The requirement for higher capacity batteries has ignited the idea of replacing graphite with other materials as the anode in Lithium-ion batteries (LIB). Such materials, like Si, Ge, Sn, etc., can retain higher amounts of Lithium ions, thus increasing the battery capacity. Si has received more focus among these materials due to its largest storage capacity. However, these anode materials tend to undergo large volume deformation due to high Li intake and develop cracks, leading to loss of contact with conductors. Such failures result in low cycle life and reduced battery reliability. To understand the failure process, many models have been established for the lithiation of Si. These models have successfully demonstrated the two-phase lithiation, showing the transformation of the pure Si phase to a metastable amorphous Li-Si alloy, using the Phase-Field method and related stress evolution. However, it is experimentally evident that the Li-Si system can produce many stable phases at high temperatures. Hence, it is crucial to know if the formation of any of the high-temperature phases might cause an important change in the lithiation phenomena. The lithiation models so far have never considered the possibility of multiple stable phase formations during high temperature applications, due to which there is limited data on material parameters specific to phase field equations. Apart from that, there is a limited study available on the effect of applied voltage on the chemical response as well as the mechanical response of the anode material. Finally, the existing solvers for phase-field modeling are not generalized enough/difficult to implement for a sophisticated lithiation problem with multiple phases under mechanical deformations and nonlinear boundary conditions. The current work aims to build a FEM solver-based framework that is capable of showing lithiation at room temperature as well as the high temperature under mechanical deformations. The effect of these changes will then be related to the voltammograms generated for the specific cases.