scholarly journals Excellent Performances of Composite Polymer Electrolytes with Porous Vinyl-Functionalized SiO2 Nanoparticles for Lithium Metal Batteries

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2468
Author(s):  
Hui Zhan ◽  
Mengjun Wu ◽  
Rui Wang ◽  
Shuohao Wu ◽  
Hao Li ◽  
...  

Composite polymer electrolytes (CPEs) incorporate the advantages of solid polymer electrolytes (SPEs) and inorganic solid electrolytes (ISEs), which have shown huge potential in the application of safe lithium-metal batteries (LMBs). Effectively avoiding the agglomeration of inorganic fillers in the polymer matrix during the organic–inorganic mixing process is very important for the properties of the composite electrolyte. Herein, a partial cross-linked PEO-based CPE was prepared by porous vinyl-functionalized silicon (p-V-SiO2) nanoparticles as fillers and poly (ethylene glycol diacrylate) (PEGDA) as cross-linkers. By combining the mechanical rigidity of ceramic fillers and the flexibility of PEO, the as-made electrolyte membranes had excellent mechanical properties. The big special surface area and pore volume of nanoparticles inhibited PEO recrystallization and promoted the dissolution of lithium salt. Chemical bonding improved the interfacial compatibility between organic and inorganic materials and facilitated the homogenization of lithium-ion flow. As a result, the symmetric Li|CPE|Li cells could operate stably over 450 h without a short circuit. All solid Li|LiFePO4 batteries were constructed with this composite electrolyte and showed excellent rate and cycling performances. The first discharge-specific capacity of the assembled battery was 155.1 mA h g−1, and the capacity retention was 91% after operating for 300 cycles at 0.5 C. These results demonstrated that the chemical grafting of porous inorganic materials and cross-linking polymerization can greatly improve the properties of CPEs.

2020 ◽  
Vol 3 (11) ◽  
pp. 11024-11035
Author(s):  
Hoai Khang Tran ◽  
Yi-Shiuan Wu ◽  
Wen-Chen Chien ◽  
She-huang Wu ◽  
Rajan Jose ◽  
...  

2019 ◽  
Vol 7 (8) ◽  
pp. 4190-4190 ◽  
Author(s):  
Yang Li ◽  
Wei Zhang ◽  
Qianqian Dou ◽  
Ka Wai Wong ◽  
Ka Ming Ng

Correction for ‘Li7La3Zr2O12 ceramic nanofiber-incorporated composite polymer electrolytes for lithium metal batteries’ by Yang Li et al., J. Mater. Chem. A, 2019, DOI: 10.1039/c8ta11449h.


1998 ◽  
Vol 548 ◽  
Author(s):  
M. Mastragostino ◽  
F. Soavi ◽  
A. Zanelli

ABSTRACTWe have demonstrated that PEO-based polymer electrolytes prepared by solvent-free procedures and with the addition of particle-size ceramic powder have very stable lithium interface properties—a very important feature for the development of successful lithium metal polymer batteries (LPBs). The results of cyclability tests at different charge-discharge rates carried out on prototypes of LPBs assembled with the dry prepared PEO20-LiCF3SO3-20%w/w λLiAlO2 composite electrolyte and with a composite cathode based on LiMn204 spinel operating at 3V are reported and discussed.


1997 ◽  
Vol 496 ◽  
Author(s):  
G. B. Appetecchi ◽  
F. Croce ◽  
G. Dautzenberg ◽  
B. Scrosati

AbstractThe synthesis, characteristics and properties of a PEO-based, dry composite electrolyte are presented and discussed. The major feature of this electrolyte is the high stability towards the lithium metal electrode. This unique property makes the electrolyte quite promising for the development of rechargeable polymer lithium batteries.


2019 ◽  
Vol 7 (7) ◽  
pp. 3391-3398 ◽  
Author(s):  
Yang Li ◽  
Wei Zhang ◽  
Qianqian Dou ◽  
Ka Wai Wong ◽  
Ka Ming Ng

A composite polymer electrolyte (CPE) based on garnet Li7La3Zr2O12 (LLZO) nanofiber-incorporated PVDF-HFP is reported.


Polymer ◽  
2021 ◽  
pp. 123695
Author(s):  
Yubing Chen ◽  
Guangping Chen ◽  
Chaoqun Niu ◽  
Wenyan Shang ◽  
Rentong Yu ◽  
...  

Author(s):  
Meng Yao ◽  
Haitao Zhang ◽  
Kun Dong ◽  
Bosen Li ◽  
Chunxian Xing ◽  
...  

With the in situ polymerization of liquid crystal (LC), more free lithium ions are released, which enhances the performance of P-PLC-IL.


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