Low crystallinity VOOH hollow microspheres as an outstanding high-rate and long-life cathode for sodium ion batteries†
Abstract
The main bottlenecks restricting the development of Na-ion batteries are the inferior rate capability and cyclability of cathodes. In this work, a novel cathode material for Na-ion storage, namely, low crystallinity VOOH hollow microspheres, is prepared through a template-free hydrothermal route, and exhibits outstanding rate behavior and long life.