The results also indicate that the samples with larger crystal cell , more smooth particle surface and larger particle size exhibit better electrochemical performances . in the chapter 3 , the layered licoo2 and yco0 . 8ni0 . . 2o2 cathode material have been studied 理化性能参数与充放电性能的相关性分析表明，晶胞参数大，颗粒表面光滑，菱角清晰，晶粒尺寸较大的样品，充放电性能较好。
By the increasing of temperature , liyco3 - xo4 was further changed into licoo2 and lixco1 - xo , and then licoo2 formed by the reaction of lixco1 - xo with li2o . the reaction that produces licoo2 is almost completely done at 700 , although some remaining li2o and li2co3 present as a partially amorphous film dispersed on the surface of licoo2 , which can accelerate the growth of licoo2 crystallites . however , when temperature is higher than 850 , some of licoo2 begin to decompose into the solid solution phase of liyco2 - yo2 and lixco1 - xo , and damaged its own crystal structure 制备licoo _ 2的合成反应中licoo _ 2的微结构不断发生变化，随着焙烧温度升高， co _ 3o _ 4晶粒逐渐减小， licoo _ 2晶粒和颗粒逐渐长大，晶格内部缺陷减少， licoo _ 2晶格趋于完整，在焙烧温度为850时licoo _ 2晶粒达到最大值；焙烧温度低于700 ，晶胞参数a随着焙烧温度上升而减小，晶胞参数c随着焙烧温度上升而增大；而高于700则晶胞参数基本保持不变。
Treatment of the spinel limn2o4 with aqueous acid produces - mno2 . x - ray diffraction and atomic absorption spectroscopy show that - mno2 with lattice constant of 0 . 806nm preserves the structural framework of the limn2o4 and the conversion of limn2o4 to - mno2 results in some contraction of the lattice 利用limn2o4与稀酸作用制得- mno2 ，经xrd 、原子吸收光谱( aas )分析表明- mno2仍然保持了尖晶石的面心立方点阵，晶胞参数0 . 806nm ； limn2o4经过酸处理、锂离子脱出后晶胞体积发生了收缩。
This paper has described relative information of gold depositions genesis and hunting besed on studying characteristic of occurrence and appearance , compositions of trace elements , cell parameters , thermoelectricity , ir spectroscope with pyrite in huang - sha gold depositon of jiangxi . it can be provided important scientific basis for evaluation this deposition and hunting a similar ore point or zone in huang - sha region 通过对江西黄沙金矿床中黄铁矿的产状及形态特征、成分特征、晶胞参数特征、热电性、红外光谱特征等矿物学的详细研究，讨论了黄沙矿中蕴藏的金矿成因及找矿信息，为正确评价该矿床和在该区找寻新的金矿点(带)提供了重要的依据。
After processing , the cell parameter , transparency , optical damage threshold of ktp crystal have been measured as well as the distribution coefficient of doped elements . the results showed that , after dopping , the cell parameter and transparency of ktp crystal changed little ; optical damage threshold increased three orders of magnitude than the common flux ktp , meanwhile , optical homogeneity decresed a little 将ktp晶体加工后测试了它们的晶胞参数、透过率、光损伤阈值、掺杂元素分凝系数等，结果表明，经过掺杂的ktp晶体晶胞参数、透过率等基本没有变化，光学均匀性稍有下降，而激光损伤阈值却提高了3倍。
The performance of the sample which was prepared by heating for 48h at 750 was the best in the three samples . the licoo2 - coated limmo4 and linio2 - oated limn2o4 spinel cathode materials were compared . their xrd analysis , sem analysis , aas analysis and xps analysis showed that they had the appearance of full crystal and that their grain distribution was uniform and their average was less than 2um Xrd 、 sem 、 aas和xps分析显示，其晶体形貌完整，粒度分布均匀且平均粒度不到2 m ：但licoo _ 2包覆的limn _ 2o _ 4尖晶石正极材料具有更小的晶胞参数、更好的电化学稳定性和结构更稳定的晶粒表层。
