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- W4311599347 abstract "Abstract It is fundamentally challenging for cathode materials to achieve long life, high capacity, and fast kinetics in rechargeable aluminum batteries, due to the strong electrostatic interaction between Al 3+ and the host materials. Herein, the redox‐active dihydrophenazine (Pz) is coupled with pyrene (Py) or biphenyl (Ph) to develop two conjugated microporous polymers of PyPz and PhPz as AlCl 4 − ‐hosting cathodes for aluminum dual‐ion batteries (ADIBs). It is revealed that the planar Py unit endows PyPz with an extended conjugated skeleton and a higher surface area than PhPz produced from the Ph unit with a twisted structure, thus leading to a higher redox activity for PyPz. Hence, the PyPz cathode delivers a much higher capacity of 231 mAh g −1 than PhPz (137 mAh g −1 ). Its porous structure and insolubility also ensure PyPz shows a superior rate performance and exceptional cyclability over 100 000 cycles. Meanwhile, the feature of fast kinetics for AlCl 4 − storage also allows PyPz to operate well at not only a low temperature (−30 °C) but also a high areal capacity of 2.53 mAh cm −2 . These findings suggest that redox‐active conjugated polymers are promising advanced organic cathodes for sustainable ADIBs, where the electrochemical performance can be significantly enhanced by rational structural design." @default.
- W4311599347 created "2022-12-27" @default.
- W4311599347 creator A5006846995 @default.
- W4311599347 creator A5010446607 @default.
- W4311599347 creator A5038871313 @default.
- W4311599347 creator A5047835985 @default.
- W4311599347 creator A5052676364 @default.
- W4311599347 creator A5069244033 @default.
- W4311599347 creator A5069795604 @default.
- W4311599347 creator A5071720791 @default.
- W4311599347 creator A5076568467 @default.
- W4311599347 date "2022-12-05" @default.
- W4311599347 modified "2023-10-15" @default.
- W4311599347 title "Dihydrophenazine‐Based Conjugated Microporous Polymer Cathodes with Enhanced Electronic and Ionic Conductivities for High‐Performance Aluminum Dual‐Ion Batteries" @default.
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