多壁纳米碳管对磷酸铁锂正极材料热稳定性及表面形貌的影响(英文)
来源期刊：新型炭材料2013年第1期
论文作者：Mária Filkusová Andrea Fedorková Renáta Oriňáková Andrej Oriňák Zuzana Nováková Lenka kantárová
文章页码：1 - 7
关键词：多壁纳米碳管;多吡咯;磷酸铁锂;锂离子电池;
摘 要：合成了一种新型的LiFePO4/多壁纳米碳管（MWCNTs）复合正极材料。通过MWCNTs和PPy-PEG粘结剂有机地在LiFePO4颗粒间构成三维网络导电结构,并借助SEM、TGA和高分辨裂解气相色谱,研究了LiFePO4-MWCNT正极材料的表面形貌和热稳定性。结果表明,500℃下该材料的热分解程度非常小,说明MWCNTs和PPy-PEG的复合是提高LiFePO4正极材料的热稳定性和改善表面形貌的有效途径。
Mária Filkusová1，Andrea Fedorková2,3，Renáta Oriňáková2，Andrej Oriňák2，Zuzana Nováková1，Lenka kantárová4
1. Department of Physical and Theoretical Chemistry,Faculty of Science,Comenius University,Mlynská Dolina,SK-842 15 Bratislava 4,Slovak Republic2. Department of Physical Chemistry,Faculty of Science,P. J.afárik University,Moyzesova 11,SK-04154 Koice,Slovak Republic3. Department of Electrical and Electronic Technology,Faculty of Electrical Engineering and Communication,Brno University of Technology,Czech Republic4. Department of Analytical Chemistry,Faculty of Science,Comenius University,Mlynská Dolina,SK-842 15 Bratislava 4,Slovak Republic
摘 要：合成了一种新型的LiFePO4/多壁纳米碳管（MWCNTs）复合正极材料。通过MWCNTs和PPy-PEG粘结剂有机地在LiFePO4颗粒间构成三维网络导电结构,并借助SEM、TGA和高分辨裂解气相色谱,研究了LiFePO4-MWCNT正极材料的表面形貌和热稳定性。结果表明,500℃下该材料的热分解程度非常小,说明MWCNTs和PPy-PEG的复合是提高LiFePO4正极材料的热稳定性和改善表面形貌的有效途径。
关键词：多壁纳米碳管;多吡咯;磷酸铁锂;锂离子电池;
