Cycling performance of lithium-ion polymer cells assembled with a cross-linked composite polymer electrolyte using a fibrous polyacrylonitrile membrane and vinyl-functionalized SiO2 nanoparticles

2015 ◽  
Vol 3 (23) ◽  
pp. 12163-12170 ◽  
Author(s):  
Won-Kyung Shin ◽  
Ji Hyun Yoo ◽  
Wonchang Choi ◽  
Kyung Yoon Chung ◽  
Seung Soon Jang ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
Lithium Ion ◽  
Sio2 Nanoparticles ◽  
Cycling Performance ◽  
Composite Polymer Electrolyte ◽  
Composite Polymer ◽  
Polyacrylonitrile Membrane

A cross-linked composite polymer electrolyte was prepared with a fibrous PAN membrane and reactive SiO2 nanoparticles.

Study on the cycling performance of LiNi0.5Mn1.5O4 electrodes modified by reactive SiO2 nanoparticles

2014 ◽  
Vol 2 (19) ◽  
pp. 6863-6869 ◽  
Author(s):  
Won-Kyung Shin ◽  
Yoon-Sung Lee ◽  
Dong-Won Kim
Keyword(s):  
Polymer Electrolyte ◽  
Sio2 Nanoparticles ◽  
Cycling Performance ◽  
Composite Polymer Electrolyte ◽  
Composite Polymer ◽  
Electrolyte Layer

The composite polymer electrolyte layer formed by reactive SiO2 nanoparticles on the LiNi0.5Mn1.5O4 material provided good cycling characteristics.

scholarly journals Preparation of Nanocomposite Polymer Electrolyte via In Situ Synthesis of SiO2 Nanoparticles in PEO

Nanomaterials ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 157
Author(s):  
Xinjie Tan ◽  
Yongmin Wu ◽  
Weiping Tang ◽  
Shufeng Song ◽  
Jianyao Yao ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
Sio2 Nanoparticles ◽  
In Situ Synthesis ◽  
Composite Polymer Electrolyte ◽  
Composite Polymer ◽  
Nanocomposite Polymer ◽  
Nanocomposite Polymer Electrolyte ◽  
Electrochemical Window ◽  
Ceramic Fillers

Composite polymer electrolytes provide an emerging solution for new battery development by replacing liquid electrolytes, which are commonly complexes of polyethylene oxide (PEO) with ceramic fillers. However, the agglomeration of fillers and weak interaction restrict their conductivities. By contrast with the prevailing methods of blending preformed ceramic fillers within the polymer matrix, here we proposed an in situ synthesis method of SiO2 nanoparticles in the PEO matrix. In this case, robust chemical interactions between SiO2 nanoparticles, lithium salt and PEO chains were induced by the in situ non-hydrolytic sol gel process. The in situ synthesized nanocomposite polymer electrolyte delivered an impressive ionic conductivity of ~1.1 × 10−4 S cm−1 at 30 °C, which is two orders of magnitude higher than that of the preformed synthesized composite polymer electrolyte. In addition, an extended electrochemical window of up to 5 V vs. Li/Li+ was achieved. The Li/nanocomposite polymer electrolyte/Li symmetric cell demonstrated a stable long-term cycling performance of over 700 h at 0.01–0.1 mA cm−2 without short circuiting. The all-solid-state battery consisting of the nanocomposite polymer electrolyte, Li metal and LiFePO4 provides a discharge capacity of 123.5 mAh g−1, a Coulombic efficiency above 99% and a good capacity retention of 70% after 100 cycles.

High performance composite polymer electrolytes for lithium-ion polymer cells composed of a graphite negative electrode and LiFePO4 positive electrode

RSC Advances ◽  
2015 ◽  
Vol 5 (24) ◽  
pp. 18359-18366 ◽  
Author(s):  
Yoon-Sung Lee ◽  
Won-Kyung Shin ◽  
Jung Soo Kim ◽  
Dong-Won Kim
Keyword(s):  
Polymer Electrolytes ◽  
High Performance ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Composite Polymer Electrolyte ◽  
Core Shell ◽  
Composite Polymer ◽  
Composite Polymer Electrolytes ◽  
High Performance Composite

A lithium-ion polymer cell assembled with a composite polymer electrolyte containing optimized core–shell SiO2 particles exhibited good cycling performance.

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