Metals are typically used as active materials for negative electrodes in batteries. Recently, redox-active organic molecules, such as quinone- and amine-based molecules, have been used as negative .
/PRNewswire/ The "Global EV Battery Vehicle Market" report has been added to ResearchAndMarkets.com s offering. An electric-vehicle battery (EVB, also known.
/PRNewswire/ The "Global EV Battery Vehicle Market" report has been added to ResearchAndMarkets.com s offering. An electric-vehicle battery (EVB, also known.
The present study reports the development of nanosized and metastable molybdenum oxide as efficient negative electrode material for aqueous electrolytes in lithium-ion batteries.
Na-ion batteries (NIBs) are potential candidates for electrical energy storage systems owing to the naturally abundant sodium resources. In contrast to Li-ion batteries (LIBs), the anodes of NIBs suffer from the slow kinetics of sodiation because of larger ion radius, which deteriorates their performance. In this work, the cationic vacancies are introduced by a solvothermal method to produce cation-deficient Ti0.84□0.16O1.42F0.37(OH)0.21 with improved sodium storage performance, showing a charge capacity (215 mAh g-1, 0.1C) and remarkable long-term cyclic stability (the capacity retention rate is 94.6% under 1C over 700 cycles). The insertion of Na ion into the vacancies and lattice gap without dramatic structure change is verified by in situ synchrotron-based X-ray diffraction (XRD) and ex situ high-resolution transmission electron microscopy (HRTEM). The introduced cationic vacancies are beneficial to accelerate sodium storage kinetics and to improve electrochemical performance. Th