A semi-quantitative deformation model for pore formation in isotactic polypropylene microporous membrane

A semi-quantitative deformation model for pore formation in isotactic polypropylene microporous... 1 Introduction</h5> Lithium-ion battery separator, placed between anode and cathode of lithium battery and serving as the electrolyte reservoir to enable ionic transportation, is a high value-added material with the highest technical barrier among lithium-ion battery materials [1,2] . The battery separator is expected to be thin and highly porous but with enough physical strength to balance the mechanical and electrical separation between electrodes [3] . In recent years, intensive requirements of rechargeable lithium batteries with high energy and power density in high-powered electric vehicles and energy storage devices, prompt urgent scientific and technical issues to produce high-performance separators with high porosity (around 50–70%), strong mechanical properties (puncture strength of about 5 N) and reliable safety. Specifically in case of overheating, the separator should have the inherent ability to shut down the circuit while its mechanics is still remained. However, most microporous membranes available in the market can gain only around 40% porosity and have relatively poor mechanical strength and a melt temperature lower than 150 °C. For electric vehicles and other high working load applications, the current battery separators are still deficient in comprehensive characters of high porosity (correspondingly ionic current), strong mechanical strength and reliable safety. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polymer Elsevier

A semi-quantitative deformation model for pore formation in isotactic polypropylene microporous membrane

Loading next page...
 
/lp/elsevier/a-semi-quantitative-deformation-model-for-pore-formation-in-isotactic-VF0CK4slS0
Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier Ltd
ISSN
0032-3861
D.O.I.
10.1016/j.polymer.2015.10.067
Publisher site
See Article on Publisher Site

Abstract

1 Introduction</h5> Lithium-ion battery separator, placed between anode and cathode of lithium battery and serving as the electrolyte reservoir to enable ionic transportation, is a high value-added material with the highest technical barrier among lithium-ion battery materials [1,2] . The battery separator is expected to be thin and highly porous but with enough physical strength to balance the mechanical and electrical separation between electrodes [3] . In recent years, intensive requirements of rechargeable lithium batteries with high energy and power density in high-powered electric vehicles and energy storage devices, prompt urgent scientific and technical issues to produce high-performance separators with high porosity (around 50–70%), strong mechanical properties (puncture strength of about 5 N) and reliable safety. Specifically in case of overheating, the separator should have the inherent ability to shut down the circuit while its mechanics is still remained. However, most microporous membranes available in the market can gain only around 40% porosity and have relatively poor mechanical strength and a melt temperature lower than 150 °C. For electric vehicles and other high working load applications, the current battery separators are still deficient in comprehensive characters of high porosity (correspondingly ionic current), strong mechanical strength and reliable safety.

Journal

PolymerElsevier

Published: Dec 2, 2015

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off