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Power engineering
– Mobile energy storage
POWER ENGINEERING // POWER GENERATION // POWER TRANSPORT // STATIONARY ENERGY STORAGE // MOBILE ENERGY STORAGE // RENEWABLE ENERGY
The electrolytes used in button cells and in other primary batteries too are often highly abrasive and corrosive. They are generally shaped into cylindrical form with a uniaxial pressing process and then further processed to primary cells. The pressing process therefore requires dies that achieve a long lifetime in operation in direct contact with the electrolyte material.
An oxide ceramic material that has proven effective for decades is ZrO2 of the type Mg-PSZ. Selected application-specific technical data of such a material type are listed in the following.
- Purity: ≥99,5 %
- Density: >98 % of the theoretical value
- Mean bending strength: 500 MPa
- Mean compressive strength: 2 000 MPa
- Modulus of elasticity: 200 GPa
- High edge strength
- High resistance to abrasion
- High resistance to corrosion
- High geometric and topographic precision
Realization of form-force and form-fit joints with metals such as steel, Fe-Ni- and Fe-Ni-Co alloys.
