Zhang Yu
College of Pharmacy, Xinjiang Medical University Urumqi 830011 Xinjiang China.
RSC Adv. 2019 Aug 19;9(45):25942-25950. doi: 10.1039/c9ra04419a.
A palladium and boric acid ion co-doped LiV(PO)/C composite was successfully synthesized by a simple method. A series of characteristics, such as its microstructures and electrochemical properties, were studied. The results show that the modified materials have relatively regular spherical particles and good electrochemical performances for cathode materials. It delivers a high special capacity of 159.2 mA h g at 0.2C and 128.9 mA h g at 5C in the voltage range of 2-4.3 V. After cycling at different rates, the initial discharge capacity retention rate was 97.5%. The enhanced electrochemical properties indicate that the modification method, using anions and cations to collaborative dope the material, effective to improve the electrochemical performance of the electrode material.
通过一种简单的方法成功合成了钯和硼酸离子共掺杂的LiV(PO)/C复合材料。研究了其微观结构和电化学性能等一系列特性。结果表明，改性材料具有相对规则的球形颗粒，作为正极材料具有良好的电化学性能。在2-4.3V电压范围内，其在0.2C时具有159.2 mA h g的高比容量，在5C时具有128.9 mA h g的比容量。在不同倍率下循环后，初始放电容量保持率为97.5%。电化学性能的增强表明，使用阴离子和阳离子协同掺杂材料的改性方法有效地提高了电极材料的电化学性能。
