江苏科技信息 ›› 2019, Vol. 36 ›› Issue (10): 27-29.doi: 10.1004-7530/2019-36-10-27

• 基础研究 • 上一篇    下一篇

基于可回收植物内硅元素提取的新型电池材料研究

陈彦霖,吴君伟,邢馨心,成佳辉,高飞   

  1. 南京工业大学,江苏 南京 211816
  • 出版日期:2019-04-10 发布日期:2019-07-09
  • 作者简介:陈彦霖(1998— ),男,江苏无锡人,本科生;研究方向:新能源材料与器件。
  • 基金资助:
    南京工业大学2018年度大学生实践创新训练计划项目(201810291068Z)

Study on new battery materials based on the extraction of silicon elements from recyclable plants

Yanlin Chen,Junwei Wu,Xinxin Xing,Jiahui Cheng,Fei Gao   

  1. Nanjing University of Technology, Nanjing 211816, China
  • Online:2019-04-10 Published:2019-07-09

摘要:

锂离子电池具有高能量密度、循环寿命长等特点,使得锂离子电池在众多领域被广泛应用,锂离子电池的负极材料是影响电池性能的关键因素。文章通过一种方法,开拓性地将废弃物——熊猫粪便,作为原料制备三维多孔硅,从而制作了锂离子电池负极材料并加以电化学性能测试,该方法包括以下步骤:将熊猫粪便浸泡在盐酸溶液中清除金属离子杂质,用去离子水洗涤并干燥,在马弗炉中煅烧得洁白色的二氧化硅前驱体,然后将二氧化硅前驱体和氯化钠、镁粉进行充分研磨后放入管式炉中惰性气氛下反应,洗涤干燥后制得棕黄色的单质硅。该工艺实现了废物的回收利用,节能环保,成本低廉,实用性好。

关键词: 熊猫粪便, 锂离子电池负极材料, 单质硅

Abstract:

Lithium-ion batteries are widely used in many fields because of their high energy density and long cycle life. The negative material of lithium-ion batteries is the key factor affecting the performance of batteries. My team pioneered a method to prepare three-dimensional porous silicon from the waste panda dung as raw material, and then made a negative material for lithium-ion batteries. Also we test its electrochemical performance. The process realizes waste recycling, energy saving and environmental protection, low cost and good practicability.

Key words: panda feces, negative material of lithium ion battery, simple substance silicon

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