IMPROVING THE PROPERTIES OF HDPE BASED SEPARATORS FOR LITHIUM ION BATTERIES BY BLENDING BLOCK WITH COPOLYMER PE-<italic style="font-style: italic">b</italic>-PEG

Jun-li Shi; Hao Li; Li-feng Fang; Zhi-ying Liang; Bao-ku Zhu

doi:10.1007/s10118-013-1222-y

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IMPROVING THE PROPERTIES OF HDPE BASED SEPARATORS FOR LITHIUM ION BATTERIES BY BLENDING BLOCK WITH COPOLYMER PE-b-PEG

PAPER | Updated：2023-01-03

- IMPROVING THE PROPERTIES OF HDPE BASED SEPARATORS FOR LITHIUM ION BATTERIES BY BLENDING BLOCK WITH COPOLYMER PE-b-PEG
- Chinese Journal of Polymer Science Vol. 31, Issue 2, Pages: 309-317(2013)
- Affiliations：
  
  Department of Polymer Science and Engineering, ERC of Membrane and Water Treatment Technology, Key Laboratory of Macromolecular Synthesis and Functionalization, MOE, Zhejiang University, Hangzhou 310027, China
- Author bio：
  
  **Bao-ku Zhu (朱宝库), E-mail: zhubk@zju.edu.cn
- Funds：
- DOI：10.1007/s10118-013-1222-y
  CLC：
- Received：04 May 2012，
  
  Revised：2012-06-28，
  
  Accepted：03 July 2012，
  
  Published：2013-02
- Accepted：
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Jun-li Shi, Hao Li, Li-feng Fang, et al. IMPROVING THE PROPERTIES OF HDPE BASED SEPARATORS FOR LITHIUM ION BATTERIES BY BLENDING BLOCK WITH COPOLYMER PE-b-PEG[J]. Chinese Journal of Polymer Science, 2013, 31(2): 309-317. DOI: 10.1007/s10118-013-1222-y.
DOI：

Jun-li Shi, Hao Li, Li-feng Fang, et al. IMPROVING THE PROPERTIES OF HDPE BASED SEPARATORS FOR LITHIUM ION BATTERIES BY BLENDING BLOCK WITH COPOLYMER PE-b-PEG[J]. Chinese Journal of Polymer Science, 2013, 31(2): 309-317. DOI: 10.1007/s10118-013-1222-y. DOI：

摘要

Abstract

To improve the performances of HDPE-based separators

polyether chains were incorporated into HDPE membranes by blending with poly(ethylene-

block

-ethylene glycol) (PE-

-PEG)

via

thermally induced phase separation (TIPS) process. By measuring the composition

morphology

crystallinity

ion conductivity

etc

the influence of PE-

-PEG on structures and properties of the blend separator were investigated. It was found that the incorporated PEG chains yielded higher surface energy for HDPE separator and improved affinity to liquid electrolyte. Thus

the stability of liquid electrolyte trapped in separator was increased while the interfacial resistance between separator and electrode was reduced effectively. The ionic conductivity of liquid electrolyte soaked separator could reach 1.28 × 10

−3

S⋅cm

−1

at 25℃

and the electrochemical stability window was up to 4.5 V (versus Li

/Li). These results revealed that blending PE-

-PEG into porous HDPE membranes could efficiently improve the performances of PE separators for lithium batteries.

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IMPROVING THE PROPERTIES OF HDPE BASED SEPARATORS FOR LITHIUM ION BATTERIES BY BLENDING BLOCK WITH COPOLYMER PE-b-PEG

DOI：10.1007/s10118-013-1222-y

摘要

Abstract

关键词

Keywords

references