Electrochemical and structural investigation of NaCrO2 as a positive electrode for sodium secondary battery using inorganic ionic liquid NaFSA–KFSA

Chen, Chih-Yao; Matsumoto, Kazuhiko; Hagiwara, Rika; Fukunaga, Atsushi; Sakai, Shoichiro; Nitta, Koji; Inazawa, Shinji

doi:10.1016/j.jpowsour.2013.03.006

Cited by 99 publications

(94 citation statements)

References 51 publications

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Section: O3-type Tmosmentioning

confidence: 99%

“…[69][70][71] When the ionic liquid electrolyte NaFSA-KFSA (FSA represents the anion bis(fl uorosulfonyl)amide) was adopted as a thermally stable electrolyte, the NaCrO 2 electrode exhibited a stable discharge capacity of 113 mA h g −1 at a current density of 125 mA h g −1 and 90 °C with a 98.5% capacity retention. [ 69 ] A recent report by Yu et al showed that carbon-coated NaCrO 2 exhibits excellent capacity retention over 50 cycles with a reversible capacity of 120 mA h g −1 at a current density of 20 mA g −1 . [ 72 ] In addition, the high rate capability was confi rmed for the electrode, in which approximately 99 mA h g −1 of the discharge capacity was delivered at 150 C. These authors claimed that the surfaceconducting carbon layer not only promoted the electrochemical performance but also enhanced the structural integrity in the thermal environment.…”

Section: O3-type Tmosmentioning

confidence: 99%

“…[ 218,219 ] Later, Chen et al reported Na 3 Mn(CO 3 )(PO 4 ) as a new 3.7-V-class intercalation cathode material for NIBs, delivering a high discharge capacity (≈125 mA h g −1 ) and specifi c energy (374 Wh kg −1 ). [ 69 ] They revealed that the electrode adopts a single-phase reaction upon Na de/intercalation, and more than one Na per Mn atom can be deintercalated from the structure, indicating a two-electron intercalation reaction with Mn 2+ /Mn 3+ with an average voltage of 2.7 V. Although Fe-and Mn-based carbonophosphate electrodes exhibit promising electrochemical activities in Na-ion cells, the slow Na kinetics in Na 3 Mn(CO 3 ) (PO 4 ) and low energy density still hinder their application.…”

Section: Mixed Polyanionic Compoundsmentioning

confidence: 99%

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Recent Progress in Electrode Materials for Sodium‐Ion Batteries

Kim

Zhang

et al. 2016

Advanced Energy Materials

871

595

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Grid‐scale energy storage systems (ESSs) that can connect to sustainable energy resources have received great attention in an effort to satisfy ever‐growing energy demands. Although recent advances in Li‐ion battery (LIB) technology have increased the energy density to a level applicable to grid‐scale ESSs, the high cost of Li and transition metals have led to a search for lower‐cost battery system alternatives. Based on the abundance and accessibility of Na and its similar electrochemistry to the well‐established LIB technology, Na‐ion batteries (NIBs) have attracted significant attention as an ideal candidate for grid‐scale ESSs. Since research on NIB chemistry resurged in 2010, various positive and negative electrode materials have been synthesized and evaluated for NIBs. Nonetheless, studies on NIB chemistry are still in their infancy compared with LIB technology, and further improvements are required in terms of energy, power density, and electrochemical stability for commercialization. Most recent progress on electrode materials for NIBs, including the discovery of new electrode materials and their Na storage mechanisms, is briefly reviewed. In addition, efforts to enhance the electrochemical properties of NIB electrode materials as well as the challenges and perspectives involving these materials are discussed.

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Section: O3-type Tmosmentioning

confidence: 99%

Section: O3-type Tmosmentioning

confidence: 99%

Section: Mixed Polyanionic Compoundsmentioning

confidence: 99%

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Recent Progress in Electrode Materials for Sodium‐Ion Batteries

Kim

Zhang

et al. 2016

Advanced Energy Materials

871

595

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“…Recently, NIBs with ionic liquid can be operated at room temperature 100 and Sumitomo Electric Industries Ltd. has studied to realize practical NIBs with ionic liquid. Although the NIBs exhibit sufficient cycle stability 101 and are relatively safe, cost reduction of ionic liquid, increase in energy density, and further safety tests are required for practical use. LIBs with ionic liquid have been also studied broadly, therefore, we have to carefully consider merits and demerits of ionic liquids for the LIBs and NIB for practical applications.…”

Section: Electrolyte Salts Solvents Additives and Bindersmentioning

confidence: 99%

Review—Practical Issues and Future Perspective for Na-Ion Batteries

Kubota

Komaba

2015

J. Electrochem. Soc.

635

563

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Research on electrochemical Na intercalation in battery system has been reported since the early 1980s but Na-ion batteries are not commercialized so far though studies on Li-ion batteries have been reported since the late 1970s and the practical batteries have been extensively utilized for portable device applications in the world since 1991. Now, targeted application of research and development for rechargeable batteries has changed toward realization of the sustainable energy society. With the change in social situation and development of the battery technology, studies on Na-ion batteries have been attracted significant interests since 2010. Although research interests of the electrode materials for Na-ion batteries are evoked in many researchers, advantages, disadvantages, and issues are not fully discussed for realizing the commercialization of Na-ion batteries. In this article, practical issues and perspective are reviewed on the basis of mainly our experimental experiences, know-how, and results, and the future direction is proposed to overcome the issues and to challenge the advanced performance. Power storage technology has been dramatically developed since rechargeable lithium battery (LIB), which are often called a Li-ion battery as named by Sony Corp., was commercialized in 1991 and delivered great impact on economy with tapping into new markets. A high-energy powerful LIB for portable electronic devices such as lap top computers and mobile phones is one of the best examples, and indeed they become essential tools for our life. Thanks for the great research achievement, the price of the battery pack has been declining for more than 20 years, and LIBs are now able to be installed in power system for hybrid electric vehicles (HEV) and battery electric vehicles (BEV) with relatively affordable price. Continuous effort has been devoted on the development of LIBs toward higher-power/higherenergy performance, and they now become promising candidates for being a part of grid-scale energy storage incorporated with wind and solar power systems. When it comes to large-scale power system more than that for electric vehicles, the priority in research is shifted to production cost from performance and thus minor-metal free or low-cost materials that can be derived from more abundant resources have become increasingly desirable. Although LiMn 2 O 4 , LiFePO 4 , and LiNi x Mn y Co z O 2, which are utilized in HEV and BEV instead of costly LiCoO 2, are recognized as low cost materials, 1,2 lithium in the Earth's crust is unevenly distributed as minor-metal and consequently affecting to dependence on import of lithium resource and additionally to product costs. In contrast to lithium, sodium is unlimited in the Earth's crust and sea, and is one of the most abundant elements in the Earth's crust. Since the alternative to lithium is more desirable for realizing largescale power source and sodium is the second lightest alkali next to lithium, Na-ion batteries (NIBs) have attracted much attention as feasible technology ...

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“…These potential plateaus correspond to the phase transitions of Na 1¹x CrO 2 (0¯x¯0.5): rhombohedral O3, monoclinic O'3 and monoclinic P'3 structures. 17,18 Figure 1b shows the differential capacity (dQ/dV) versus voltage plots at 0, 25, 50 and 90°C. The dQ/dV curves also clearly show the phase transitions during charge-discharge process.…”

Section: Resultsmentioning

confidence: 99%

Charge-discharge Performance of an Ionic Liquid-based Sodium Secondary Battery in a Wide Temperature Range

2015

Self Cite

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A sodium secondary battery has been constructed by using a nonvolatile and nonflammable Na[FSA]-[C 3 C 1 pyrr][FSA] (FSA = bis(fluorosulfonyl)amide, C 3 C 1 pyrr = N-methyl-N-propylpyrrolidinium) ionic liquid, a NaCrO 2 positive electrode and a Na metal negative electrode. The charge-discharge performance is evaluated over a wide temperature range of −20-90°C. It has been demonstrated that the sodium secondary battery has long cycle lives both at a high temperature of 90°C and at a low temperature of 0°C. Thus, the ionic liquid-based sodium secondary battery is expected to be a viable alternative to lithium ion battery for many applications.

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Electrochemical and structural investigation of NaCrO2 as a positive electrode for sodium secondary battery using inorganic ionic liquid NaFSA–KFSA

Cited by 99 publications

References 51 publications

Recent Progress in Electrode Materials for Sodium‐Ion Batteries

Recent Progress in Electrode Materials for Sodium‐Ion Batteries

Review—Practical Issues and Future Perspective for Na-Ion Batteries

Charge-discharge Performance of an Ionic Liquid-based Sodium Secondary Battery in a Wide Temperature Range

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