Zeolite coated polypropylene separators with tunable surface properties for lithium-ion batteries

Xueliang Dong, Wanliang Mi, Linghui Yu, Yi Jin, Jerry Lin

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The separator is a critical component in liquid electrolyte batteries, and closely related to the battery performance such as cycle number and safety. In this work, thin (∼2 μm) films of MFI zeolite with different Si/Al ratios are coated on both sides of the commercial polypropylene separator for lithium ion batteries. The electrolyte solvent wettability of the MFI zeolite coated separators decreases with increasing Si/Al ratio of the zeolite films. Polypropylene separator coated with MFI zeolite (Si/Al = 25) film (ZCPP25) shows very high wettability for electrolyte. The Li4Ti5O12/Li cell with ZCPP25 separator exhibits best charge and discharge performance among the cells with pure or coated polypropylene separators. Under relatively high current rate, the cell with MFI zeolite coated separator shows better charge and discharge capacities and cycling stability than that of uncoated polypropylene separator. The cell with MFI zeolite coated separator also performs better than the cell with uncoated polypropylene separator in a wider temperature range. The enhanced performance for cells with MFI zeolite coated separator is caused by the better filling of the electrolyte at the separator/electrode interface due to the improved electrolyte solvent wettability.

Original languageEnglish (US)
Pages (from-to)406-414
Number of pages9
JournalMicroporous and Mesoporous Materials
Volume226
DOIs
StatePublished - May 15 2016

Fingerprint

Zeolites
Polypropylenes
separators
Separators
polypropylene
surface properties
Surface properties
electric batteries
lithium
ions
Electrolytes
electrolytes
wettability
cells
Wetting
Lithium-ion batteries
cycles
high current
safety

Keywords

  • Dip-coating
  • Lithium ion battery
  • MFI zeolite
  • Separator
  • Wettability

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Zeolite coated polypropylene separators with tunable surface properties for lithium-ion batteries. / Dong, Xueliang; Mi, Wanliang; Yu, Linghui; Jin, Yi; Lin, Jerry.

In: Microporous and Mesoporous Materials, Vol. 226, 15.05.2016, p. 406-414.

Research output: Contribution to journalArticle

@article{48498d125c59406fa0b758a964e90f4e,
title = "Zeolite coated polypropylene separators with tunable surface properties for lithium-ion batteries",
abstract = "The separator is a critical component in liquid electrolyte batteries, and closely related to the battery performance such as cycle number and safety. In this work, thin (∼2 μm) films of MFI zeolite with different Si/Al ratios are coated on both sides of the commercial polypropylene separator for lithium ion batteries. The electrolyte solvent wettability of the MFI zeolite coated separators decreases with increasing Si/Al ratio of the zeolite films. Polypropylene separator coated with MFI zeolite (Si/Al = 25) film (ZCPP25) shows very high wettability for electrolyte. The Li4Ti5O12/Li cell with ZCPP25 separator exhibits best charge and discharge performance among the cells with pure or coated polypropylene separators. Under relatively high current rate, the cell with MFI zeolite coated separator shows better charge and discharge capacities and cycling stability than that of uncoated polypropylene separator. The cell with MFI zeolite coated separator also performs better than the cell with uncoated polypropylene separator in a wider temperature range. The enhanced performance for cells with MFI zeolite coated separator is caused by the better filling of the electrolyte at the separator/electrode interface due to the improved electrolyte solvent wettability.",
keywords = "Dip-coating, Lithium ion battery, MFI zeolite, Separator, Wettability",
author = "Xueliang Dong and Wanliang Mi and Linghui Yu and Yi Jin and Jerry Lin",
year = "2016",
month = "5",
day = "15",
doi = "10.1016/j.micromeso.2016.02.006",
language = "English (US)",
volume = "226",
pages = "406--414",
journal = "Microporous and Mesoporous Materials",
issn = "1387-1811",
publisher = "Elsevier",

}

TY - JOUR

T1 - Zeolite coated polypropylene separators with tunable surface properties for lithium-ion batteries

AU - Dong, Xueliang

AU - Mi, Wanliang

AU - Yu, Linghui

AU - Jin, Yi

AU - Lin, Jerry

PY - 2016/5/15

Y1 - 2016/5/15

N2 - The separator is a critical component in liquid electrolyte batteries, and closely related to the battery performance such as cycle number and safety. In this work, thin (∼2 μm) films of MFI zeolite with different Si/Al ratios are coated on both sides of the commercial polypropylene separator for lithium ion batteries. The electrolyte solvent wettability of the MFI zeolite coated separators decreases with increasing Si/Al ratio of the zeolite films. Polypropylene separator coated with MFI zeolite (Si/Al = 25) film (ZCPP25) shows very high wettability for electrolyte. The Li4Ti5O12/Li cell with ZCPP25 separator exhibits best charge and discharge performance among the cells with pure or coated polypropylene separators. Under relatively high current rate, the cell with MFI zeolite coated separator shows better charge and discharge capacities and cycling stability than that of uncoated polypropylene separator. The cell with MFI zeolite coated separator also performs better than the cell with uncoated polypropylene separator in a wider temperature range. The enhanced performance for cells with MFI zeolite coated separator is caused by the better filling of the electrolyte at the separator/electrode interface due to the improved electrolyte solvent wettability.

AB - The separator is a critical component in liquid electrolyte batteries, and closely related to the battery performance such as cycle number and safety. In this work, thin (∼2 μm) films of MFI zeolite with different Si/Al ratios are coated on both sides of the commercial polypropylene separator for lithium ion batteries. The electrolyte solvent wettability of the MFI zeolite coated separators decreases with increasing Si/Al ratio of the zeolite films. Polypropylene separator coated with MFI zeolite (Si/Al = 25) film (ZCPP25) shows very high wettability for electrolyte. The Li4Ti5O12/Li cell with ZCPP25 separator exhibits best charge and discharge performance among the cells with pure or coated polypropylene separators. Under relatively high current rate, the cell with MFI zeolite coated separator shows better charge and discharge capacities and cycling stability than that of uncoated polypropylene separator. The cell with MFI zeolite coated separator also performs better than the cell with uncoated polypropylene separator in a wider temperature range. The enhanced performance for cells with MFI zeolite coated separator is caused by the better filling of the electrolyte at the separator/electrode interface due to the improved electrolyte solvent wettability.

KW - Dip-coating

KW - Lithium ion battery

KW - MFI zeolite

KW - Separator

KW - Wettability

UR - http://www.scopus.com/inward/record.url?scp=84959449765&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84959449765&partnerID=8YFLogxK

U2 - 10.1016/j.micromeso.2016.02.006

DO - 10.1016/j.micromeso.2016.02.006

M3 - Article

AN - SCOPUS:84959449765

VL - 226

SP - 406

EP - 414

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

SN - 1387-1811

ER -