High capacity silicon anodes enabled by MXene viscous aqueous ink
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2019Access:
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Zhang C.J, Park S.-H, Seral?? Ascaso A, Barwich S, McEvoy N, Boland C.S, Coleman J.N, Gogotsi Y, Nicolosi V, High capacity silicon anodes enabled by MXene viscous aqueous ink, Nature Communications, 10, 1, 2019Download Item:
Abstract:
The ever-increasing demands for advanced lithium-ion batteries have greatly stimulated thequest for robust electrodes with a high areal capacity. Producing thick electrodes from a high-performance active material would maximize this parameter. However, above a criticalthickness, solution-processedfilms typically encounter electrical/mechanical problems,limiting the achievable areal capacity and rate performance as a result. Herein, we show thattwo-dimensional titanium carbide or carbonitride nanosheets, known as MXenes, can be usedas a conductive binder for silicon electrodes produced by a simple and scalable slurry-castingtechnique without the need of any other additives. The nanosheets form a continuousmetallic network, enable fast charge transport and provide good mechanical reinforcementfor the thick electrode (up to 450μm). Consequently, very high areal capacity anodes (up to23.3 mAh cm−2) have been demonstrated
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http://people.tcd.ie/colemajhttp://people.tcd.ie/mcevoyni
http://people.tcd.ie/nicolov
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Nature Communications10
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lithium-ion batteriesDOI:
http://dx.doi.org/10.1038/s41467-019-08383-yMetadata
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