Micro-scale Li2S-C composite preparation from Li2SO4 for cathode of lithium ion battery

Jun Liu, Hiroki Nara, Tokihiko Yokoshima, Toshiyuki Momma, Tetsuya Osaka*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


A facile and scalable method is proposed to prepare microscale Li2S-C composite from Li2SO4 through carbon-thermal reduction, followed by a carbon coating process. Multi-solvent recrystallization was utilized to reduce the particle size of Li2SO4 to 2 μm. This fine-grain Li2SO4 helps to shorten the particle size of reduction product from 10 μm to 3 μm. Using fine Li2SO4 also brings the benefit of greatly reducing the over potential during the initial charge process and increasing the kinetics for Li2S materials. Finally, the microscale Li2S-C composite prepared from fine Li2SO4 enables a stable capacity of 350 mAh g-1 at 0.2 C, higher than that obtained using a cathode prepared from commercial Li2SO4.

Original languageEnglish
Pages (from-to)70-77
Number of pages8
JournalElectrochimica Acta
Publication statusPublished - 2015 Nov 20


  • LiS-C
  • LiSO
  • carbon-thermal reduction
  • lithium sulfide

ASJC Scopus subject areas

  • General Chemical Engineering
  • Electrochemistry


Dive into the research topics of 'Micro-scale Li2S-C composite preparation from Li2SO4 for cathode of lithium ion battery'. Together they form a unique fingerprint.

Cite this