Preparation and Properties of Gel Polymer Electrolytes with Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> and Li<sub>6.46</sub>La<sub>3</sub>Zr<sub>1.46</sub>Ta<sub>0.54</sub>O<sub>12</sub> by UV Curing Process
Poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)-based gel polymer electrolytes (GPEs) are considered a promising electrolyte candidate for polymer lithium-ion batteries (LIBs) because of their free-standing shape, versatility, security, flexibility, lightweight, reliability, and so on....
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| Format: | Article |
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MDPI AG
2024-02-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/16/4/464 |
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| author | Xinghua Liang Qiankun Hun Lingxiao Lan Bing Zhang Zhikun Chen Yujiang Wang |
| author_facet | Xinghua Liang Qiankun Hun Lingxiao Lan Bing Zhang Zhikun Chen Yujiang Wang |
| author_sort | Xinghua Liang |
| collection | DOAJ |
| description | Poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)-based gel polymer electrolytes (GPEs) are considered a promising electrolyte candidate for polymer lithium-ion batteries (LIBs) because of their free-standing shape, versatility, security, flexibility, lightweight, reliability, and so on. However, due to problems such as low ionic conductivity, PVDF-HFP can only be used on a small scale when used as a substrate alone. To overcome the above shortcomings, GPEs were designed and synthesized by a UV curing process by adding NASICON-type Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> (LAGP) and garnet-type Li<sub>6.46</sub>La<sub>3</sub>Zr<sub>1.46</sub>Ta<sub>0.54</sub>O<sub>12</sub> (LLZTO) to PVDF-HFP. Experimentally, GPEs with 10% weight LLZTO in a PVDF-HFP matrix had an ionic conductivity of up to 3 × 10<sup>−4</sup> S cm<sup>−1</sup> at 25 °C. When assembled into LiFePO<sub>4</sub>/GPEs/Li batteries, a discharge-specific capacity of 81.5 mAh g<sup>−1</sup> at a current density of 1 C and a capacity retention rate of 98.1% after 100 cycles at a current density of 0.2 C occurred. Therefore, GPEs added to LLZTO have a broad application prospect regarding rechargeable lithium-ion batteries. |
| first_indexed | 2024-03-07T22:17:31Z |
| format | Article |
| id | doaj.art-ffd69407095240c1b7f0124aad65125b |
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| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-07T22:17:31Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
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| series | Polymers |
| spelling | doaj.art-ffd69407095240c1b7f0124aad65125b2024-02-23T15:32:11ZengMDPI AGPolymers2073-43602024-02-0116446410.3390/polym16040464Preparation and Properties of Gel Polymer Electrolytes with Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> and Li<sub>6.46</sub>La<sub>3</sub>Zr<sub>1.46</sub>Ta<sub>0.54</sub>O<sub>12</sub> by UV Curing ProcessXinghua Liang0Qiankun Hun1Lingxiao Lan2Bing Zhang3Zhikun Chen4Yujiang Wang5Guangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science & Technology, Liuzhou 545006, ChinaGuangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science & Technology, Liuzhou 545006, ChinaGuangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science & Technology, Liuzhou 545006, ChinaLiuzhou Wuling Automobile Industry Co., Ltd., Liuzhou 545006, ChinaFoshan Taoyuan Advanced Manufacturing Research Institute, Foshan 528225, ChinaGuangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science & Technology, Liuzhou 545006, ChinaPoly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)-based gel polymer electrolytes (GPEs) are considered a promising electrolyte candidate for polymer lithium-ion batteries (LIBs) because of their free-standing shape, versatility, security, flexibility, lightweight, reliability, and so on. However, due to problems such as low ionic conductivity, PVDF-HFP can only be used on a small scale when used as a substrate alone. To overcome the above shortcomings, GPEs were designed and synthesized by a UV curing process by adding NASICON-type Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> (LAGP) and garnet-type Li<sub>6.46</sub>La<sub>3</sub>Zr<sub>1.46</sub>Ta<sub>0.54</sub>O<sub>12</sub> (LLZTO) to PVDF-HFP. Experimentally, GPEs with 10% weight LLZTO in a PVDF-HFP matrix had an ionic conductivity of up to 3 × 10<sup>−4</sup> S cm<sup>−1</sup> at 25 °C. When assembled into LiFePO<sub>4</sub>/GPEs/Li batteries, a discharge-specific capacity of 81.5 mAh g<sup>−1</sup> at a current density of 1 C and a capacity retention rate of 98.1% after 100 cycles at a current density of 0.2 C occurred. Therefore, GPEs added to LLZTO have a broad application prospect regarding rechargeable lithium-ion batteries.https://www.mdpi.com/2073-4360/16/4/464gel polymer electrolytesinterfacial stabilitythermal stabilityUV curing processLAGPLLZTO |
| spellingShingle | Xinghua Liang Qiankun Hun Lingxiao Lan Bing Zhang Zhikun Chen Yujiang Wang Preparation and Properties of Gel Polymer Electrolytes with Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> and Li<sub>6.46</sub>La<sub>3</sub>Zr<sub>1.46</sub>Ta<sub>0.54</sub>O<sub>12</sub> by UV Curing Process Polymers gel polymer electrolytes interfacial stability thermal stability UV curing process LAGP LLZTO |
| title | Preparation and Properties of Gel Polymer Electrolytes with Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> and Li<sub>6.46</sub>La<sub>3</sub>Zr<sub>1.46</sub>Ta<sub>0.54</sub>O<sub>12</sub> by UV Curing Process |
| title_full | Preparation and Properties of Gel Polymer Electrolytes with Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> and Li<sub>6.46</sub>La<sub>3</sub>Zr<sub>1.46</sub>Ta<sub>0.54</sub>O<sub>12</sub> by UV Curing Process |
| title_fullStr | Preparation and Properties of Gel Polymer Electrolytes with Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> and Li<sub>6.46</sub>La<sub>3</sub>Zr<sub>1.46</sub>Ta<sub>0.54</sub>O<sub>12</sub> by UV Curing Process |
| title_full_unstemmed | Preparation and Properties of Gel Polymer Electrolytes with Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> and Li<sub>6.46</sub>La<sub>3</sub>Zr<sub>1.46</sub>Ta<sub>0.54</sub>O<sub>12</sub> by UV Curing Process |
| title_short | Preparation and Properties of Gel Polymer Electrolytes with Li<sub>1.5</sub>Al<sub>0.5</sub>Ge<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub> and Li<sub>6.46</sub>La<sub>3</sub>Zr<sub>1.46</sub>Ta<sub>0.54</sub>O<sub>12</sub> by UV Curing Process |
| title_sort | preparation and properties of gel polymer electrolytes with li sub 1 5 sub al sub 0 5 sub ge sub 1 5 sub po sub 4 sub sub 3 sub and li sub 6 46 sub la sub 3 sub zr sub 1 46 sub ta sub 0 54 sub o sub 12 sub by uv curing process |
| topic | gel polymer electrolytes interfacial stability thermal stability UV curing process LAGP LLZTO |
| url | https://www.mdpi.com/2073-4360/16/4/464 |
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