http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Selvarasu Praneetha,Yun-Sung Lee,Vanchiappan Aravindan 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.112 No.-
Vanadium pentoxide (V2O5) brings vast interest in the promising host materials for the intercalation ofmultivalent ions, owing to its abundance in the earth crust, synthesizing facile methodologies, and offersmaximum discharge capacity of >300 mAh g1. However, V2O5 undergoes different phase transformationsupon the intake of beyond 1 mol Li. Here, we report a comparative study of two versatile cathodematerials, such as V2O5 (limiting 1 mol. Li) and LiFePO4. A solvothermal method is adopted to synthesizeboth two, and three-dimensional crystalline phases of V2O5 and LiFePO4, respectively. The sphericalshapedV2O5 exhibits the initial discharge capacity of 136 mAh g1 in the half-cell assembly and rendersstable cycle life. Subsequently, V2O5 is paired with the electrochemically lithiated graphite (LiC6) anode infull-cell assembly (V2O5/LiC6) and offers a maximum energy density of 266.7 Wh kg1 (based on totalmass loading). On the other hand, LiFePO4 also exhibits 136 mAh g1 in the half-cell performance withstable cycle life. The full-cell LiFePO4/C delivers an energy density of 234.8 Wh kg1. This clearly encouragesthat V2O5 is a strong contender for the 3.4 V class Li-ion cells and paves the new avenue for furtherexploration of advanced battery technologies.