Controlling the electrical conductive network formation of polymer nanocomposites via polymer functionalization

Soft Matter ◽  
2016 ◽  
Vol 12 (48) ◽  
pp. 9738-9748 ◽  
Author(s):  
Yangyang Gao ◽  
Youping Wu ◽  
Jun Liu ◽  
Liqun Zhang
2018 ◽  
Vol 91 (4) ◽  
pp. 757-766 ◽  
Author(s):  
Fanzhu Li ◽  
Huan Zhang ◽  
Tiantian Li ◽  
Jun Liu ◽  
Yangyang Gao ◽  
...  

ABSTRACT It is very important to improve the electrical conductivity of polymer nanocomposites, which can widen their application. The effect of the nanofiller shape on the relationship between the nanofiller microstructure and the conductive probability of the nanofiller filled polymer nanocomposites (PNCs) has been investigated in detail by employing a coarse-grained molecular dynamics simulation. Four kinds of nanofiller shapes are considered: rod filler, Y filler, X filler, and sphere filler. First, the mean square radius of gyration gradually decreases from rod filler, Y filler, X filler, to sphere filler, which reflects the highest aspect ratio for rod filler. Meanwhile, the dispersion state of the nanofiller is relatively uniform in the matrix. The conductive probability (denoted by the formation probability of the conductive network) is adopted to stand for the conductive property. The results show that the conductive probability gradually decreases from rod filler, Y filler, X filler, to sphere filler, which is attributed to their gradually decreased size. In summary, the nanofiller shape affects the electric conductive property of PNCs.


Soft Matter ◽  
2019 ◽  
Vol 15 (31) ◽  
pp. 6331-6339 ◽  
Author(s):  
Yangyang Gao ◽  
Xiaohui Duan ◽  
Peng Jiang ◽  
Huan Zhang ◽  
Jun Liu ◽  
...  

It is a simple method to utilize diblock copolymer-mediated nanoparticles to control the conductive network formation, which can help to design the nanocomposites with the high electrical conductivity, especially the anisotropy.


RSC Advances ◽  
2018 ◽  
Vol 8 (53) ◽  
pp. 30248-30256 ◽  
Author(s):  
Yangyang Gao ◽  
Ruibin Ma ◽  
Huan Zhang ◽  
Jun Liu ◽  
Xiuying Zhao ◽  
...  

In this work, by employing a coarse-grained molecular simulation, we investigated the effect of the nanorod stiffness on the relationship between the microstructure and the conductive probability under the quiescent state and under the shear field.


Polymer ◽  
2016 ◽  
Vol 101 ◽  
pp. 395-405 ◽  
Author(s):  
Yangyang Gao ◽  
Dapeng Cao ◽  
Youping Wu ◽  
Jun Liu ◽  
Liqun Zhang

2018 ◽  
Vol 20 (34) ◽  
pp. 21822-21831 ◽  
Author(s):  
Fanzhu Li ◽  
Xiaohui Duan ◽  
Huan Zhang ◽  
Bin Li ◽  
Jun Liu ◽  
...  

Grafting chains on the surface of a filler is an effective strategy to tune and control the filler conductive network, which can be utilized to fabricate polymer nanocomposites (PNCs) with high electrical conductivity.


ACS Nano ◽  
2021 ◽  
Author(s):  
Benjamin M. Yavitt ◽  
Daniel Salatto ◽  
Yuxing Zhou ◽  
Zhixing Huang ◽  
Maya Endoh ◽  
...  

Langmuir ◽  
2007 ◽  
Vol 23 (15) ◽  
pp. 7990-7994 ◽  
Author(s):  
Atsumi Wakabayashi ◽  
Yuki Sasakawa ◽  
Toshiaki Dobashi ◽  
Takao Yamamoto

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xinming Fan ◽  
Xing Ou ◽  
Wengao Zhao ◽  
Yun Liu ◽  
Bao Zhang ◽  
...  

AbstractHigh nickel content in LiNixCoyMnzO2 (NCM, x ≥ 0.8, x + y + z = 1) layered cathode material allows high specific energy density in lithium-ion batteries (LIBs). However, Ni-rich NCM cathodes suffer from performance degradation, mechanical and structural instability upon prolonged cell cycling. Although the use of single-crystal Ni-rich NCM can mitigate these drawbacks, the ion-diffusion in large single-crystal particles hamper its rate capability. Herein, we report a strategy to construct an in situ Li1.4Y0.4Ti1.6(PO4)3 (LYTP) ion/electron conductive network which interconnects single-crystal LiNi0.88Co0.09Mn0.03O2 (SC-NCM88) particles. The LYTP network facilitates the lithium-ion transport between SC-NCM88 particles, mitigates mechanical instability and prevents detrimental crystalline phase transformation. When used in combination with a Li metal anode, the LYTP-containing SC-NCM88-based cathode enables a coin cell capacity of 130 mAh g−1 after 500 cycles at 5 C rate in the 2.75-4.4 V range at 25 °C. Tests in Li-ion pouch cell configuration (i.e., graphite used as negative electrode active material) demonstrate capacity retention of 85% after 1000 cycles at 0.5 C in the 2.75-4.4 V range at 25 °C for the LYTP-containing SC-NCM88-based positive electrode.


2011 ◽  
Vol 47 (8) ◽  
pp. 3713-3719 ◽  
Author(s):  
Yi-Chuan Zhang ◽  
Huan Pang ◽  
Kun Dai ◽  
Yan-Fei Huang ◽  
Peng-Gang Ren ◽  
...  

2015 ◽  
Vol 64 (9) ◽  
pp. 1262-1267 ◽  
Author(s):  
Ali Sarvi ◽  
Aline B Silva ◽  
Rosario ES Bretas ◽  
Uttandaraman Sundararaj

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