scholarly journals One-step radiation synthesis of gel polymer electrolytes with high ionic conductivity for lithium-ion batteries

2017 ◽  
Vol 5 (24) ◽  
pp. 12393-12399 ◽  
Author(s):  
Yimeng Wang ◽  
Jingyi Qiu ◽  
Jing Peng ◽  
Jiuqiang Li ◽  
Maolin Zhai
Keyword(s):  
Lithium Ion Batteries ◽  
Gel Polymer Electrolyte ◽  
Synthesis Method ◽  
Lithium Ion ◽  
Liquid Electrolyte ◽  
Γ Radiation ◽  
Glycol Diacrylate ◽  
Radiation Technique ◽  
One Step ◽  
Poly Ethylene

We demonstrated a one-step synthesis method for a novel gel polymer electrolyte (named PDMP-Li GPE) based on 3-(dimethylamino) propyl methacrylate, poly(ethylene glycol) diacrylate and 1 M LiPF6 liquid electrolyte solution by a γ-radiation technique for lithium-ion batteries.

scholarly journals Fabrication of UV-Crosslinked Flexible Solid Polymer Electrolyte with PDMS for Li-Ion Batteries

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 15
Author(s):  
Sandugash Kalybekkyzy ◽  
Al-Farabi Kopzhassar ◽  
Memet Vezir Kahraman ◽  
Almagul Mentbayeva ◽  
Zhumabay Bakenov
Keyword(s):  
Ethylene Glycol ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Potential Candidate ◽  
Poly Ethylene Glycol ◽  
Glycol Diacrylate ◽  
Wide Range ◽  
Poly Ethylene

Conventional carbonate-based liquid electrolytes have safety issues related to their high flammability and easy leakage. Therefore, it is essential to develop alternative electrolytes for lithium-ion batteries (LIBs). As a potential candidate, solid-polymer electrolytes (SPEs) offer enhanced safety characteristics, while to be widely applied their performance still has to be improved. Here, we have prepared a series of UV-photocrosslinked flexible SPEs comprising poly(ethylene glycol) diacrylate (PEGDA), trimethylolpropane ethoxylate triacrylate (ETPTA), and lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) salt, with the addition of polydimethylsiloxane with acrylated terminal groups (acryl-PDMS) to diminish the crystallinity of the poly(ethylene glycol) chain. Polysiloxanes have gained interest for the fabrication of SPEs due to their unique features, such as decrement of glass transition temperature (Tg), and the ability to improve flexibility and facilitate lithium-ion transport. Freestanding, transparent SPEs with excellent flexibility and mechanical properties were achieved without any supporting backbone, despite the high content of lithium salt, which was enabled by their networked structure, the presence of polar functional groups, and their amorphous structure. The highest ionic conductivity for the developed cross-linked SPEs was 1.75 × 10−6 S cm−1 at room temperature and 1.07 × 10−4 S cm−1 at 80 °C. The SPEs demonstrated stable Li plating/stripping ability and excellent compatibility toward metallic lithium, and exhibited high electrochemical stability in a wide range of potentials, which enables application in high-voltage lithium-ion batteries.

scholarly journals Highly Conductive and Flexible Gel Polymer Electrolyte with Bis(Fluorosulfonyl)imide Lithium Salt via UV Curing for Li-Ion Batteries

Membranes ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 139
Author(s):  
Lei Jin ◽  
Faiz Ahmed ◽  
Taewook Ryu ◽  
Sujin Yoon ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Polymer Electrolytes ◽  
Mechanical Stability ◽  
Gel Polymer Electrolyte ◽  
Lithium Ion ◽  
Uv Curing ◽  
Gel Polymer Electrolytes ◽  
Good Thermal Stability ◽  
Poly Ethylene ◽  
High Flexibility

A series of new self-standing gel polymer electrolytes (SGPEs) were fabricated by ultraviolet (UV) curing and investigated for application in flexible lithium-ion batteries. Compared with traditional gel polymer electrolytes (combine with solvents or plasticizers), these new SGPEs were prepared simply by curing different weight ratios of lithium bis(fluorosulfonyl)imide (LiFSI) with a methacrylic linear monomer, poly (ethylene glycol) dimethacrylate (PEGDMA). Noticeably, there were no solvents or plasticizers combined with the final SGPEs. Owing to this, the SGPEs showed high flexibility and strong mechanical stability. Some paramount physicochemical and electrochemical characters were observed. The SGPEs demonstrated good thermal stability below 150 °C and an extremely low glass transition temperature (Tg) (around −75 °C). Moreover, plastic crystal behaviors were also identified in this study. Ultimately, the SGPEs demonstrated excellent ionic conductivity at room temperature, which proves that these new SGPEs could be widely applied as a prospective electrolyte in flexible lithium-ion batteries.

scholarly journals One-Step Synthesis of SnO2/Carbon Nanotube Nanonests Composites by Direct Current Arc-Discharge Plasma and Its Application in Lithium-Ion Batteries

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3138
Author(s):  
Da Zhang ◽  
Yuanzheng Tang ◽  
Chuanqi Zhang ◽  
Qianpeng Dong ◽  
Wenming Song ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Lithium Ion Batteries ◽  
Direct Current ◽  
Discharge Plasma ◽  
Arc Discharge ◽  
Synthesis Method ◽  
Lithium Ion ◽  
Synthesis Process ◽  
Plasma Synthesis ◽  
One Step

Tin dioxide (SnO2)-based materials, as anode materials for lithium-ion batteries (LIBs), have been attracting growing research attention due to the high theoretical specific capacity. However, the complex synthesis process of chemical methods and the pollution of chemical reagents limit its commercialization. The new material synthesis method is of great significance for expanding the application of SnO2-based materials. In this study, the SnO2/carbon nanotube nanonests (SnO2/CNT NNs) composites are synthesized in one step by direct current (DC) arc-discharge plasma; compared with conventional methods, the plasma synthesis achieves a uniform load of SnO2 nanoparticles on the surfaces of CNTs while constructing the CNTs conductive network. The SnO2/CNT NNs composites are applied in LIBs, it can be found that the nanonest-like CNT conductive structure provides adequate room for the volume expansion and also helps to transfer the electrons. Electrochemical measurements suggests that the SnO2/CNT NNscomposites achieve high capacity, and still have high electrochemical stability and coulombic efficiency under high current density, which proves the reliability of the synthesis method. This method is expected to be industrialized and also provides new ideas for the preparation of other nanocomposites.

scholarly journals A Gel Polymer Electrolyte Reinforced Membrane for Lithium-Ion Batteries via the Simultaneous-Irradiation of the Electron Beam

Membranes ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 219
Author(s):  
Jian Hou ◽  
In Kee Park ◽  
Woo Ju Cha ◽  
Chang Hyun Lee
Keyword(s):  
Electron Beam ◽  
Lithium Ion Batteries ◽  
Gel Polymer Electrolyte ◽  
Lithium Ion ◽  
Liquid Electrolyte ◽  
Ion Conductivity ◽  
Cycle Performance ◽  
Good Efficiency ◽  
Simultaneous Irradiation ◽  
Mechanical Durability

In this research, a series of innovative and stable cross-linked gel polymer reinforced membranes (GPRMs), were successfully prepared and investigated for application in lithium-ion batteries. Herein, a gel directly within the commercial polyethylene (PE) separator is supported via electron-beam simultaneous irradiation cross-linking of commercial liquid electrolyte and poly(ethylene glycol) methacrylate (PEGMA) oligomers. The physical and electrochemical properties of the GPRMs were characterized by SEM, TEM, mechanical durability, heating shrinkage, and ion conductivity, etc. The GPRMs demonstrated excellent mechanical durability and high ion conductivity compared with traditional PE membranes. Moreover, coin-typed cells were assembled and cycle performance was also studied compared with same-typed cells with commercial PE membrane and liquid electrolyte. As a result, the coin-typed cells using GPRMs also showed a relatively good efficiency on the 50th cycles at a high 1.0 C-rate. These GPRMs with excellent properties present a very promising material for utilization in high-performance lithium-ion batteries with improved safety and reliability.

Ultrastable Lithium-Ion Batteries Prepared by Introducing γ-LiAlO2 in a Gel Polymer Electrolyte at 50 °C Working Temperature

2021 ◽  
Vol 4 (4) ◽  
pp. 3633-3643
Author(s):  
Caihong Xue ◽  
Dandan Jin ◽  
Hui Nan ◽  
Haomin Wei ◽  
Huiyuan Chen ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Polymer Electrolyte ◽  
Gel Polymer Electrolyte ◽  
Lithium Ion ◽  
Working Temperature
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