A Universal Organic Cathode for Ultrafast Lithium and Multivalent Metal Batteries
- Department of Chemical and Biomolecular Engineering University of Maryland College Park MD 20742 USA
- Electrochemistry Branch Sensor and Electron Devices Directorate Power and Energy Division U.S. Army Research Laboratory Adelphi MD 20783 USA
- Department of Chemistry and Biochemistry University of Maryland College Park MD 20742 USA
Abstract Low‐cost multivalent battery chemistries (Mg 2+ , Al 3+ ) have been extensively investigated for large‐scale energy storage applications. However, their commercialization is plagued by the poor power density and cycle life of cathodes. A universal polyimides@CNT (PI@CNT) cathode is now presented that can reversibly store various cations with different valences (Li + , Mg 2+ , Al 3+ ) at an extremely fast rate. The ion‐coordination charge storage mechanism of PI@CNT is systemically investigated. Full cells using PI@CNT cathodes and corresponding metal anodes exhibit long cycle life (>10000 cycles), fast kinetics (>20 C), and wide operating temperature range (−40 to 50 °C), making the low‐cost industrial polyimides universal cathodes for different multivalent metal batteries. The stable ion‐coordinated mechanism opens a new foundation for the development of high‐energy and high‐power multivalent batteries.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1437193
- Journal Information:
- Angewandte Chemie, Journal Name: Angewandte Chemie Vol. 130 Journal Issue: 24; ISSN 0044-8249
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- Germany
- Language:
- English
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