摘要
采用流变相法制备了Li1+xMnO1.92F0.08(x=0、0.05、0.10和0.20)。在800℃、氮气保护下煅烧8 h制备的产物中,LiMnO1.92F0.08和Li1.05MnO1.92F0.08有完整的正交层状结构,Li1.10MnO1.92F0.08和Li1.20MnO1.92F0.08有Li2MnO3和Li2Mn2O4杂质。以0.2C放电,Li1.05MnO1.92F0.08的最大放电比容量为157.85 mAh/g,第30次循环的比容量为157.15 mAh/g。
Li1 ＋ x MnO1.92 F0.08 （ x = 0,0.05,0. 10 and 0.20） was synthesized by rheological phase method. In the pro-ducts obtained by calcined at 800 ℃ for 8 h with nitrogen protection,the complete orthorhombic phase was found in LiMnO1.92F0.08 and Li1.05MnO1.92F0.08, Li1.10MnO1.92F0.08 and Li1.20MnO1.92F0.08 had Li2MnO3 and Li2Mn2O4 impurities. When discharge at 0.2 C, the maximum specific discharge capacity of Li1.05 MnO1.92F0.08 was 157.85 mAh/g, the specific discharge capacity at the 30th cycle was 157.15 mAh/g.
出处
《电池》
CAS
CSCD
北大核心
2009年第5期272-274,共3页
Battery Bimonthly
关键词
锂离子电池
正极材料
流变相法
LIMNO2
共掺杂
Li-ion battery
cation materials
rheological phase reaction method
LiMnO2
co-doping
