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研究论文

新型锂电池用复合隔膜的制备及其电化学性能表征

  • 程琥 ,
  • 杜洪彦
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  • 厦门大学化学系固体表面物理化学国家重点实验室,厦门大学化学系固体表面物理化学国家重点实验室,厦门大学化学系固体表面物理化学国家重点实验室 福建厦门361005 ,福建厦门361005 ,福建厦门361005

收稿日期: 2004-08-28

  修回日期: 2004-08-28

  网络出版日期: 2004-08-28

Preparation and Electrochemical Performance of New Composite Seperators for Lithium-ion Batteries

  • CHENG Hu ,
  • DU Hong-yan
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  • (*) , Xiamen Univ., Xiamen 361005, China

Received date: 2004-08-28

  Revised date: 2004-08-28

  Online published: 2004-08-28

摘要

利用浸渍法在聚丙烯微孔膜(Celgard2400)表面涂覆掺有纳米二氧化硅的聚氧乙烯(PEO),制备了新型锂电池用复合隔膜.采用交流阻抗法、扣式电池充放电等实验技术测试了复合隔膜的电化学性能.

本文引用格式

程琥 , 杜洪彦 . 新型锂电池用复合隔膜的制备及其电化学性能表征[J]. 电化学, 2004 , 10(3) : 303 -306 . DOI: 10.61558/2993-074X.1578

Abstract

New composite seperators for lithium ion batteries were prepared by coating PEO mixed with nanosize SiO_(2)onto microporous polypropylene(PP) seperators. Highly conductive electrolytes were prepared by soaking them in an electrolyte solution. With these composite separators, the lithium ion cell consisting of Li anode and LiNi_(0.8)Co_(0.2)O_(2)cathode were assembled. The high initial discharge capacity and good capacity retention were obtained through the cell.

参考文献

[1] VenugopalG,MooreJ,HowardJ,etal.Characterizationofmicroporousseparatorsforlithium-ionbatteries[J].J.PowerSources,1999,77:34. [2] KuribayashiI.Characterizationofcompositecellulosicseparatorsforrechargeablelithium-ionbatteries[J].J.PowerSources,1996,63:87. [3] DongWonKim,JangMyoun,JongHanChun,etal.Electrochemicalperformancesoflithium-ioncellspreparedwithpolyethyleneoxide-coatedseparators[J\〗.ElectrochemistryCommunications,2001,(3):535538. [4] YangY,ChengH,HongHY.Preparationofnewcompositeseperatorsforlithium-ionbatteries[P].CN1192941,2003.10.
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