| Autor: |
Jui‐Yu Pai, Hao‐Yu Ku, Chun‐Cheng Lin, Chien‐Wei Chiang, Laurence J. Hardwick, Chi‐Chang Hu |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Electrochemical Science Advances, Vol 2, Iss 5, Pp n/a-n/a (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2698-5977 |
| DOI: |
10.1002/elsa.202100091 |
| Popis: |
Abstract Electrospun polyimide (PI) separators were found to reduce the charge‐transfer resistance of Li plating/stripping and the overpotentials of Li nucleation/growth onto Cu foils in the 1.2 M LiPF6/(ethylene carbonate/dimethyl carbonate = 1/1) electrolyte without any additives in comparison with polyethylene (PE) separators. Lithium deposition through the PI separator led to the formation of a granular morphology of 15–30 µm in diameter compared to lithium dendrites using PE. A similar trend of lithium deposition was observed in LiFePO4//Cu cells. The PI separator was found to enhance the discharge capacity and cycle life of Li plating/stripping in the Li//Cu and LiFePO4//Cu cells containing 40 µl electrolytes, verifying that the PI separator provides dendrite inhibition capability for the lithium‐metal‐free cells. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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