Gel Polymer Electrolyte with High Performances Based on Polyvinylidene Fluoride Composite Eco-Friendly Lignocellulose for Lithium-Ion Batteries

2021 ◽  
Author(s):  
He Zheng ◽  
Junyuan Gan ◽  
Yun Huang ◽  
Xi Xu ◽  
Jiapin Liu ◽  
...  
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.


2021 ◽  
Vol 4 (4) ◽  
pp. 3633-3643
Author(s):  
Caihong Xue ◽  
Dandan Jin ◽  
Hui Nan ◽  
Haomin Wei ◽  
Huiyuan Chen ◽  
...  

2020 ◽  
Vol 138 (11) ◽  
pp. 49993
Author(s):  
Kaili Luo ◽  
Dingsheng Shao ◽  
Li Yang ◽  
Lei Liu ◽  
Xiaoyi Chen ◽  
...  

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