Enhanced High-Rate Capability of Iodide-Doped Li4Ti5O12 as an Anode for Lithium-Ion Batteries

Lukman Noerochim*, Rachmad Sulaksono Prabowo, Widyastuti Widyastuti, Diah Susanti, Achmad Subhan, Nurul Hayati Idris

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Li4Ti5O12 (LTO) is an alternative anode material to substitute commercial graphite for lithium-ion batteries due to its superior long cycle life, small volume change (zero strain), good thermal stability, and relatively high power. In this work, iodide-doped LTO is prepared by solid-state reaction method via ball milling method and subsequently calcined at 750 °C for 10 h in air atmosphere. X-ray diffraction (XRD) of iodide-doped LTO reveals the spinel cubic structure without any impurities detected. The 0.2 mol lithium iodide-doped LTO shows enhanced high-rate capability with a specific discharge capacity of 123.31 mAh g−1 at 15 C. The long cyclic performance of 0.2 mol lithium iodide-doped LTO delivers a specific discharge capacity of 171.19 mAh g−1 at 1 C with a capacity retention of 99.15% after 100 cycles. It shows that the iodide-doped LTO is a promising strategy for preparing a high electrochemical performance of LTO for the anode of lithium-ion batteries.

Original languageEnglish
Article number38
JournalBatteries
Volume9
Issue number1
DOIs
Publication statusPublished - Jan 2023

Keywords

  • LiTiO
  • anode
  • doping
  • iodide
  • lithium-ion batteries

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