Synthesis, structure, and electrochemical Li-ion intercalation properties of Li2Ti3O7 with Na2Ti3O7-type layered structure

Chiba, Kazuki; Kijima, Norihito; Takahashi, Yasuhiko; Idemoto, Yasushi; Akimoto, Junji

doi:10.1016/j.ssi.2007.11.004

Cited by 77 publications

(77 citation statements)

References 15 publications

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“…However, the lack of substantial cycling data makes it impossible to determine the durability of the monoclinic structure during repeated charge/discharge process. 149 …”

Section: Ion Doping Of LI 4 Ti 5 O 12 Materials For Enhancement In Ramentioning

confidence: 99%

Ti-based compounds as anode materials for Li-ion batteries

Zhu

Wang

Xia

2012

Energy Environ. Sci.

799

541

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Li-ion batteries are one of the most promising electrochemical power sources to be widely used in portable electronics, electric vehicles, and stationary energy storage systems. Ti-based materials have been intensively investigated as important anodes for Li-ion batteries due to their high safety and excellent cycling stability. The present work reviews the latest advances in the exploration and development of Ti-based compounds, such as O 7 , as high performance anode materials for Li-ion batteries. The relationship between the preparation, composition, structure, morphology and electrochemical performance are summarized and analyzed. Further, the related advancements and challenges in practical energy applications are discussed.

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“…However, the lack of substantial cycling data makes it impossible to determine the durability of the monoclinic structure during repeated charge/discharge process. 149 …”

Section: Ion Doping Of LI 4 Ti 5 O 12 Materials For Enhancement In Ramentioning

confidence: 99%

Ti-based compounds as anode materials for Li-ion batteries

Zhu

Wang

Xia

2012

Energy Environ. Sci.

799

541

View full text Add to dashboard Cite

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“…It is interesting that a large number of titanate nanostructures (i.e., nanotubes, nanowires, and nanobelts) have been widely obtained by a simple hydrothermal treatment of TiO 2 particles in NaOH solution [5,[10][11][12][13][14] since the first report on the successful synthesis of titanate nanotubes [15]. Though the detailed structure of these materials is under debate, it has been generally recognized that many sodium titanate nanomaterials crystallize as layered trititanate structures, suggested to be layers of Na 2 [16][17][18][19][20][21][22]. Due to the high-performance ionexchange property of Na 2 Ti 3 O 7 , it may be used for removal and recovery of heavy metal ions from industrial wastewaters [18], lithium-ion batteries and hydrogen storage materials [5,16].…”

Section: Introductionmentioning

confidence: 99%

“…Though the detailed structure of these materials is under debate, it has been generally recognized that many sodium titanate nanomaterials crystallize as layered trititanate structures, suggested to be layers of Na 2 [16][17][18][19][20][21][22]. Due to the high-performance ionexchange property of Na 2 Ti 3 O 7 , it may be used for removal and recovery of heavy metal ions from industrial wastewaters [18], lithium-ion batteries and hydrogen storage materials [5,16]. In contrast to extensive studies on the synthesis and modification of titanate nanostructures, very few theoretical studies were carried out [20,23,24].…”

Section: Introductionmentioning

confidence: 99%

First-principle calculations for electronic structure and bonding properties in layered Na2Ti3O7

Xiang

et al. 2011

Open Physics

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Ê Ú ¾¼ Å Ö ¾¼½½ ÔØ ¾ ÂÙÐÝ ¾¼½½ ×ØÖ ØFirst-principles calculations of Na 2 Ti 3 O 7 have been carried out with density-functional theory (DFT) and ultrasoft pseudopotentials. The electronic structure and bonding properties in layered Na 2 Ti 3 O 7 have been studied through calculating band structure, density of states, electron density, electron density difference and Mulliken bond populations. The calculated results reveal that Na 2 Ti 3 O 7 is a semiconductor with an indirect gap and exhibits both ionic and covalent characters. The stability of the (Ti 3 O 7 ) 2− layers is attributed to the covalent bonding of strong interactions between O 2p and Ti 3d orbitals. Furthermore, the O atoms located in the innerlayers interact more strongly with the neighboring Ti atoms than those in the interlayer regions. The ion-exchange property is due to the ionic bonding between the Na + and (Ti 3 O 7 ) 2− layers, which can stabilize the interlayers of layered Na 2 Ti 3 O 7 structure.

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“…7), 8) In the previously published paper, synthetic method, composition, coordination environment of hydrogen 8) and Li insertion-extraction property have been reported. From these results, in H 2 Ti 12 O 25 , it was certainly confirmed not to be a mixture materials.…”

Section: )4)mentioning

confidence: 99%