Li2TiO3/Ni foam composite as high-performance electrode for energy storage and conversion
| Autor: | C.M. Julien, Alain Mauger, Nunna Guru-Prakash, Obili M. Hussain, M. Dhananjaya, A. Lakshmi-Narayana |
|---|---|
| Přispěvatelé: | Sri Venkateswara University, Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Pseudo-supercapacitors Lithium-ion batteries Materials science Composite number Electrochemistry 7. Clean energy Capacitance 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Composite electrode material Lithium titanate lcsh:Social sciences (General) lcsh:Science (General) Supercapacitor Multidisciplinary Energy Materials characterization [CHIM.MATE]Chemical Sciences/Material chemistry Condensed matter physics Lithium battery Anode 030104 developmental biology Chemical engineering chemistry Electrode lcsh:H1-99 030217 neurology & neurosurgery Inorganic chemistry lcsh:Q1-390 |
| Zdroj: | Heliyon Heliyon, Elsevier 2019, 5 (7), pp.e02060. ⟨10.1016/j.heliyon.2019.e02060⟩ Heliyon, Vol 5, Iss 7, Pp e02060-(2019) Heliyon, 2019, 5 (7), pp.e02060. ⟨10.1016/j.heliyon.2019.e02060⟩ |
| ISSN: | 2405-8440 |
| DOI: | 10.1016/j.heliyon.2019.e02060⟩ |
| Popis: | International audience; Li 2 TiO 3 /Ni foam composites were prepared by a solid-state reaction process. They crystallized in the monoclinic Li 2 TiO 3 structure with C2/c space group. SEM images show that the Li 2 TiO 3 particles are monodispersed crys-tallites of average size 49 nm, infused into porous scaffold Ni foam. As an anode in lithium battery, the composite delivered a discharge capacity of 153 mAh g À1 in an aqueous electrolyte and retained 95% of its initial capacity after 30 cycles. Moreover, the Li 2 TiO 3 /Ni foam composite as a negative electrode of pseudo-supercapacitor delivered a specific capacitance of 593 F g À1 and retained 95% of its initial capacitance after 1000 cycles. The enhanced capacity of Li 2 TiO 3 /Ni composite is due to porous scaffold Ni foam, which provides high conductivity to the Li 2 TiO 3 particles and high effective surface area for redox reactions. The performance of the Li 2 TiO 3 /Ni foam as an electrode material for both lithium-ion batteries (LIBs) and supercapacitors (SCs) shows that this composite is promising for energy storage devices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|