An arrangement of one or more structural elements (3) in a cell lining, in particular for use as a side lining in aluminum electrolysis cells (5). The design of and choice of materials for side linings can be fitted in existing electrolysis cells, plus the design and production of the stated material is selected in view of the main purpose of the material, which is to utilize it for the purpose of energy recovery in electrolysis cells. Possible materials for use in the elements and production of these elements are disclosed.