摘要
锂嵌入[Mn_2O_4]晶格形成嵌合物Li_xMn_2O_4.通过对不同温度(20～45℃)下的Li/Li_xMn_2O_4电池的库仑滴定曲线[EMF(x)]的测定,可以求得该嵌入过程的嵌入熵、焓和自由能等热力学函数.在x<1.5时,表现为很高的偏摩尔自由能,在x=1/2和x=1时,嵌入熵和焓表现为不连续性.热力学函数值与Li_xMn_2O_4的晶体结构关联.
Thermodynamic properties of lithium intercalation reaction into spinel phase [Mn2O4] were investigated by coulombic titration with Li / LixMn2O4 intercalation cell. The functions, ΔG, ΔH, ΔS, were gained from the EMF(x) data and were in good agreement with the structure of [Mn2O4].
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1994年第8期763-766,共4页
Acta Chimica Sinica
基金
国家自然科学基金资助的项目.
