Lattice parameter as a measure of electrochemical properties of LiMn2O4

Abstract Many factors affect the electrochemical properties of LiMn 2 O 4 . Among these factors the amount of Mn 3+ is an important factor which largely influences the capacity and capacity fading. However, it is difficult to detect the amount of Mn 3+ by chemical titration method. In this research we try to relate the amount of Mn 3+ with the lattice parameter. Lattice parameter is easy to measure. Therefore, if the amount of Mn 3+ can be deduced by the lattice parameter, it will be very helpful to control and design the electrochemical properties of LiMn 2 O 4 . The results show a good relationship among the lattice parameter, the amount of Mn 3+ and the capacity. Thus, lattice parameter could be used to deduce the electrochemical properties of LiMn 2 O 4 , although many works are still needed to construct a firm relationship.