| Autor: |
Gerald Singer, Cheng‐Tien Hsieh, Tianwei Jin, Seung Hoon Lee, Yuan Yang |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
EcoMat, Vol 5, Iss 12, Pp n/a-n/a (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2567-3173 |
| DOI: |
10.1002/eom2.12418 |
| Popis: |
Abstract Structural batteries are attractive for weight reduction in electric transportation. For their practical applications excellent mechanical properties and electrochemical performance are required simultaneously, which remains a grand challenge. In this study, we present a new scalable and low‐cost design, which uses a quasi‐solid polymer electrolyte (QSPE) to achieve both remarkably improved flexural properties and attractive energy density. The QSPE has a high ionic conductivity of 1.2 mS cm−1 and retains 91% capacity over 500 cycles in graphite/NMC532 cells. Moreover, the resulting structural batteries achieved a modulus of 21.7 GPa and a specific energy of 127 Wh kg−1 based on the total cell weight, which to our knowledge is the highest reported value above 15 GPa. We further demonstrate the application of such structural batteries in a model electric car. The presented design concept enables the industrialization of structural batteries in electric transportation and further applications to improve energy efficiency and multifunctionality. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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