Safety Performance of 5 Ah Lithium Ion Battery Cells Containing the Flame Retardant Electrolyte Additive (Phenoxy) Pentafluorocyclotriphosphazene

被引：15

作者：

Dagger, Tim ^{[1
,2
]}

Meier, Vladislav ^{[1
]}

Hildebrand, Stephan ^{[1
,2
]}

Brueggemann, Daniel ^{[1
]}

Winter, Martin ^{[1
,2
,3
]}

Schappacher, Falko M. ^{[1
]}

机构：

[1] Univ Munster, MEET Battery Res Ctr, Corrensstr 46, D-489149 Munster, Germany

[2] Univ Munster, Inst Phys Chem, Corrensstr 28-30, D-489149 Munster, Germany

[3] Forschungszentrum Julich GmbH, Helmholtz Inst Munster, IEK 12, Corrensstr 46, D-48149 Munster, Germany

来源：

ENERGY TECHNOLOGY | 2018年 / 6卷 / 10期

关键词：

Lithium ion batteries; battery safety; electrolyte additives; (phenoxy) pentafluorocyclotriphosphazene (FPPN); adiabatic reaction calorimetry (ARC); ACCELERATING RATE CALORIMETRY; VINYL ETHYLENE CARBONATE; RATE CYCLING STABILITY; THERMAL-STABILITY; FLUOROETHYLENE CARBONATE; INTERNAL SHORT; SHORT-CIRCUIT; ELECTROCHEMICAL PERFORMANCE; OVERCHARGE REACTION; SOLID-ELECTROLYTE;

D O I：

10.1002/ente.201800131

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Investigations on the effect of flame retardant additives (FRs) on the abuse tolerance of large scale lithium ion battery (LIB) cells (5 Ah) are of high relevance in battery science and industry but rarely performed as they are cost and time consuming. In addition, even though FRs are frequently investigated, their positive effect on the safety properties of larger full LIB cells under abusive condition has not been proven yet. The promising FR (phenoxy) pentafluorocyclotriphosphazene (FPPN) is known to exhibit excellent flame retardant- and electrochemical properties at the same time. Therefore, FPPN is investigated towards abuse tolerance in 5 Ah LIB cells in this study. Calorimetric investigations show that a mass percentage of 5 wt % FPPN mixed to a standard electrolyte, significantly reduces the self-heating rate of 5 Ah cells in the temperature range from 80 degrees C to 110 degrees C. While nail penetration and external short circuit experiments provide no significant difference between standard and FPPN-containing cells, an increased overcharge tolerance and a favorable thermal stability at approximate to 120 degrees C in overcharge and oven experiments could be shown.

引用

页码：2001 / 2010

页数：10