A new oxyfluorinated titanium phosphate anode for a high-energy lithium-ion battery.
ACS Appl Mater Interfaces
; 7(2): 1270-4, 2015 Jan 21.
Article
de En
| MEDLINE
| ID: mdl-25541903
ABSTRACT
Na3[Ti2P2O10F] was synthesized by a hydrothermal method. It has an open framework structure consisting of TiFO5 octahedra and PO4 tetrahedra. The feasibility of Na3[Ti2P2O10F] as an anode material for lithium-ion batteries was first studied. Na3[Ti2P2O10F] exhibits a reversible capacity of more than 200 mAh g(-1) at a discharge/charge current rate of 20 mA g(-1) (â¼0.1 C) and 105 mA g(-1) at a discharge/charge current rate of 400 mA g(-1) (â¼2 C) with a lower intercalation voltage. The result of in situ X-ray diffraction test shows the structural evolution during the first discharge/charge cycle. The structure of Na3[Ti2P2O10F] was kept during discharge/charge with a slight change of the lattice parameters, which indicates a lithium solid solution behavior.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Langue:
En
Journal:
ACS Appl Mater Interfaces
Sujet du journal:
BIOTECNOLOGIA
/
ENGENHARIA BIOMEDICA
Année:
2015
Type de document:
Article
Pays d'affiliation:
Chine