Manganese(II) phosphate Manganese(II) phosphate Manganese(II) phosphate is an inorganic compound with the chemical formula Mn(PO). It is a rarely studied species, in contrast to the related lithium manganese phosphate, which has been investigated as a battery cathode. Manganese phosphates often combine with iron phosphates through paragenesis. In the process of paragenesis, each mineral affects the manner in which the other is crystallized. The minerals combine in isomorphic series, meaning that they crystallize in similar forms, producing a sequence of solids. Some examples of “isomorphic series” formed by Mn and Fe include heterosite (Fe,Mn)PO, purpurite (Mn,Fe)PO, and triplite (Mn,Fe)PO. The immersion method is
Lithium ion manganese oxide battery made of alternating layers of lithium ions and lithium and manganese ions in a 1:2 ratio, similar to the layered structure of . Although is electrochemically inactive, it can be charged to a high potential (4.5 V v.s Li) in order to undergo lithiation/de-lithiation. However, extracting lithium from at such a high potential results in loss of oxygen from the electrode surface which leads to poor capacity and cycling stability. One of the main research efforts in the field of lithium-manganese oxide electrodes for lithium-ion batteries involves developing composite electrodes using structurally integrated layered and spinel , with a chemical