performance Anode Materials of Li-ion Battery[J]. Leather Science and Engineering, 2019, 29(02): 5-.

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基于杨梅单宁制备三维有序多孔碳内嵌纳米Cu_2O-CuO高性能锂离子电池负极材料

Bayberry Tannin -enabled Three Dimensional Ordered Porous Carbon Encapsulated Nanoscaled Cu2O-CuO as High-performance Anode Materials of Li-ion Battery

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