TY - JOUR
T1 - Sodium iron pyrophosphate
T2 - A novel 3.0 v iron-based cathode for sodium-ion batteries
AU - Barpanda, Prabeer
AU - Ye, Tian
AU - Nishimura, Shin Ichi
AU - Chung, Sai Cheong
AU - Yamada, Yuki
AU - Okubo, Masashi
AU - Zhou, Haoshen
AU - Yamada, Atsuo
N1 - Funding Information:
The current research is financially supported by the Mitsubishi Motor Company . A part of this work was performed under a management of ‘Element Strategy Initiative for Catalysts & Batteries’ (ESICB) by the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT). PB is grateful to the Japan Society for the Promotion of Sciences for a JSPS Fellowship and TY is grateful to Panasonic Inc. for a ‘Panasonic Scholarship’ at the University of Tokyo. The crystal structure was drawn using the VESTA software [22] .
PY - 2012/10
Y1 - 2012/10
N2 - Extending the pyrophosphate chemistry for rechargeable Na-ion batteries, here we report the synthesis and electrochemical characterization of Na 2FeP 2O 7, a novel Fe-based cathode material for sodium batteries. Prepared by conventional solid-state as well as solution-combustion synthesis (at 600 °C), the Na 2FeP 2O 7 adopts a triclinic structure (space group: P-1) with three-dimensional channels running along [100], [- 110] and [01-1] directions. With no further optimization, the as-synthesized Na 2FeP 2O 7 cathode was found to be electrochemically active, delivering a reversible capacity of 82 mAh·g - 1 with the Fe 3 +/Fe 2 + redox potential centered around 3 V (vs. Na/Na +). With its theoretical capacity of ~ 100 mAh·g - 1 and potential high rate-capability, Na 2FeP 2O 7 forms a promising novel cathode material, with the distinction of being the first ever pyrophosphate-class of cathode for sodium-ion batteries.
AB - Extending the pyrophosphate chemistry for rechargeable Na-ion batteries, here we report the synthesis and electrochemical characterization of Na 2FeP 2O 7, a novel Fe-based cathode material for sodium batteries. Prepared by conventional solid-state as well as solution-combustion synthesis (at 600 °C), the Na 2FeP 2O 7 adopts a triclinic structure (space group: P-1) with three-dimensional channels running along [100], [- 110] and [01-1] directions. With no further optimization, the as-synthesized Na 2FeP 2O 7 cathode was found to be electrochemically active, delivering a reversible capacity of 82 mAh·g - 1 with the Fe 3 +/Fe 2 + redox potential centered around 3 V (vs. Na/Na +). With its theoretical capacity of ~ 100 mAh·g - 1 and potential high rate-capability, Na 2FeP 2O 7 forms a promising novel cathode material, with the distinction of being the first ever pyrophosphate-class of cathode for sodium-ion batteries.
KW - Cathode
KW - Na FeP O
KW - Na-ion batteries
KW - Pyrophosphate
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U2 - 10.1016/j.elecom.2012.08.028
DO - 10.1016/j.elecom.2012.08.028
M3 - Article
AN - SCOPUS:84866653380
SN - 1388-2481
VL - 24
SP - 116
EP - 119
JO - Electrochemistry Communications
JF - Electrochemistry Communications
IS - 1
ER -