Journal
RSC ADVANCES
Volume 4, Issue 48, Pages 25369-25373Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra03473b
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Funding
- National Natural Science Foundation of China [21333002, 20925312]
- Shanghai Science & Technology Committee [13JC1407900]
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A polyimide synthesized from 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTCDA) and ethylene diamine (EDA) was evaluated as a new anode material for sodium ion batteries (SIB). The polyimide delivers a discharge specific capacity of 140 mA h g(-1) at an average potential of 2 V vs. Na+/Na with an initial coulombic efficiency of 97.6% and exhibits an excellent cycleability with a capacity retention of 90% over 500 cycles. A full SIB with polyimide anode and Na3V2(PO4)(3)/C cathode and Na4Fe(CN)(6)/C cathode was proposed.
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