Epcos Ag

Institute Ces, Institut Znanosti in Technologije, D.o.o.

Ecubes D.o.o.

Institute Ces, Institut Znanosti in Tehnologije, D.o.o.

Matjaz Valant

Danilo Suvorov

Christian Hoffmann

Helmut Sommariva

Pavol Dudesek

Christian Hoffman

The method includes two technological segments (i) a reduction segment and (ii) an oxidation segment that are interconnected by various support technological processes for the regeneration of solutions and gases and heat recuperation. The reduction segment includes an electrolysis that is performed from a solution of chloride salts of an energy carrier. During the electrolysis, these elements reduce to a lower oxidation state, solidify on the electrodes or precipitate to a solid state. The solid substance thus obtained is the energy carrier that can be stored outside of the electrolyser until a need for additional energy emerges. During the electrolysis, chlorine gas develops that is collected and dissolved in water. An HCl solution is regenerated, which is used in the oxidation segment. Oxygen is released in this process. The energy that has thus been stored in the oxidation potential of the energy carrier is released during a spontaneous chemical reaction between the energy carrier and the HCl solution in the oxidation segment. In this chemical reaction, the oxidation state of the chemical elements which constitute the energy carrier is increased to an oxidation state identical to that from before the beginning of the electrolysis. The reaction product hydrogen is formed that represents a high calorific fuel. This fuel can be immediately converted to heat or electrical energy, without a need for intermediate storage, by known methods. Only water enters the entire method, oxygen and hydrogen leave, while the cycle is closed/cyclic for the remaining substances.

Method for storing electrical energy in solid matter

A ceramic mixed system is proposed that includes a two-phase mixture of pure components A and B, wherein phase A is based on the cubic to tetragonal modification of BiNbOand phase B is based on a monoclinic pyrochlore modification of Bi(ZnNb)O. The electrical properties of ceramics produced therefrom make the material suitable for components having a multilayer structure in which capacitors and inductors are integrated and which can be used in data processing or signal processing.

Ceramic material, sintered ceramic and component made therefrom, production method and use of the ceramic

A ceramic material includes at least two different components. Each of the components is present in separate phases. Each of the components has a perovskite structure which contains silver in A positions and niobium or tantalum in B positions. A composition of a first component and a composition of a second component has respective permittivities TK&#x3b5;and TK&#x3b5;. In the ceramic material, temperature components of the permittivities TK&#x3b5;and TK&#x3b5;have different signs within a temperature interval.

Dielectric Ceramic Material

A method of producing a ceramic object includes producing particles of a type A and a type B. Each particle has a dimension of at least 5 &#x3bc;m and each type of particle includes a ceramic material that is based on a mixture of silver oxide, niobium oxide and tantalum oxide. The method includes producing a particle mixture by mixing the types of particles, producing a green compact by compressing the particle mixture, and sintering the green compact.

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Matjaz Valant