LiBH4 as solid electrolyte for Li-ion batteries with Bi2Te3 nanostructured anode. (22nd November 2018)

• Record Type: Journal Article
• Authors: Singh, Rini; Kumari, Pooja; Rathore, Rajan K.; Shinzato, Keita; Ichikawa, Takayuki; Verma, Ajay S.; Saraswat, Vibhav K.; Awasthi, Kamlendra; Jain, Ankur; Kumar, Manoj
• Is Part Of: International journal of hydrogen energy. Volume 43:Number 47(2018)
• Page Start: 21709
• Page End: 21714
• Publication Date: 2018-11-22
• Subjects: Lithium borohydride -- Bismuth telluride -- Nanostructures -- Anode materials -- Energy storage -- All solid-state lithium ion batteries; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2018.03.068
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: The present study highlights the first-ever application of fastest lithium ( Li ) ion conducting complex hydride containing cluster anions, namely lithium borohydride (LiBH4 ) into an all-solid-state Li -ion battery having Bi2 Te3 as anode material. Bi2 Te3 nanostructures were prepared by the simple wet chemical method and characterized by their crystal structure, morphology and electronic structure using X-ray diffraction (XRD), scanning electron microscopy (SEM), Transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). SEM and TEM experiments revealed the dimensions as 20–60 nm for nanoparticles and 30–90 nm for nanosheets. The formation of Bi2 Te3 nanostructures along with Bi2 O3 as the residual phase is confirmed by XRD analysis. The crystallite size of nanoparticles and nanosheets are calculated as 19 nm and 39 nm respectively from XRD profile. The XPS study also confirms the formation of nanostructured Bi2 Te3 along with Bi2 O3 . Finally, the electrochemical performance of these nanostructures is observed using the galvanostatic charge-discharge curve at 0.1C and 0.5C. Highlights: Bi2 Te3 nanoparticles and nanosheets are prepared using wet chemical method. LiBH4 as solid electrolyte is used for all solid-state Li-ion battery having Bi2 Te3 as anode. A reversible capacity of >450 mAhg −1 has been achieved using above combination.