Effect of microporous structure on thermal shrinkage and electrochemical performance of Al2O3/poly(vinylidene fluoride-hexafluoropropylene) composite separators for lithium-ion batteries

2010 ◽  
Vol 364 (1-2) ◽  
pp. 177-182 ◽  
Author(s):  
Hyun-Seok Jeong ◽  
Sung Chul Hong ◽  
Sang-Young Lee
Author(s):  
Bin Yu ◽  
Xiao-Ming Zhao ◽  
Xiao-Ning Jiao ◽  
Dong-Yue Qi

A new kind of sandwiched composite membrane (SCM) for lithium-ion batteries is prepared by depositing zirconia microparticle between two layers of electrospun poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) nanofibers by electrostatic spray deposition. The thermal shrinkage, electrochemical properties of the separator, and cycle performance for batteries with the SCM were investigated. The results show that the SCM has a high electrolyte uptake and easily absorbs electrolyte to form gelled polymer electrolytes (GPEs). The SCM GPEs have a high ionic conductivity of up to 2.06 × 10−3 S cm−1 at room temperature and show a high electrochemical stability potential of 5.4 V. With LiCoCO2 as cathode, the cell with SCM GPEs exhibits a high initial discharge capacity of 149.7 mAh g−1.


2018 ◽  
Vol 23 (1) ◽  
pp. 277-284 ◽  
Author(s):  
Jiuqing Liu ◽  
Cheng Wang ◽  
Xiufeng Wu ◽  
Fangfang Zhu ◽  
Meng Liu ◽  
...  

2018 ◽  
Vol 5 (16) ◽  
pp. 2288-2294 ◽  
Author(s):  
Min Zheng ◽  
Xuewei Fu ◽  
Yu Wang ◽  
Jacqueline Reeve ◽  
Louis Scudiero ◽  
...  

RSC Advances ◽  
2018 ◽  
Vol 8 (60) ◽  
pp. 34232-34240 ◽  
Author(s):  
Peiqi Lun ◽  
Zilong Chen ◽  
Zhenbao Zhang ◽  
Shaozao Tan ◽  
Dengjie Chen

The special structure of HNTs and the further formation of amorphous PVDF contribute to the enhancement of the Li+transfer.


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