Journal ArticleDOI
High Electrochemical Performances of Microsphere C-TiO2 Anode for Sodium-Ion Battery
Seung-Min Oh,Jang Yeon Hwang,Chong Seung Yoon,Jun Lu,Khalil Amine,Illias Belharouak,Illias Belharouak,Yang-Kook Sun +7 more
TLDR
High-power, long-life carbon-coated TiO2 microsphere electrodes were synthesized by a hydrothermal method for sodium ion batteries, and the electrochemical properties were evaluated as a function of carbon content.Abstract:
High-power, long-life carbon-coated TiO2 microsphere electrodes were synthesized by a hydrothermal method for sodium ion batteries, and the electrochemical properties were evaluated as a function of carbon content. The carbon coating, introduced by sucrose addition, had an effect of suppressing the growth of the TiO2 primary crystallites during calcination. The carbon coated TiO2 (sucrose 20 wt % coated) electrode exhibited excellent cycle retention during 50 cycles (100%) and superior rate capability up to a 30 C rate at room temperature. This cell delivered a high discharge capacity of 155 mAh g(composite)(-1) at 0.1 C, 149 mAh g(composite)(-1) at 1 C, and 82.7 mAh g(composite)(-1) at a 10 C rate, respectively.read more
Citations
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Journal ArticleDOI
Sodium-ion batteries: present and future
TL;DR: Current research on materials is summarized and discussed and future directions for SIBs are proposed to provide important insights into scientific and practical issues in the development of S IBs.
Journal ArticleDOI
Pseudocapacitance of MXene nanosheets for high-power sodium-ion hybrid capacitors
Xianfen Wang,Satoshi Kajiyama,Hiroki Iinuma,Eiji Hosono,Shinji Oro,Isamu Moriguchi,Masashi Okubo,Atsuo Yamada,Atsuo Yamada +8 more
TL;DR: The present work demonstrates that the pseudocapacitance of the nanosheet compound MXene Ti2C achieves a higher specific capacity relative to double-layer capacitor electrodes and a higher rate capability relative to ion intercalation electrodes.
Journal ArticleDOI
Recent Progress in Electrode Materials for Sodium-Ion Batteries
Hyungsub Kim,Haegyeom Kim,Haegyeom Kim,Zhang Ding,Zhang Ding,Myeong Hwan Lee,Kyungmi Lim,Gabin Yoon,Kisuk Kang +8 more
TL;DR: In this paper, a review of recent progress on electrode materials for NIBs, including the discovery of new electrode materials and their Na storage mechanisms, is briefly reviewed, and efforts to enhance the electrochemical properties of NIB electrode materials as well as the challenges and perspectives involving these materials are discussed.
Journal ArticleDOI
Self-Supported Nanotube Arrays of Sulfur-Doped TiO2 Enabling Ultrastable and Robust Sodium Storage.
TL;DR: Self-supported nanotube arrays of sulfur-doped TiO2 on metal substrates are fabricated using electrochemical anodization and subsequent sulfidation to serve as an efficient anode for sodium storage and robust rate capability, remarkably outperforming any other reportedTiO2 -based electrodes.
Journal ArticleDOI
Recent advances in titanium-based electrode materials for stationary sodium-ion batteries
TL;DR: In this paper, a new concept of symmetric Na-ion cells employing layered Na/Ti-containing oxides as bipolar electrodes is proposed and realized, based on the bi-functional roles of titanium.
References
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Journal ArticleDOI
High Capacity Anode Materials for Rechargeable Sodium‐Ion Batteries
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TL;DR: In this article, the authors compare the results with those for lithium insertion in graphitic carbon anode materials and demonstrate the presence of similar alkali metal insertion mechanisms in both cases.
Journal ArticleDOI
The Mechanisms of Lithium and Sodium Insertion in Carbon Materials
David Stevens,J. R. Dahn +1 more
TL;DR: In this article, the authors compare the interactions of lithium and sodium with a range of carbon materials in electrochemical cells and demonstrate that both lithium and Sodium can be inserted into the interlayer space in disordered carbon materials.
Journal ArticleDOI
Reducing Carbon in LiFePO4 / C Composite Electrodes to Maximize Specific Energy, Volumetric Energy, and Tap Density
Zhaohui Chen,J. R. Dahn +1 more
TL;DR: In this paper, three carbon-coated samples, one after the synthesis of pure LiFePO 4, one synthesized with sugar added before the heating steps, and one synthesised with sugar adding before heating and subsequently coated with carbon, were studied.