Chemical Stability Investigations of Polyisobutylene as New Binder for Application in Lithium Air-Batteries

被引：17
作者：
Heine, Jennifer [1 ]
Rodehorst, Uta [1 ]
Badillo, Juan Pablo [1 ]
Winter, Martin [1 ,2 ]
Bieker, Peter [1 ,2 ]
机构：
[1] MEET, Battery Res Ctr, D-48149 Munster, Germany
[2] Univ Munster, Inst Phys Chem, D-48149 Munster, Germany
来源：
ELECTROCHIMICA ACTA | 2015年 / 155卷
关键词：
Lithium-Air Batteries; Binder; Chemical Stability; PIB; PVdF; SI NEGATIVE ELECTRODES; LI-ION BATTERIES; LI-O-2; BATTERIES; ELECTROLYTES; ELECTROCHEMISTRY; CHEMISTRY; CELLULOSE; LIQUID; RUBBER; ANODE;
D O I：
10.1016/j.electacta.2015.01.001
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The side reactions of LiO2, Li2O2 and Li2O, formed during the discharge process at the cathode/ electrolyte interphase, are still a main challenge of lithium-air batteries. During these reactions, polyvinylidene difluoride (PVdF), as the commonly used cathode binder material, is decomposing, leading to a shorter lifetime of the battery. In this paper, we introduced and investigated polyisobutylene (PIB), a chemically and electrochemically inert polymeric material, to substitute PVdF as binder for lithium-air batteries. Results obtained by X-ray diffraction and spectroscopic methods showed, that PIB is far more stable in the presence of O-2, O-2(2)-as well as O-2-species compared to PVdF. This distinct inertness makes PIB a promising binder for lithium-air batteries. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：110 / 115
页数：6
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