An Aqueous Symmetric Sodium-Ion Battery with NASICON-Structured Na3MnTi(PO4)3

Hongcai Gao; John B. Goodenough

doi:10.1002/anie.201606508

An Aqueous Symmetric Sodium-Ion Battery with NASICON-Structured Na₃MnTi(PO₄)₃

Hongcai Gao, John B. Goodenough^*

^*Corresponding author for this work

University of Texas at Austin

Research output: Contribution to journal › Article › peer-review

270 Citations (Scopus)

Abstract

A symmetric sodium-ion battery with an aqueous electrolyte is demonstrated; it utilizes the NASICON-structured Na₃MnTi(PO₄)₃as both the anode and the cathode. The NASICON-structured Na₃MnTi(PO₄)₃possesses two electrochemically active transition metals with the redox couples of Ti⁴⁺/Ti³⁺and Mn³⁺/Mn²⁺working on the anode and cathode sides, respectively. The symmetric cell based on this bipolar electrode material exhibits a well-defined voltage plateau centered at about 1.4 V in an aqueous electrolyte with a stable cycle performance and superior rate capability. The advent of aqueous symmetric sodium-ion battery with high safety and low cost may provide a solution for large-scale stationary energy storage.

Original language	English
Pages (from-to)	12768-12772
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	41
DOIs	https://doi.org/10.1002/anie.201606508
Publication status	Published - 4 Oct 2016
Externally published	Yes

Keywords

aqueous electrolyte
energy storage
sodium-ion battery
symmetric battery

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abstract = "A symmetric sodium-ion battery with an aqueous electrolyte is demonstrated; it utilizes the NASICON-structured Na3MnTi(PO4)3as both the anode and the cathode. The NASICON-structured Na3MnTi(PO4)3possesses two electrochemically active transition metals with the redox couples of Ti4+/Ti3+and Mn3+/Mn2+working on the anode and cathode sides, respectively. The symmetric cell based on this bipolar electrode material exhibits a well-defined voltage plateau centered at about 1.4 V in an aqueous electrolyte with a stable cycle performance and superior rate capability. The advent of aqueous symmetric sodium-ion battery with high safety and low cost may provide a solution for large-scale stationary energy storage.",

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AB - A symmetric sodium-ion battery with an aqueous electrolyte is demonstrated; it utilizes the NASICON-structured Na3MnTi(PO4)3as both the anode and the cathode. The NASICON-structured Na3MnTi(PO4)3possesses two electrochemically active transition metals with the redox couples of Ti4+/Ti3+and Mn3+/Mn2+working on the anode and cathode sides, respectively. The symmetric cell based on this bipolar electrode material exhibits a well-defined voltage plateau centered at about 1.4 V in an aqueous electrolyte with a stable cycle performance and superior rate capability. The advent of aqueous symmetric sodium-ion battery with high safety and low cost may provide a solution for large-scale stationary energy storage.

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An Aqueous Symmetric Sodium-Ion Battery with NASICON-Structured Na₃MnTi(PO₄)₃

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