4.7 Article

Understanding Na2Ti3O7 as an ultra-low voltage anode material for a Na-ion battery

Journal

CHEMICAL COMMUNICATIONS
Volume 50, Issue 83, Pages 12564-12567

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cc03973d

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Funding

  1. National Science Foundation under CAREER Award [1057170]
  2. USDOE [DE-AC02-06CH11357]
  3. Division Of Materials Research
  4. Direct For Mathematical & Physical Scien [1057170] Funding Source: National Science Foundation

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An in-depth understanding of Na2Ti3O7 as a Na-ion battery anode is reported. The battery performance is enhanced by carbon coating, due to increased electronic conductivity and reduced solid electrolyte interphase formation. Ti4+ reduction upon discharge is demonstrated using in situ XAS. The self-relaxation behaviour of the fully intercalated phase is revealed.

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