4-bromobenzyl isocyanate versus benzyl isocyanate -: New film-forming electrolyte additives and overcharge protection additives for lithium ion batteries

被引：65

作者：

Korepp, C. ^{[2
]}

Kern, W. ^{[3
]}

Lanzer, E. A. ^{[2
]}

Raimann, P. R. ^{[2
]}

Besenhard, J. O. ^{[2
]}

Yang, M. ^{[1
]}

Moeller, K.-C. ^{[2
]}

Shieh, D. -T. ^{[1
]}

Winter, M. ^{[2
]}

机构：

[1] Ind Technol Res Inst, Mat Res Labs, Hsinchu 310, Taiwan

[2] Graz Univ Technol, Inst Chem & Technol Inorgan Mat, A-8010 Graz, Austria

[3] Graz Univ Technol, Inst Chem & Technol Organ Mat, A-8010 Graz, Austria

来源：

JOURNAL OF POWER SOURCES | 2007年 / 174卷 / 02期

关键词：

lithium ion batteries; electrolyte additives; solid electrolyte interphase (SEI); in situ FTIR; overcharge; isocyanates;

D O I：

10.1016/j.jpowsour.2007.06.142

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electrochemical properties and working mechanisms of benzyl isocyanate compounds as polymerizable electrolyte additives for overcharge protection of lithium ion batteries have been studied by cyclic voltammetry, charge-discharge cycling, overcharge tests, accelerating rate calorimetry (ARC) and in situ Fourier transform infrared spectroscopy (FTIRS). The overcharge and FTIRS data clearly reveal that 4-bromobenzyl isocyanate (Br-BIC) can electrochemically polymerize at 5.5 V (versus Li/Li+) to form an overcharge-inhibiting (probably insulating) film on the cathode surface. In addition, is found the Br-BIC does slightly improve the charge/discharge performance of a lithium ion battery. Furthermore, Br-BIC and benzyl isocyanate show beneficial solid electrolyte interphase (SEI) formation behaviour on graphite in propylene carbonate based electrolyte solutions. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：637 / 642

页数：6

共 24 条

[1] NORMAL-BUTYLFERROCENE FOR OVERCHARGE PROTECTION OF SECONDARY LITHIUM BATTERIES [J].

ABRAHAM, KM ;

PASQUARIELLO, DM ;

WILLSTAEDT, EB .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1990, 137 (06) :1856-1857

[2] On safety of lithium-ion cells [J].

Biensan, P ;

Simon, B ;

Pérès, JP ;

de Guibert, A ;

Broussely, M ;

Bodet, JM ;

Perton, F .

JOURNAL OF POWER SOURCES, 1999, 81 :906-912

[3] Liquid electrolytes for lithium and lithium-ion batteries [J].

Blomgren, GE .

JOURNAL OF POWER SOURCES, 2003, 119 :326-329

[4]

CASTEEL W, 2005, P 1 INT S LARG LITH

[5]

FOUCHARD D, 1994, P S RECH LITH LITH I, P348

[6] THERMAL-STABILITY STUDY OF LIASF6 ELECTROLYTES USING ACCELERATING RATE CALORIMETRY [J].

GEE, MA ;

LAMAN, FC .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1993, 140 (04) :L53-L55

[7] SNIFTIRS investigation of the oxidative decomposition of organic-carbonate-based electrolytes for lithium-ion cells [J].

Joho, F ;

Novák, P .

ELECTROCHIMICA ACTA, 2000, 45 (21) :3589-3599

[8] 100 Wh Large size Li-ion batteries and safety tests [J].

Kitoh, K ;

Nemoto, H .

JOURNAL OF POWER SOURCES, 1999, 81 :887-890

[9]

Laman F. C., 1992, 6 INT M LITH BATT MU, P298

[10]

Mao H., 1998, U. S. Pat, Patent No. 5776627

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