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A layer-built rechargeable lithium ribbon-type battery for high energy density textile battery applications

Jae-Kwang Kim (Institutionen för teknisk fysik, Kondenserade materiens fysik) ; Johan Scheers (Institutionen för teknisk fysik, Kondenserade materiens fysik) ; H. S. Ryu ; J. H. Ahn ; T. H. Nam ; K. W. Kim ; H. J. Ahn ; G. B. Cho ; Per Jacobsson (Institutionen för teknisk fysik, Kondenserade materiens fysik)
Journal of Materials Chemistry A (2050-7488). Vol. 2 (2014), 6, p. 1774-1780.
[Artikel, refereegranskad vetenskaplig]

We designed a novel layer-built rechargeable lithium ribbon-type battery intended for textile or cloth based applications. The ribbon-type battery, 2.4 mm (or 1 mm) wide and 10 cm long, is composed of a double layer LiFePO4 cathode and an amorphous silicon nanofilm. The double layer LiFePO4 and amorphous silicon electrodes were prepared using the doctor blade method and a vertical deposition technique, respectively. The structure and morphology of the LiFePO4 and the silicon thin film were characterized by Rietveld refinement, SEM and TEM. At room temperature the ribbon-type battery exhibited an initial discharge capacity of 166.4 and 132.7 mA h g (1) at 0.5 and 1 C-rate, respectively. A reasonably good cycling performance and high coulombic efficiency under the high current density of 1 C-rate could be obtained with the Si/LiFePO4 ribbon-type battery. Also, a high volumetric capacity of 336 mA h cm (3) at 0.5 C-rate was achieved, which makes the ribbon-type battery suitable for practical use.

Nyckelord: LI-ION BATTERIES, LIFEPO4 CATHODE MATERIAL, ORGANIC RADICAL BATTERY, ELECTROCHEMICAL PERFORMANCE, STORAGE MATERIALS, IRON PHOSPHATE, POLYMER, ELECTRODE, COMPOSITES, ANODES



Denna post skapades 2014-02-27. Senast ändrad 2016-09-14.
CPL Pubid: 194214

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Kondenserade materiens fysik (1900-2015)

Ämnesområden

Fysik

Chalmers infrastruktur