Hexagonal boron nitride induces anion trapping in a polyethylene oxide based solid polymer electrolyte for lithium dendrite inhibition

2020 ◽  
Vol 8 (19) ◽  
pp. 9579-9589 ◽  
Author(s):  
Yuhan Li ◽  
Libo Zhang ◽  
Zongjie Sun ◽  
Guoxin Gao ◽  
Shiyao Lu ◽  
...  

Lithium ion conductivity and mechanical strength of a PEO based composite solid polymer electrolyte are improved by adding h-BN.

Nanoscale ◽  
2015 ◽  
Vol 7 (41) ◽  
pp. 17516-17522 ◽  
Author(s):  
M. Kammoun ◽  
S. Berg ◽  
H. Ardebili

A novel flexible thin-film lithium ion battery containing polyethylene oxide (PEO) with 1% graphene oxide (GO) nanosheets is fabricated that offers enhanced safety, flexibility, stability and high capacity.


Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2559 ◽  
Author(s):  
Ye Lim ◽  
Hyun-Ah Jung ◽  
Haejin Hwang

To improve the ionic conductivity and thermal stability of a polyethylene oxide (PEO)-ethylene carbonate (EC)-LiClO4-based solid polymer electrolyte for lithium-ion batteries, polymethyl methacrylate (PMMA) and silica aerogel were incorporated into the PEO matrix. The effects of the PEO:PMMA molar ratio and the amount of silica aerogel on the structure of the PEO-PMMA-LiClO4 solid polymer electrolyte were studied by X-ray diffraction, Fourier-transform infrared spectroscopy and alternating current (AC) impedance measurements. The solid polymer electrolyte with PEO:PMMA = 8:1 and 8 wt% silica aerogel exhibited the highest lithium-ion conductivity (1.35 × 10−4 S∙cm−1 at 30 °C) and good mechanical stability. The enhanced amorphous character and high degree of dissociation of the LiClO4 salt were responsible for the high lithium-ion conductivity observed. Silica aerogels with a high specific surface area and mesoporosity could thus play an important role in the development of solid polymer electrolytes with improved structure and stability.


2018 ◽  
Vol 6 (48) ◽  
pp. 24848-24859 ◽  
Author(s):  
Zhen Li ◽  
Qiming Yao ◽  
Qi Zhang ◽  
Yangqiang Zhao ◽  
Dangxun Gao ◽  
...  

An approach to construct ionic channels in SICSPEs by blending pre-assembled ionic nanowires and hyperbranched polymers for high lithium-ion conductivity.


2021 ◽  
Vol 38 (2) ◽  
pp. 454-460
Author(s):  
Minsik Hwang ◽  
Ji San Jeong ◽  
Jae-Chul Lee ◽  
Seongil Yu ◽  
Hyun Seok Jung ◽  
...  

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Christin Rina Ratri

<p>Electrolyte plays a key role in lithium-ion battery system. Safety and reliability factor was the main background of the development of solid polymer electrolyte as a substitute the conventional electrolyte in liquid form. Preparation and characterisation of a polymer electrolyte system based on lithium bis(oxalato) borate or LiBOB salt and PVdF as the host matrix has been performed. LiBOB salt and PVdF polymer were dissolved in DMAC solvent followed by solid polymer electrolyte forming by means of doctor blade method. The membranes obtained were characterised by FT-IR, XRD, and EIS. It was shown that the electrolyte exhibited higher room ionic conductivity with the increase of salt concentration, with highest conductivity value of 1.22 × 10<sup>-6</sup> Scm<sup>-1</sup> for 70% LiBOB concentration.</p><p><strong> </strong></p>


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