Improved ionic conductivity of porous Li 4 Ti 5 O 12 synthesized by sol-gel method using eggshell membrane as soft template

Angga Hermawan, Arie Wibowo, Lia A.T.W. Asri, Shu Yin, Bambang Sunendar Purwasasmita

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Porous Lithium Titanate (Li 4 Ti 5 O 12 ) is one of attractive materials for safer and more stable anode of lithium-ion batteries with improved ionic conductivity. In this study, porous Li 4 Ti 5 O 12 were synthesized by sol-gel method using eggshell membrane as soft template. X-Ray Diffraction (XRD) and Energy Dispersive Spectroscopy (EDS) results indicated that Li 4 Ti 5 O 12 were successfully formed. Scanning Electron Microscope (SEM), Brunauer-Emmett-Teller (BET) and Electrochemical Impedance Spectroscopy (EIS) results showed that porous Li 4 Ti 5 O 12 with highest surface area (23.1 ±0.4 m 2 g -1 ) and highest ionic conductivity (7.2 ±0.3 ×10 -10 S cm -1 ) could be obtained by preparing sample in the presence of eggshell membrane, using lower precursor concentration (0.025 M) and calcination temperature at 850 °C.

Original languageEnglish
Article number075030
JournalMaterials Research Express
Volume6
Issue number7
DOIs
Publication statusPublished - 2019 Apr 10

Keywords

  • egg shell membrane
  • ionic conductivity
  • lithium-ion batteries
  • porous Li Ti O
  • soft template

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Metals and Alloys

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