Cold sintering approach to fabrication of high rate performance binderless LiFePO4 cathode with high volumetric capacity

Joo Hwan Seo, Kris Verlinde, Jing Guo, Damoon Sohrabi Baba Heidary, Ramakrishnan Rajagopalan, Thomas E. Mallouk, Clive A. Randall

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

The cold sintering process (CSP) is an attractive method for densifying ceramic-based materials by using a transient aqueous solution at low temperature under high pressure. CSP was applied to increase the volumetric capacity density of lithium iron phosphate (LiFePO4, LFP) based cathodes by densifying the cathode structure directly formed on a current collector. The binderless LFP cathode had a density of ~ 2.42 g/cm3 and was capable of being cycled even at the high current rate of 10C. The gravimetric and volumetric capacity of the cold sintered LFP at 10C were ~ 102 mAh/g and 247 mAh/cm3, respectively.

Original languageEnglish (US)
Pages (from-to)267-271
Number of pages5
JournalScripta Materialia
Volume146
DOIs
StatePublished - Mar 15 2018

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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