Li(Ni1/3Co1/3Mn1/3)O2 as a suitable cathode for high power applications

I. Belharouak, Y. K. Sun, J. Liu, K. Amine

Research output: Contribution to journalArticle

272 Citations (Scopus)

Abstract

The electrochemical performance of the layered Li(Ni1/3Co1/3Mn1/3)O2 material have been investigated as a promising cathode for a hybrid electric vehicle (HEV) application. A C/Li(Ni1/3Co1/3Mn1/3)O2 cell, cycled between 2.9 and 4.1V at 1.5C rate, does not show any sign of capacity fade up to 100 cycles, whereas at the 5C rate, a loss of only 18% of capacity is observed after 200 cycles. The Li(Ni1/3Co1/3Mn1/3)O2 host cathode converts from the hexagonal to a monoclinic symmetry at a high state of charge. The cell pulse power capability on charge and discharge were found to exceed the requirement for powering a hybrid HEV. The accelerated calendar life tests performed on C/Li(Ni1/3Co1/3Mn1/3)O2 cells charged at 4.1V and stored at 50°C have shown a limited area specific impedance (ASI) increase unlike C/Li(Ni0.8Co0.2)O2 based-cells. A differential scanning calorimetry (DSC) comparative study clearly showed that the thermal stability of Li(Ni1/3Co1/3Mn1/3)O2 is much better than that of Li(Ni0.8Co0.2)O2 and Li(Ni0.8Co0.15Al0.05)O2 cathodes. Also, DSC data of Li(Ni1/3Co1/3Mn1/3)O2 cathode charged at 4.1, 4.3, and 4.6V are presented and their corresponding exothermic heat flow peaks are discussed.

Original languageEnglish
Pages (from-to)247-252
Number of pages6
JournalJournal of Power Sources
Volume123
Issue number2
DOIs
Publication statusPublished - 20 Sep 2003
Externally publishedYes

Fingerprint

Cathodes
cathodes
electric hybrid vehicles
Hybrid vehicles
cells
Differential scanning calorimetry
heat measurement
calendars
cycles
scanning
heat transmission
Thermodynamic stability
thermal stability
impedance
Heat transfer
requirements
symmetry
pulses

Keywords

  • Cathode material
  • High power
  • Hybrid electric vehicle
  • Layered structure
  • Li-ion batteries

ASJC Scopus subject areas

  • Electrochemistry
  • Fuel Technology
  • Materials Chemistry
  • Energy (miscellaneous)

Cite this

Li(Ni1/3Co1/3Mn1/3)O2 as a suitable cathode for high power applications. / Belharouak, I.; Sun, Y. K.; Liu, J.; Amine, K.

In: Journal of Power Sources, Vol. 123, No. 2, 20.09.2003, p. 247-252.

Research output: Contribution to journalArticle

Belharouak, I. ; Sun, Y. K. ; Liu, J. ; Amine, K. / Li(Ni1/3Co1/3Mn1/3)O2 as a suitable cathode for high power applications. In: Journal of Power Sources. 2003 ; Vol. 123, No. 2. pp. 247-252.
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