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高效锂离子电池的高效PVDF-HFP /胶体氧化铝复合隔膜
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2018-01-11 , DOI: 10.1002/admi.201701147
Shamshad Ali 1, 2 , Chao Tan 1 , Muhammad Waqas 1, 3 , Weiqiang Lv 1, 2 , Zhaohuan Wei 1 , Songhao Wu 1 , Bismark Boateng 1 , Jingna Liu 1 , Junaid Ahmed 3 , Jie Xiong 2 , John B. Goodenough 4 , Weidong He 1, 2, 5, 6
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2018-01-11 , DOI: 10.1002/admi.201701147
Shamshad Ali 1, 2 , Chao Tan 1 , Muhammad Waqas 1, 3 , Weiqiang Lv 1, 2 , Zhaohuan Wei 1 , Songhao Wu 1 , Bismark Boateng 1 , Jingna Liu 1 , Junaid Ahmed 3 , Jie Xiong 2 , John B. Goodenough 4 , Weidong He 1, 2, 5, 6
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对于高温锂离子电池,建议添加无机材料是一种有效的策略。然而,无机颗粒倾向于聚集在聚合物基质中,导致电池性能下降。在此,采用相逆法制备了PVDF-HFP /胶体Al 2 O 3复合隔板。良好分散在PVDF-HFP聚合物基体中的胶体Al 2 O 3颗粒大大增强了PVDF-HFP隔板的机械强度。PVDF-HFP /胶体Al 2 O 3复合隔板具有372%的高电解质吸收率,1.3×10 -3 S cm -1的高离子电导率在80°C的温度下,经过0.5 C的100次充放电循环后,仍具有95.6%的高容量保持率。此外,PVDF-HFP /胶体Al 2 O 3隔膜在150°C时仅具有4.5%的热收缩率,并具有高电化学140°C退火时的性能。
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更新日期:2018-01-11
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