A novel polyvinylidene fluoride/microfiber composite gel polymer electrolyte with an interpenetrating network structure for lithium ion battery

2014 ◽  
Vol 125 ◽  
pp. 450-456 ◽  
Author(s):  
Jinglei Hao ◽  
Qizhen Xiao ◽  
Gangtie Lei ◽  
Zhaohui Li ◽  
Lijun Wu
2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Wenhan Luo ◽  
Kuirong Deng ◽  
Shuanjin Wang ◽  
Shan Ren ◽  
Dongmei Han ◽  
...  

Here, we describe the synthesis of a CO2-based polycarbonate with pendent alkene groups and its functionalization by grafting methoxypolyethylene glycol in view of its application possibility in gel polymer electrolyte lithium-ion batteries. The gel polymer electrolyte is prepared by an in-situ thiol-ene click reaction between polycarbonate with pendent alkene groups and thiolated methoxypolyethylene glycol in liquid lithium hexafluorophosphate electrolyte and exhibits conductivity as remarkably high as 2.0×10−2 S cm−1 at ambient temperature. To the best of our knowledge, this gel polymer electrolyte possesses the highest conductivity in all relevant literatures. A free-standing composite gel polymer electrolyte membrane is obtained by incorporating the gel polymer electrolyte with electrospun polyvinylidene fluoride as a skeleton. The as-prepared composite membrane is used to assemble a prototype lithium iron phosphate cell and evaluated accordingly. The battery delivers a good reversible charge-discharge capacity close to 140 mAh g-1 at 1 C rate and 25°C with only 0.022% per cycle decay after 200 cycles. This work provides an interesting molecular design for polycarbonate application in gel electrolyte lithium-ion batteries.


2015 ◽  
Vol 61 ◽  
pp. 32-35 ◽  
Author(s):  
Pu Hu ◽  
Jianghui Zhao ◽  
Tianshi Wang ◽  
Chaoqun Shang ◽  
Junnan Zhang ◽  
...  

2020 ◽  
Vol 246 ◽  
pp. 116622 ◽  
Author(s):  
Feng Yu ◽  
Hongbing Zhang ◽  
Lingzhu Zhao ◽  
Zhipeng Sun ◽  
Yuli Li ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document