Recent developments in natural mineral-based separators for lithium-ion batteries

Lithium-ion batteries (LIBs) are currently the most widely used portable energy storage devices due to their high energy density and long lifespan. The separator plays a key role in the battery, and its function is to prevent the two electrodes of the battery from contacting, causing the internal sh...

Full description

Saved in:
Bibliographic Details
Published in:RSC advances 2021-05, Vol.11 (27), p.16633-16644
Main Authors: Liu, Fangfang, Chuan, Xiuyun
Format: Article
Language:English
Subjects:
Chemistry
Circuits
Computer storage devices
Diatomaceous earth
Energy storage
Flux density
Lithium
Lithium-ion batteries
Minerals
Montmorillonite
Polyethylenes
Polyolefins
Portable equipment
Product safety
Rechargeable batteries
Separators
Sepiolite
Short circuits
Storage batteries
Zeolites
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Lithium-ion batteries (LIBs) are currently the most widely used portable energy storage devices due to their high energy density and long lifespan. The separator plays a key role in the battery, and its function is to prevent the two electrodes of the battery from contacting, causing the internal short circuit of the battery, and ensuring the lithium ions transportation. Currently, lithium ion battery separators widely used commercially are polyolefin separators, such as polyethylene (PE) and polypropylene (PP) based separators. However, polyolefin separators would shrink at high temperatures, causing battery safety issues, and also causing white pollution. To solve these issues, the use of natural minerals to prepare composite separators for LIBs has attracted widespread attention owing to their unique nano-porous structure, excellent thermal and mechanical stability and being environmentally friendly and low cost. In this review, we present recent application progress of natural minerals in separators for LIBs, including halloysite nanotubes, attapulgite, sepiolite, montmorillonite, zeolite and diatomite. Here, we also have a brief introduction to the basic requirements and properties of the separators in LIBs. Finally, a brief summary of recent developments in natural minerals in the separators is also discussed. Based on the issues of polyolefin separators, the application of natural minerals with unique properties to lithium-ion battery separators has attracted widespread attention.
ISSN:2046-2069
2046-2069
DOI:10.1039/d1ra02845f