Electrochemical Performance of a PVDF-HFP-LiClO<sub>4</sub>-Li<sub>6.4</sub>La<sub>3.0</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub> Composite Solid Electrolyte at Different Temperatures
The stability and wide temperature performance range of solid electrolytes are the keys to the development of high-energy density all-solid-state lithium-ion batteries. In this work, a PVDF-HFP-LiClO<sub>4</sub>-Li<sub>6.4</sub>La<sub>3</sub>Zr<sub>1.4</s...
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MDPI AG
2022-09-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/19/3390 |
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| author | Xinghua Liang Yujuan Ning Linxiao Lan Guanhua Yang Minghua Li Shufang Tang Jianling Huang |
| author_facet | Xinghua Liang Yujuan Ning Linxiao Lan Guanhua Yang Minghua Li Shufang Tang Jianling Huang |
| author_sort | Xinghua Liang |
| collection | DOAJ |
| description | The stability and wide temperature performance range of solid electrolytes are the keys to the development of high-energy density all-solid-state lithium-ion batteries. In this work, a PVDF-HFP-LiClO<sub>4</sub>-Li<sub>6.4</sub>La<sub>3</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub> (LLZTO) composite solid electrolyte was prepared using the solution pouring method. The PVDF-HFP-LiClO<sub>4</sub>-LLZTO composite solid electrolyte shows excellent electrochemical performance in the temperature range of 30 to 60 °C. By assembling this electrolyte into the battery, the LiFePO<sub>4</sub>/PVDF-HFP-LiClO<sub>4</sub>-LLZTO/Li battery shows outstanding electrochemical performance in the temperature range of 30 to 60 °C. The ionic conductivity of the composite electrolyte membrane at 30 °C and 60 °C is 5.5 × 10<sup>−5</sup> S cm<sup>−1</sup> and 1.0 × 10<sup>−5</sup> S cm<sup>−1</sup>, respectively. At a current density of 0.2 C, the LiFePO<sub>4</sub>/PVDF-HFP-LiClO<sub>4</sub>-LLZTO/Li battery shows a high initial specific discharge capacity of 133.3 and 167.2 mAh g<sup>−1</sup> at 30 °C and 60 °C, respectively. After 50 cycles, the reversible electrochemical capacity of the battery is 121.5 and 154.6 mAh g<sup>−1</sup> at 30 °C and 60 °C; the corresponding capacity retention rates are 91.2% and 92.5%, respectively. Therefore, this work provides an effective strategy for the design and preparation of solid-state lithium-ion batteries. |
| first_indexed | 2024-03-09T21:21:46Z |
| format | Article |
| id | doaj.art-6e1df88775c74802a993cd6ad83d3a4c |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T21:21:46Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-6e1df88775c74802a993cd6ad83d3a4c2023-11-23T21:19:18ZengMDPI AGNanomaterials2079-49912022-09-011219339010.3390/nano12193390Electrochemical Performance of a PVDF-HFP-LiClO<sub>4</sub>-Li<sub>6.4</sub>La<sub>3.0</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub> Composite Solid Electrolyte at Different TemperaturesXinghua Liang0Yujuan Ning1Linxiao Lan2Guanhua Yang3Minghua Li4Shufang Tang5Jianling Huang6Guangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science and Technology, Liuzhou 545006, ChinaGuangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science and Technology, Liuzhou 545006, ChinaGuangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science and Technology, Liuzhou 545006, ChinaGuangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science and Technology, Liuzhou 545006, ChinaSchool of Electrical Technology, Guangdong Mechanical & Electrical Polytechnic, Guangzhou 510515, ChinaCollege of Automotive Engineering, Liuzhou Institute of Technology, Liuzhou 545616, ChinaGuangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science and Technology, Liuzhou 545006, ChinaThe stability and wide temperature performance range of solid electrolytes are the keys to the development of high-energy density all-solid-state lithium-ion batteries. In this work, a PVDF-HFP-LiClO<sub>4</sub>-Li<sub>6.4</sub>La<sub>3</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub> (LLZTO) composite solid electrolyte was prepared using the solution pouring method. The PVDF-HFP-LiClO<sub>4</sub>-LLZTO composite solid electrolyte shows excellent electrochemical performance in the temperature range of 30 to 60 °C. By assembling this electrolyte into the battery, the LiFePO<sub>4</sub>/PVDF-HFP-LiClO<sub>4</sub>-LLZTO/Li battery shows outstanding electrochemical performance in the temperature range of 30 to 60 °C. The ionic conductivity of the composite electrolyte membrane at 30 °C and 60 °C is 5.5 × 10<sup>−5</sup> S cm<sup>−1</sup> and 1.0 × 10<sup>−5</sup> S cm<sup>−1</sup>, respectively. At a current density of 0.2 C, the LiFePO<sub>4</sub>/PVDF-HFP-LiClO<sub>4</sub>-LLZTO/Li battery shows a high initial specific discharge capacity of 133.3 and 167.2 mAh g<sup>−1</sup> at 30 °C and 60 °C, respectively. After 50 cycles, the reversible electrochemical capacity of the battery is 121.5 and 154.6 mAh g<sup>−1</sup> at 30 °C and 60 °C; the corresponding capacity retention rates are 91.2% and 92.5%, respectively. Therefore, this work provides an effective strategy for the design and preparation of solid-state lithium-ion batteries.https://www.mdpi.com/2079-4991/12/19/3390lithium-ion batterysolid-state electrolytecompositeelectrochemical performance |
| spellingShingle | Xinghua Liang Yujuan Ning Linxiao Lan Guanhua Yang Minghua Li Shufang Tang Jianling Huang Electrochemical Performance of a PVDF-HFP-LiClO<sub>4</sub>-Li<sub>6.4</sub>La<sub>3.0</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub> Composite Solid Electrolyte at Different Temperatures Nanomaterials lithium-ion battery solid-state electrolyte composite electrochemical performance |
| title | Electrochemical Performance of a PVDF-HFP-LiClO<sub>4</sub>-Li<sub>6.4</sub>La<sub>3.0</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub> Composite Solid Electrolyte at Different Temperatures |
| title_full | Electrochemical Performance of a PVDF-HFP-LiClO<sub>4</sub>-Li<sub>6.4</sub>La<sub>3.0</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub> Composite Solid Electrolyte at Different Temperatures |
| title_fullStr | Electrochemical Performance of a PVDF-HFP-LiClO<sub>4</sub>-Li<sub>6.4</sub>La<sub>3.0</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub> Composite Solid Electrolyte at Different Temperatures |
| title_full_unstemmed | Electrochemical Performance of a PVDF-HFP-LiClO<sub>4</sub>-Li<sub>6.4</sub>La<sub>3.0</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub> Composite Solid Electrolyte at Different Temperatures |
| title_short | Electrochemical Performance of a PVDF-HFP-LiClO<sub>4</sub>-Li<sub>6.4</sub>La<sub>3.0</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub> Composite Solid Electrolyte at Different Temperatures |
| title_sort | electrochemical performance of a pvdf hfp liclo sub 4 sub li sub 6 4 sub la sub 3 0 sub zr sub 1 4 sub ta sub 0 6 sub o sub 12 sub composite solid electrolyte at different temperatures |
| topic | lithium-ion battery solid-state electrolyte composite electrochemical performance |
| url | https://www.mdpi.com/2079-4991/12/19/3390 |
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