Solid polymer composite electrolytes possess the benefits of superior compatibility with electrodes and good thermal characteristics for more secure energy storage equipment.Herein,a new gel polymer electrolyte(GPE)co...Solid polymer composite electrolytes possess the benefits of superior compatibility with electrodes and good thermal characteristics for more secure energy storage equipment.Herein,a new gel polymer electrolyte(GPE)containing NH_(2)-MIL-53(Al),[PP_(13)][TFSI],LiTFSI,and PVDF-HFP was prepared using a simple method of solution casting.The effects of encapsulating different ratios of ionic liquid([PP_(13)][TFSI])into the micropores of functionalized metal-organic frameworks(NH_(2)-MIL-53(Al))on the electrochemical properties were compared.XRD,SEM,nitrogen adsorption-desorption isotherms,and electrochemical measurements were conducted.This GPE demonstrates a superior ionic conductivity of 8.08×10^(-4)S·cm^(-1)at 60℃and can sustain a discharge specific capacity of 156.6 mA·h·g^(-1)at 0.2 C for over 100 cycles.This work might offer a potential approach to alleviate the solid-solid contact with the solid-state electrolyte and electrodes and broaden a new window for the creation of all-solid-state batteries.展开更多
本文研究了 SiCw/Al 金属基复合材料的界面问题。用俄歇电子谱仪(AES)对断口表面和对它进行溅射剥层后分析的结果表明 SiC 晶须与基体 Al 结合良好。通过透射电镜和 X 射线能谱观测,没有发现界面反应层存在的迹象。分析表明既没有C、Si...本文研究了 SiCw/Al 金属基复合材料的界面问题。用俄歇电子谱仪(AES)对断口表面和对它进行溅射剥层后分析的结果表明 SiC 晶须与基体 Al 结合良好。通过透射电镜和 X 射线能谱观测,没有发现界面反应层存在的迹象。分析表明既没有C、Si 元素通过界面向基体中的扩散,也没有 Al 通过界面向晶须中的扩散。X 射线衍射试验结果进一步证实了这一点。研究还表明 SiC 晶须与其周围的 Al 基体可能存在某种位向关系。展开更多
基金financially supported by National Natural Science Foundation of China(21701083)Postgraduate Research&Practice Innovation Program of Jiangsu Province(KYCX20_3137)。
文摘Solid polymer composite electrolytes possess the benefits of superior compatibility with electrodes and good thermal characteristics for more secure energy storage equipment.Herein,a new gel polymer electrolyte(GPE)containing NH_(2)-MIL-53(Al),[PP_(13)][TFSI],LiTFSI,and PVDF-HFP was prepared using a simple method of solution casting.The effects of encapsulating different ratios of ionic liquid([PP_(13)][TFSI])into the micropores of functionalized metal-organic frameworks(NH_(2)-MIL-53(Al))on the electrochemical properties were compared.XRD,SEM,nitrogen adsorption-desorption isotherms,and electrochemical measurements were conducted.This GPE demonstrates a superior ionic conductivity of 8.08×10^(-4)S·cm^(-1)at 60℃and can sustain a discharge specific capacity of 156.6 mA·h·g^(-1)at 0.2 C for over 100 cycles.This work might offer a potential approach to alleviate the solid-solid contact with the solid-state electrolyte and electrodes and broaden a new window for the creation of all-solid-state batteries.
文摘本文研究了 SiCw/Al 金属基复合材料的界面问题。用俄歇电子谱仪(AES)对断口表面和对它进行溅射剥层后分析的结果表明 SiC 晶须与基体 Al 结合良好。通过透射电镜和 X 射线能谱观测,没有发现界面反应层存在的迹象。分析表明既没有C、Si 元素通过界面向基体中的扩散,也没有 Al 通过界面向晶须中的扩散。X 射线衍射试验结果进一步证实了这一点。研究还表明 SiC 晶须与其周围的 Al 基体可能存在某种位向关系。
