Templated spinel Li4Ti5O12 Li-ion battery electrodes combining high rates with high energy density

Deepak P. Singh, Fokko M. Mulder, Marnix Wagemaker*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

20 Citations (Scopus)

Abstract

High power and high energy density electrodes for rechargeable lithium-ion batteries are required for electrical mobility applications. Though nano-structuring of electrode materials generally improves the kinetics of the charge transport, thereby increasing the power density, the drawback is the low density of these electrodes compromising the energy density. Combining high power density with high energy density requires dense electrodes with optimal ionic and electronic wiring throughout the electrode microstructure. Here we present a facile and low cost templating method using carbonate salts creating 3D interconnected ionic pathways that improve the ionic charge transport without compromising the electrode density significantly. The method was demonstrated for C/Li4Ti5O12 electrode material resulting in excellent capacity retention reaching ~ 90% at 5 C and ~ 50% at 200 C rate combined with high active material electrode densities around 1.45 gm/cm3.
Original languageEnglish
Pages (from-to)124-127
JournalElectrochemistry communications
Volume35
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Li-ion batteries
  • Li4Ti5O12 spinel
  • Templating
  • Microstructure
  • High charge rates

Fingerprint Dive into the research topics of 'Templated spinel Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> Li-ion battery electrodes combining high rates with high energy density'. Together they form a unique fingerprint.

Cite this