Tape casting manufacturing of thick Li4Ti5O12 ceramic electrodes with high areal capacity for lithium-ion batteries Articles uri icon

publication date

  • January 2021

start page

  • 1025

end page

  • 1032


  • 1


  • 41

International Standard Serial Number (ISSN)

  • 0955-2219

Electronic International Standard Serial Number (EISSN)

  • 1873-619X


  • In this work we report the preparation of additive-free ceramic Li4Ti5O12 (LTO) electrodes with high thickness (~250um) by the conventional tape casting method followed by binder removal and sintering. By optimizing the sintering process, high porosity (25 - 35 %), needed for a good electrolyte wetting, was achieved. In addition, the use of an Ar/H2 reducing atmosphere during the thermal treatments increases the required electronic conductivity of the sintered electrode due to the combination of a carbon coating coming from incomplete binder decomposition and the partially reduction of Ti4+. Due to the absence of binders, the final electrode has almost 100wt. % active material, leading to very high volumetric (250 mAh cm3) and areal (6-8 mA h cm-2) capacities. This process paves the way for large-scale production of thick electrodes with applications in all-solid-state batteries (ASSBs), leading to more safety lithium-ion batteries (LIBs).


  • Chemistry