Nafion-212 Membrane Solvated by Ethylene and Propylene Carbonates as Electrolyte for Lithium Metal Batteries
The use of cation-exchange membranes as electrolytes for lithium metal batteries can prevent the formation of lithium dendrites during extended cycling and guarantee safe battery operation. In our study, the Nafion-212 membrane in lithium form solvated by a mixture of ethylene carbonate and propylen...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-11-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/15/22/4340 |
| _version_ | 1797457948707913728 |
|---|---|
| author | Daria Voropaeva Svetlana Novikova Irina Stenina Andrey Yaroslavtsev |
| author_facet | Daria Voropaeva Svetlana Novikova Irina Stenina Andrey Yaroslavtsev |
| author_sort | Daria Voropaeva |
| collection | DOAJ |
| description | The use of cation-exchange membranes as electrolytes for lithium metal batteries can prevent the formation of lithium dendrites during extended cycling and guarantee safe battery operation. In our study, the Nafion-212 membrane in lithium form solvated by a mixture of ethylene carbonate and propylene carbonate (EC-PC) was used as an electrolyte in a lithium metal battery with the LiFePO<sub>4</sub> cathode. The Nafion-212-EC-PC electrolyte is electrochemically stable up to 6 V, indicating its suitability for high-energy density batteries. It has an ionic conductivity of 1.9 × 10<sup>−4</sup> S/cm at 25 °C and a high lithium transference number. The symmetric Li|Nafion-212-EC-PC|Li cell shows a very low overvoltage of ~0.3 V at a current density of ±0.1 mA/cm<sup>2</sup>. At 25 °C, the LiFePO<sub>4</sub>|Nafion-212-EC-PC|Li battery exhibits a capacity of 141, 136, 125, and 100 mAh/g at 0.1, 0.2, 0.5, and 1C rates, respectively. It maintains a capacity of 120 mAh/g at 0 °C and 0.1C with stable performance for 50 charge/discharge cycles. The mechanism of conductivity and capacity retention at low temperatures is discussed. |
| first_indexed | 2024-03-09T16:30:05Z |
| format | Article |
| id | doaj.art-1e555c7f69044d8bb737fd6bd4b6fee0 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T16:30:05Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-1e555c7f69044d8bb737fd6bd4b6fee02023-11-24T15:02:15ZengMDPI AGPolymers2073-43602023-11-011522434010.3390/polym15224340Nafion-212 Membrane Solvated by Ethylene and Propylene Carbonates as Electrolyte for Lithium Metal BatteriesDaria Voropaeva0Svetlana Novikova1Irina Stenina2Andrey Yaroslavtsev3Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, Leninsky Avenue, 31, 119991 Moscow, RussiaKurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, Leninsky Avenue, 31, 119991 Moscow, RussiaKurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, Leninsky Avenue, 31, 119991 Moscow, RussiaKurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, Leninsky Avenue, 31, 119991 Moscow, RussiaThe use of cation-exchange membranes as electrolytes for lithium metal batteries can prevent the formation of lithium dendrites during extended cycling and guarantee safe battery operation. In our study, the Nafion-212 membrane in lithium form solvated by a mixture of ethylene carbonate and propylene carbonate (EC-PC) was used as an electrolyte in a lithium metal battery with the LiFePO<sub>4</sub> cathode. The Nafion-212-EC-PC electrolyte is electrochemically stable up to 6 V, indicating its suitability for high-energy density batteries. It has an ionic conductivity of 1.9 × 10<sup>−4</sup> S/cm at 25 °C and a high lithium transference number. The symmetric Li|Nafion-212-EC-PC|Li cell shows a very low overvoltage of ~0.3 V at a current density of ±0.1 mA/cm<sup>2</sup>. At 25 °C, the LiFePO<sub>4</sub>|Nafion-212-EC-PC|Li battery exhibits a capacity of 141, 136, 125, and 100 mAh/g at 0.1, 0.2, 0.5, and 1C rates, respectively. It maintains a capacity of 120 mAh/g at 0 °C and 0.1C with stable performance for 50 charge/discharge cycles. The mechanism of conductivity and capacity retention at low temperatures is discussed.https://www.mdpi.com/2073-4360/15/22/4340polymer electrolytecation-exchange membranelithium metal batteryNafionionic conductivitysingle-ion conductor |
| spellingShingle | Daria Voropaeva Svetlana Novikova Irina Stenina Andrey Yaroslavtsev Nafion-212 Membrane Solvated by Ethylene and Propylene Carbonates as Electrolyte for Lithium Metal Batteries Polymers polymer electrolyte cation-exchange membrane lithium metal battery Nafion ionic conductivity single-ion conductor |
| title | Nafion-212 Membrane Solvated by Ethylene and Propylene Carbonates as Electrolyte for Lithium Metal Batteries |
| title_full | Nafion-212 Membrane Solvated by Ethylene and Propylene Carbonates as Electrolyte for Lithium Metal Batteries |
| title_fullStr | Nafion-212 Membrane Solvated by Ethylene and Propylene Carbonates as Electrolyte for Lithium Metal Batteries |
| title_full_unstemmed | Nafion-212 Membrane Solvated by Ethylene and Propylene Carbonates as Electrolyte for Lithium Metal Batteries |
| title_short | Nafion-212 Membrane Solvated by Ethylene and Propylene Carbonates as Electrolyte for Lithium Metal Batteries |
| title_sort | nafion 212 membrane solvated by ethylene and propylene carbonates as electrolyte for lithium metal batteries |
| topic | polymer electrolyte cation-exchange membrane lithium metal battery Nafion ionic conductivity single-ion conductor |
| url | https://www.mdpi.com/2073-4360/15/22/4340 |
| work_keys_str_mv | AT dariavoropaeva nafion212membranesolvatedbyethyleneandpropylenecarbonatesaselectrolyteforlithiummetalbatteries AT svetlananovikova nafion212membranesolvatedbyethyleneandpropylenecarbonatesaselectrolyteforlithiummetalbatteries AT irinastenina nafion212membranesolvatedbyethyleneandpropylenecarbonatesaselectrolyteforlithiummetalbatteries AT andreyyaroslavtsev nafion212membranesolvatedbyethyleneandpropylenecarbonatesaselectrolyteforlithiummetalbatteries |