| 锂盐对交联PPCMA聚合物电解质性能的影响 |
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| 引用本文： | 禹筱元,肖敏,王拴紧,董先明,孟跃中. 锂盐对交联PPCMA聚合物电解质性能的影响[J]. 高分子材料科学与工程, 2010, 0(4): 82-84,88 |
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| 作者姓名： | 禹筱元 肖敏 王拴紧 董先明 孟跃中 |
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| 作者单位： | 华南农业大学理学院生物材料研究所;光电材料与技术国家重点实验室;中山大学光电及复合材料研究院; |
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| 基金项目： | 广东省科技计划项目(2009B010900025);;广东省粤港领域重点招标项目(2004A11004004)资助 |
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| 摘 要： | 以二氧化碳(CO2)、环氧丙烷(PO)和马来酸酐(MA)三元共聚反应合成聚甲基乙撑碳酸酯马来酸酐(PPCMA),再经交联和浸渍电解液活化,制备了性能优良的PPCMA凝胶聚合物电解质。研究发现,随着交联剂过氧化二异丙苯(DCP)的增加,交联PPCMA的玻璃化转变温度升高,热稳定性增强,PPCMA凝胶聚合物电解质的离子电导率先增加后减小,当DCP用量为1.2%、LiClO4浓度为1.1mol/dm3、LiBOB质量分数为1.3%时,PPCMA凝胶聚合物电解质的室温离子电导率达到最大值1.47×10-2S/cm。Li/PPCMAGPE/LiNi1/3Co1/3Mn1/3O2聚合物锂离子电池的首次放电容量为115.3mAh/g。
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| 关 键 词： | 凝胶聚合物电解质 锂离子电池 聚甲基乙撑碳酸酯马来酸酐 电化学性能 |
Effect of Lithium Salt on Performance of Crosslinked PPCMA Gel Polymer Electrolyte |
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| YU Xiao-yuan,,XIAO Min,WANG Shuang-jin,DONG Xian-ming,MENG Yue-zhong. Effect of Lithium Salt on Performance of Crosslinked PPCMA Gel Polymer Electrolyte[J]. Polymer Materials Science & Engineering, 2010, 0(4): 82-84,88 |
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| Authors: | YU Xiao-yuan XIAO Min WANG Shuang-jin DONG Xian-ming MENG Yue-zhong |
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| Affiliation: | 1. Institute of Biomaterial;College of Science;South China Agricultural University;Guangzhou 510642;China;2. State Key Laboratory of Optoelectronic Materials and Technologies;Institute of Optoelectronic and Functional Composite Materials;Sun Yat-Sen University;Guangzhou 510275;China |
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| Abstract: | The poly(propylene carbonate)-co-(maleic anhydride) (PPCMA) polymer matrix was synthesized by terpolymerization of carbon dioxide,propylene oxide and maleic anhydride. The PPCMA matrix was then crosslinked and actived by absorbing liquid electrolyte to prepare a new PPCMA gel polymer electrolyte. With dicumyl peroxide (DCP) amount increasing,the Tg,the thermal stability increased and the ionic conductivity of the PPCMA gel polymer electrolyte firstly increased and then decreased. The ionic conductivity of t... |
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| Keywords: | polymer electrolyte lithium-ion battery poly(propylene carbonate)-co-(maleic anhydride) electrochemical properties |
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