Comparable investigation of tervalent and pentavalent phosphorus based flame retardants on improving the safety and capacity of lithium-ion batteries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

17 Scopus Citations
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Author(s)

  • Can Liao
  • Longxiang Liu
  • Wei Cai
  • Yao Yuan
  • Yanbei Hou
  • Wenwen Guo
  • Xia Zhou
  • Shuilai Qiu
  • Lei Song
  • Yongchun Kan
  • Yuan Hu

Detail(s)

Original languageEnglish
Pages (from-to)143-151
Journal / PublicationJournal of Power Sources
Volume420
Online published20 Mar 2019
Publication statusPublished - 30 Apr 2019
Externally publishedYes

Abstract

Lithium-ion rechargeable batteries have attracted considerable research enthusiasm and meanwhile achieved great successes in industry during the past three decades. To meet the ever-increasing demand of batteries safety especially for the application in electric vehicles and energy storage devices, phosphorus-based flame retardants as additives have been developed and investigated. Herein, trivalent and pentavalent phosphorus-based flame retardants are purposely employed to comparably investigate the influence on safety and electrochemical performance of Li-ion batteries. The results show that pentavalent phosphorus-based electrolytes possess wider electrochemical windows and can endure higher voltage compared to trivalent phosphorus-based electrolytes, revealing that pentavalent phosphorus-based flame retardants are more suitable as efficient additives for cathode materials systems. Interestingly, trivalent phosphorus flame retardants may act as solid electrolyte interphase layer formers, which can be decomposed and meanwhile promote the formation of stable solid electrolyte interphase layer on the surface of graphitic anode materials even with a low loading. Moreover, it is worth noting that both trivalent and pentavalent phosphorus flame retardants show potential for application in high rate performance. This work can provide help for scientific research or industry in the study of phosphorus-containing flame retardants for batteries.

Research Area(s)

  • Valence state, Phosphorus, lame retardant, Safety, Li-ion batteries

Citation Format(s)

Comparable investigation of tervalent and pentavalent phosphorus based flame retardants on improving the safety and capacity of lithium-ion batteries. / Wang, Wei; Liao, Can; Liu, Longxiang; Cai, Wei; Yuan, Yao; Hou, Yanbei; Guo, Wenwen; Zhou, Xia; Qiu, Shuilai; Song, Lei ; Kan, Yongchun; Hu, Yuan .

In: Journal of Power Sources, Vol. 420, 30.04.2019, p. 143-151.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review