LiMn₂O₄ (LMO) has become a promising candidate to replace LiCoO₂ as a cathode material in high power Li-ion batteries, due to its ease of preparation, low cost and non-toxicity. However, the performance of LiMn₂O₄ cathode is limited by capacity fade, particularly at high temperatures. It is believed that the capacity fade of LiMn₂O₄ is driven by the loss of Mn resulting from the disproportionation of surface Mn³⁺ with the resultant divalent Mn ions dissolving into stray moisture and electrolyte. In this work, we investigate possible candidate LMO dopants that can inhibit or reduce Mn dissolution. Several dopant-selection criteria are considered, and the electronic structure of the doped LMO will be discussed.