Iron oxyfluorides as lithium-free cathode materials for solid-state Li metal batteries
High energy density storage systems can be achieved by utilizing a lithium metal anode in solid-state Li secondary batteries. Herein, we report for the first time the use of a lithium-free cathode coupled with lithium metal for solid-state Li metal batteries. This lithium-free cathode composed of ir...
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Published in | Journal of materials chemistry. A, Materials for energy and sustainability Vol. 5; no. 35; pp. 18464 - 18468 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
2017
|
Online Access | Get full text |
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Summary: | High energy density storage systems can be achieved by utilizing a lithium metal anode in solid-state Li secondary batteries. Herein, we report for the first time the use of a lithium-free cathode coupled with lithium metal for solid-state Li metal batteries. This lithium-free cathode composed of iron oxyfluoride (FeOF) nanorods can not only reduce the consumption of lithium resources, but also provide a good electrochemical performance. After being encapsulated by a highly conductive poly(3,4-ethylenedioxythiophene) (PEDOT) nanolayer, the coated FeOF nanorods exhibit a superior cycling stability (
ca.
75% capacity retention after 200 cycles at 100 mA g
−1
) at 60 °C in a PEA solid electrolyte. This performance demonstrates the great potential of lithium-free cathodes for application in solid-state Li metal batteries. |
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ISSN: | 2050-7488 2050-7496 |
DOI: | 10.1039/C7TA05138G |