CAJ | 학술논문

比较了硝酸盐-氨基乙酸燃烧(GNC)法和溶胶-凝胶(SG)法合成的锂离子电池电极材料LiMn_(1.9)Al_(0.05)Mg_(0.05)O_(3.9)F_(0.1)的电化学性能.不同的合成方法,导致材料的晶相结构、形貌、比表面积及电化学性能上的差异.与SG法相比,GNC法合成的样品电化学性能更好,在25 ℃、55 ℃时,第20次循环的容量保持率分别为98.1%、93.1%.
비교료초산염-안기을산연소(GNC)법화용효-응효(SG)법합성적리리자전지전겁재료LiMn_(1.9)Al_(0.05)Mg_(0.05)O_(3.9)F_(0.1)적전화학성능.불동적합성방법,도치재료적정상결구、형모、비표면적급전화학성능상적차이.여SG법상비,GNC법합성적양품전화학성능경호,재25 ℃、55 ℃시,제20차순배적용량보지솔분별위98.1%、93.1%.
The electrochemical performance of Li-ion battery cathode material LiMn_(1.9)Al_(0.05)Mg_(0.05)O_(3.9)F_(0.1) synthesized by glycine-nitrate combustion(GNC)method and sol-gel(SG)method was compared. The difference in preparation methods resulted in the difference in the structure,morphology,specific surface area and electrochemical performance of the materials. The samples prepared by GNC method exhibited better electrochemical performance than those prepared by SG method,its capacity retention rates were 98.1% and 93.1% at the 20th cycle under 25 ℃ and 55 ℃,respectively.