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Excellent Performance of Few-Layer Borocarbonitrides as Anode Materials in Lithium-Ion Batteries

Sen, Sudeshna and Moses, Kota and Bhattacharyya, Aninda J and Rao, CNR (2014) Excellent Performance of Few-Layer Borocarbonitrides as Anode Materials in Lithium-Ion Batteries. In: CHEMISTRY-AN ASIAN JOURNAL, 9 (1). pp. 100-103.

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Official URL: http://dx.doi.org/10.1002/asia.201301037


Borocarbonitrides (BxCyNz) with a graphene-like structure exhibit a remarkable high lithium cyclability and current rate capability. The electrochemical performance of the BxCyNz materials, synthesized by using a simple solid-state synthesis route based on urea, was strongly dependent on the composition and surface area. Among the three compositions studied, the carbon-rich compound B0.15C0.73N0.12 with the highest surface area showed an exceptional stability (over 100cycles) and rate capability over widely varying current density values (0.05-1Ag(-1)). B0.15C0.73N0.12 has a very high specific capacity of 710mAhg(-1) at 0.05Ag(-1). With the inclusion of a suitable additive in the electrolyte, the specific capacity improved drastically, recording an impressive value of nearly 900mAhg(-1) at 0.05Ag(-1). It is believed that the solid-electrolyte interphase (SEI) layer at the interface of BxCyNz and electrolyte also plays a crucial role in the performance of the BxCyNz .

Item Type: Journal Article
Additional Information: copyright for this article belongs to WILEY-V C H VERLAG GMBH,GERMANY
Keywords: borocarbonitrides; doping; graphene; layered compounds; lithium-ion batteries
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 20 Jan 2014 08:25
Last Modified: 20 Jan 2014 08:25
URI: http://eprints.iisc.ac.in/id/eprint/48197

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