N-Phenylmaleimide as a new polymerizable additive for overcharge protection of lithium-ion batteries

B. Wang, Q. Xia, P. Zhang, G. C. Li, Y. P. Wu, H. J. Luo, S. Y. Zhao, T. van Ree

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Electrochemical properties and overcharge behavior of N-phenylmaleimide (NPM) as a new polymerizable electrolyte additive for overcharge protection of lithium-ion batteries are studied by cyclic voltammetry, charge-discharge performance, electrochemical impedance spectroscopy and scanning electron microscopy (SEM). The results show that NPM can electrochemically polymerize at the overcharge potential of 3.8-4.2 V (vs. Li/Li+) and form a thin polymer film on the surface of the cathode, thus preventing voltage runaway. On the other hand, the use of NPM as an overcharge protection electrolyte additive does not influence the normal performance of lithium-ion batteries.

Original languageEnglish
Pages (from-to)727-730
Number of pages4
JournalElectrochemistry Communications
Volume10
Issue number5
DOIs
StatePublished - May 2008
Externally publishedYes

Keywords

  • Additive
  • Electropolymerization
  • Lithium-ion battery
  • N-Phenylmaleimide
  • Overcharge protection

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