4.7 Article

P2-type Na2/3Ni1/3Mn2/3-xTixO2 as a new positive electrode for higher energy Na-ion batteries

Journal

CHEMICAL COMMUNICATIONS
Volume 50, Issue 28, Pages 3677-3680

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cc49856e

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Funding

  1. JSPS
  2. MEXT program Elements Strategy Initiative
  3. MEXT
  4. Ministry of Education Culture, Sports, Science and Technology, Japan

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New electrode materials of layered oxides, Na2/3Ni1/3Mn2/3-xTixO2 (0 <= x <= 2/3), are successfully synthesized, and their electrochemical performance is examined in aprotic Na cells. A Na//Na2/3Ni1/3Mn1/2Ti1/6O2 cell delivers 127 mA h g(-1) of reversible capacity and the average voltage reaches 3.7 V at first discharge with good capacity retention.

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