4.8 Article

New Two-Dimensional Niobium and Vanadium Carbides as Promising Materials for Li-Ion Batteries

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 43, Pages 15966-15969

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja405735d

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Funding

  1. Office of Vehicle Technologies of the U.S. Department of Energy under the Batteries for Advanced Transportation Technologies (BATT) Program [DE-AC02-05CH11231, 6951370]
  2. Knut and Alice Wallenberg Foundation

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New two-dimensional niobium and vanadium carbides have been synthesized by selective etching, at room temperature, of Al from Nb2AlC and V2AlC, respectively. These new matrials are promising electrode materials for Li-ion batteries, demonstrating good capability to handle high charge-discharge rates. Reversible capacities of 170 and 260 mA.h.g(-1) at 1 C, and 110 and 125 mA.h.g(-1) at 10 C were obtained for Nb2C and V2C-based electrodes, respectively.

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