Please wait a minute...
Acta Physico-Chimica Sinica  2010, Vol. 26 Issue (05): 1233-1238    DOI: 10.3866/PKU.WHXB20100530
ELECTROCHEMISTRY     
Preparation of an Ionic Liquid Gel Polymer Electrolyte and Its Compatibility with a LiFePO4 Cathode
CUI Wen-Yu, AN Mao-Zhong, YANG Pei-Xia
School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, P. R. China
Download:   PDF(1548KB) Export: BibTeX | EndNote (RIS)      

Abstract  

An ionic liquid gel polymer electrolyte (ILGPE) based on 1-ethyl-3-methyl-imidazoliumhexafluorophosphate (EMIPF6), poly(vinylidenefluoride-hexafluoropropylene) (P(VDF-HFP) and LiPF6 was prepared by a solution casting method. Its ion transport characteristics and compatibility with LiFePO4 were investigated by cyclic voltammetry (CV), chronoamperometry, galvanostatic charge-discharge and electrochemical impedance spectroscopy (EIS). The results show that the ionic conductivity and electrochemical window at room temperature are 1.650×10-3 S·cm-1 and 5.0 V, respectively. The lithiation/delithiation reversibility was improved because of the formation of a passivation layer on the surface of the electrode during the charge-discharge cycles.



Key wordsLithium-ion battery      Ionic liquid gel polymer electrolyte      EMIPF6      Cathode materials      Compatibility     
Received: 14 October 2009      Published: 06 April 2010
MSC2000:  O646  
  TM912.9  
Corresponding Authors: AN Mao-Zhong     E-mail: mzan@hit.edu.cn
Cite this article:

CUI Wen-Yu, AN Mao-Zhong, YANG Pei-Xia. Preparation of an Ionic Liquid Gel Polymer Electrolyte and Its Compatibility with a LiFePO4 Cathode. Acta Physico-Chimica Sinica, 2010, 26(05): 1233-1238.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20100530     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2010/V26/I05/1233

[1] HE Lei, XU Jun-Min, WANG Yong-Jian, ZHANG Chang-Jin. LiFePO4-Coated Li1.2Mn0.54Ni0.13Co0.13O2 as Cathode Materials with High Coulombic Efficiency and Improved Cyclability for Li-Ion Batteries[J]. Acta Physico-Chimica Sinica, 2017, 33(8): 1605-1613.
[2] TIAN Ai-Hua, WEI Wei, QU Peng, XIA Qiu-Ping, SHEN Qi. One-Step Synthesis of SnS2 Nanoflower/Graphene Nanocomposites with Enhanced Lithium Ion Storage Performance[J]. Acta Physico-Chimica Sinica, 2017, 33(8): 1621-1627.
[3] LIAO You-Hao, LI Wei-Shan. Research Progresses on Gel Polymer Separators for Lithium-Ion Batteries[J]. Acta Physico-Chimica Sinica, 2017, 33(8): 1533-1547.
[4] JU Guang-Kai, TAO Zhan-Liang, CHEN Jun. Controllable Preparation and Electrochemical Performance of Self-assembled Microspheres of α-MnO2 Nanotubes[J]. Acta Physico-Chimica Sinica, 2017, 33(7): 1421-1428.
[5] GAN Yong-Ping, LIN Pei-Pei, HUANG Hui, XIA Yang, LIANG Chu, ZHANG Jun, WANG Yi-Shun, HAN Jian-Feng, ZHOU Cai-Hong, ZHANG Wen-Kui. The Effects of Surfactants on Al2O3-Modified Li-rich Layered Metal Oxide Cathode Materials for Advanced Li-ion Batteries[J]. Acta Physico-Chimica Sinica, 2017, 33(6): 1189-1196.
[6] GU Ze-Yu, GAO Song, HUANG Hao, JIN Xiao-Zhe, WU Ai-Min, CAO Guo-Zhong. Electrochemical Behavior of MWCNT-Constraint SnS2 Nanostructure as the Anode for Lithium-Ion Batteries[J]. Acta Physico-Chimica Sinica, 2017, 33(6): 1197-1204.
[7] BAI Xue-Jun, HOU Min, LIU Chan, WANG Biao, CAO Hui, WANG Dong. 3D SnO2/Graphene Hydrogel Anode Material for Lithium-Ion Battery[J]. Acta Physico-Chimica Sinica, 2017, 33(2): 377-385.
[8] NIU Xiao-Ye, DU Xiao-Qin, WANG Qin-Chao, WU Xiao-Jing, ZHANG Xin, ZHOU Yong-Ning. AlN-Fe Nanocomposite Thin Film:A New Anode Material for Lithium-Ion Batteries[J]. Acta Physico-Chimica Sinica, 2017, 33(12): 2517-2522.
[9] MIAO Sheng-Yi, WANG Xian-Fu, YAN Cheng-Lin. Self-Roll-Up Technology for Micro-Energy Storage Devices[J]. Acta Physico-Chimica Sinica, 2017, 33(1): 18-27.
[10] WANG Jing-Lun, YAN Xiao-Dan, YONG Tian-Qiao, ZHANG Ling-Zhi. Nitrile-Modified 2,5-Di-tert-butyl-hydroquinones as Redox Shuttle Overcharge Additives for Lithium-Ion Batteries[J]. Acta Physico-Chimica Sinica, 2016, 32(9): 2293-2300.
[11] LUO Wen, HUANG Lei, GUAN Dou-Dou, HE Ru-Han, LI Feng, MAI Li-Qiang. A Selenium Disulfide-Impregnated Hollow Carbon Sphere Composite as a Cathode Material for Lithium-Ion Batteries[J]. Acta Physico-Chimica Sinica, 2016, 32(8): 1999-2006.
[12] YANG Zu-Guang, HUAWei-Bo, ZHANG Jun, CHEN Jiu-Hua, HE Feng-Rong, ZHONG Ben-He, GUO Xiao-Dong. Enhanced Electrochemical Performance of LiNi0.5Co0.2Mn0.3O2 Cathode Materials at Elevated Temperature by Zr Doping[J]. Acta Physico-Chimica Sinica, 2016, 32(5): 1056-1061.
[13] CAI Li-Li, WEN Yue-Hua, CHENG Jie, CAO Gao-Ping, YANG Yu-Sheng. Synthesis and Electrochemical Performance of a Benzoquinone-Based Polymer Anode for Aqueous Lithium-Ion Batteries[J]. Acta Physico-Chimica Sinica, 2016, 32(4): 969-974.
[14] KOU Jian-Wen, WANG Zhao, BAO Li-Ying, SU Yue-Feng, HU Yu, CHEN Lai, XU Shao-Yu, CHEN Fen, CHEN Ren-Jie, SUN Feng-Chun, WU Feng. Layered Lithium-Rich Cathode Materials Synthesized by an Ethanol-Based One-Step Oxalate Coprecipitation Method[J]. Acta Physico-Chimica Sinica, 2016, 32(3): 717-722.
[15] ZHANG Ji-Bin, HUAWei-Bo, ZHENG Zhuo, LIU Wen-Yuan, GUO Xiao-Dong, ZHONG Ben-He. Preparation and Electrochemical Performance of Li[Ni1/3Co1/3Mn1/3]O2 Cathode Material for High-Rate Lithium-Ion Batteries[J]. Acta Physico-Chimica Sinica, 2015, 31(5): 905-912.