Fabrication and Performance of All-Solid-State Li鈥揂ir Battery with SWCNTs/LAGP Cathode

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• 作者：Yijie Liu ; Bojie Li ; Hirokazu Kitaura ; Xueping Zhang ; Min Han ; Ping He ; Haoshen Zhou
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2015
• 出版时间：August 12, 2015
• 年：2015
• 卷：7
• 期：31
• 页码：17307-17310
• 全文大小：301K
• ISSN：1944-8252

文摘

The all-solid-state Li鈥揳ir battery has been fabricated, which is constructed by a lithium foil anode, a NASICON-type solid state electrolyte Li_1+xAl_yGe_2鈥?i>y(PO₄)₃ (LAGP) and single-walled carbon nanotubes (SWCNTs)/LAGP nanoparticles composite as air electrode. Its electrochemical performance was investigated in air atmosphere. Particularly, this battery exhibited a larger capacity about 2800 mAh g^鈥? for the first cycle, while comparatively the battery with multiwalled carbon nanotubes (MWCNTs)/LAGP as cathode had a capacity of only about 1700 mAh g^鈥?. Also, the battery with SWCNTs/LAGP showed improved cycling performance with a reversible capacity of 1000 mAh g^鈥? at a current density of 200 mA g^鈥?. Our result demonstrated that the all-solid-state Li鈥揳ir battery with SWCNTs/LAGP as cathode catalyst has a considerable potential for practical application.