摘要
采用高温法合成了ＬｉＣｏ１－ｘＮｉｘＯ２（ｘ＝０．２，０．５，０．８和１）。通过ＸＲＤ测定了它的晶格结构和晶胞参数。结果发现，随着ｘ值的增大，ａ０值和ｃ０值都顺次变大，ｘ＝１时晶胞体积最大。初步探索了ＬｉＣｏ１－ｘＮｉｘＯ２在１ｍｏｌ／ＬＬｉＣｌＯ４－ＰＣ＋ＤＭＥ中的充放电性能，典型样品在ＡＡ型锂离子电池中放电容量５００ｍＡｈ，０．２Ｃ充放循环了３００次。
LiCo 1-x Ni xO 2 was synthesized by the method of high temperature (x=0.2,0.5,0.8). Its crystal lattice structure and parameters were tested by XRD. The results show that the value of a 0 and c 0 increase along with the increasing value of x and the crystal volume is the largest at the value x=1. The charge and discharge performance of LiCo 1-x Ni xO 2 has been studied by using 1mol/L LiClO 4 PC+DME as electrolyte. The cyclic life of AA size cell with 500mAh at 0.2C rate is more than 300 cycles.
出处
《电源技术》
CAS
CSCD
北大核心
1999年第A03期47-48,共2页
Chinese Journal of Power Sources
