SiO2/polyacrylonitrile membranes via centrifugal spinning as a separator for Li-ion batteries

Meltem Yanilmaz; Yao Lu; Ying Li; Xiangwu Zhang

doi:10.1016/j.jpowsour.2014.10.015

SiO₂/polyacrylonitrile membranes via centrifugal spinning as a separator for Li-ion batteries

Meltem Yanilmaz
, Yao Lu
, Ying Li
, Xiangwu Zhang^*

^*Corresponding author for this work

North Carolina State University

Research output: Contribution to journal › Article › peer-review

97 Citations (Scopus)

Abstract

Centrifugal spinning is a fast, cost-effective and safe alternative to the electrospinning technique, which is commonly used for making fiber-based separator membranes. In this work, SiO₂/polyacrylonitrile (PAN) membranes were produced by using centrifugal spinning and they were characterized by using different electrochemical techniques for use as separators in Li-ion batteries. SiO₂/PAN membranes exhibited good wettability and high ionic conductivity due to their highly porous fibrous structure. Compared with commercial microporous polyolefin membranes, SiO₂/PAN membranes had larger liquid electrolyte uptake, higher electrochemical oxidation limit, and lower interfacial resistance with lithium. SiO₂/PAN membrane separators were assembled into lithium/lithium iron phosphate cells and these cells delivered high capacities and exhibited good cycling performance at room temperature. In addition, cells using SiO₂/PAN membranes showed superior C-rate performance compared to those using microporous PP membrane.

Original language	English
Pages (from-to)	1114-1119
Number of pages	6
Journal	Journal of Power Sources
Volume	273
DOIs	https://doi.org/10.1016/j.jpowsour.2014.10.015
Publication status	Published - 1 Jan 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.

Funding

This research was supported by National Science Foundation under Award Number CMMI-1231287 , the Advanced Transportation Energy Center and the ERC Program of the National Science Foundation under Award Number EEC-08212121 .

Funders	Funder number
Advanced Transportation Energy Center
National Science Foundation	CMMI-1231287
Engineering Research Centers	EEC-08212121

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Battery separator
Centrifugal spinning
Electrospinning
Polyacrylonitrile
Silica

Access to Document

10.1016/j.jpowsour.2014.10.015

Cite this

@article{6cfcd7815abc48b98f88a5187e8012e5,

title = "SiO2/polyacrylonitrile membranes via centrifugal spinning as a separator for Li-ion batteries",

abstract = "Centrifugal spinning is a fast, cost-effective and safe alternative to the electrospinning technique, which is commonly used for making fiber-based separator membranes. In this work, SiO2/polyacrylonitrile (PAN) membranes were produced by using centrifugal spinning and they were characterized by using different electrochemical techniques for use as separators in Li-ion batteries. SiO2/PAN membranes exhibited good wettability and high ionic conductivity due to their highly porous fibrous structure. Compared with commercial microporous polyolefin membranes, SiO2/PAN membranes had larger liquid electrolyte uptake, higher electrochemical oxidation limit, and lower interfacial resistance with lithium. SiO2/PAN membrane separators were assembled into lithium/lithium iron phosphate cells and these cells delivered high capacities and exhibited good cycling performance at room temperature. In addition, cells using SiO2/PAN membranes showed superior C-rate performance compared to those using microporous PP membrane.",

keywords = "Battery separator, Centrifugal spinning, Electrospinning, Polyacrylonitrile, Silica",

author = "Meltem Yanilmaz and Yao Lu and Ying Li and Xiangwu Zhang",

year = "2015",

month = jan,

day = "1",

doi = "10.1016/j.jpowsour.2014.10.015",

language = "English",

volume = "273",

pages = "1114--1119",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - SiO2/polyacrylonitrile membranes via centrifugal spinning as a separator for Li-ion batteries

AU - Yanilmaz, Meltem

AU - Lu, Yao

AU - Li, Ying

AU - Zhang, Xiangwu

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Centrifugal spinning is a fast, cost-effective and safe alternative to the electrospinning technique, which is commonly used for making fiber-based separator membranes. In this work, SiO2/polyacrylonitrile (PAN) membranes were produced by using centrifugal spinning and they were characterized by using different electrochemical techniques for use as separators in Li-ion batteries. SiO2/PAN membranes exhibited good wettability and high ionic conductivity due to their highly porous fibrous structure. Compared with commercial microporous polyolefin membranes, SiO2/PAN membranes had larger liquid electrolyte uptake, higher electrochemical oxidation limit, and lower interfacial resistance with lithium. SiO2/PAN membrane separators were assembled into lithium/lithium iron phosphate cells and these cells delivered high capacities and exhibited good cycling performance at room temperature. In addition, cells using SiO2/PAN membranes showed superior C-rate performance compared to those using microporous PP membrane.

AB - Centrifugal spinning is a fast, cost-effective and safe alternative to the electrospinning technique, which is commonly used for making fiber-based separator membranes. In this work, SiO2/polyacrylonitrile (PAN) membranes were produced by using centrifugal spinning and they were characterized by using different electrochemical techniques for use as separators in Li-ion batteries. SiO2/PAN membranes exhibited good wettability and high ionic conductivity due to their highly porous fibrous structure. Compared with commercial microporous polyolefin membranes, SiO2/PAN membranes had larger liquid electrolyte uptake, higher electrochemical oxidation limit, and lower interfacial resistance with lithium. SiO2/PAN membrane separators were assembled into lithium/lithium iron phosphate cells and these cells delivered high capacities and exhibited good cycling performance at room temperature. In addition, cells using SiO2/PAN membranes showed superior C-rate performance compared to those using microporous PP membrane.

KW - Battery separator

KW - Centrifugal spinning

KW - Electrospinning

KW - Polyacrylonitrile

KW - Silica

UR - https://www.scopus.com/pages/publications/84908209638

U2 - 10.1016/j.jpowsour.2014.10.015

DO - 10.1016/j.jpowsour.2014.10.015

M3 - Article

AN - SCOPUS:84908209638

SN - 0378-7753

VL - 273

SP - 1114

EP - 1119

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -