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Issue 28, 2018
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High-rate potassium ion and sodium ion batteries by co-intercalation anodes and open framework cathodes

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Abstract

Here we demonstrate a full-cell battery design that bridges the energy density and rate capability between that of supercapacitors or pseudocapacitors with that of traditional lithium-ion batteries. This is accomplished by pairing an anode that enables ultrafast ion co-intercalation, an open framework cathode that allows rapid ion diffusion, and linear ether based electrolyte that sustains cell-level stability and high rate performance. We show this platform to be suitable for both sodium and potassium batteries using graphite as the co-intercalation anode, and Prussian blue as the open framework cathode. Our devices exhibit active material energy densities >100 W h kg−1 with power density >1000 W kg−1 with cycling durability approaching ∼80% energy density retention over 2000 cycles. This work brings together state-of-the-art concepts for fast-charging batteries into a full-cell configuration.

Graphical abstract: High-rate potassium ion and sodium ion batteries by co-intercalation anodes and open framework cathodes

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Publication details

The article was received on 27 Feb 2018, accepted on 26 Jun 2018 and first published on 27 Jun 2018


Article type: Communication
DOI: 10.1039/C8NR01685B
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Nanoscale, 2018,10, 13335-13342

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    High-rate potassium ion and sodium ion batteries by co-intercalation anodes and open framework cathodes

    K. Moyer, J. Donohue, N. Ramanna, A. P. Cohn, N. Muralidharan, J. Eaves and C. L. Pint, Nanoscale, 2018, 10, 13335
    DOI: 10.1039/C8NR01685B

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