摘要:
The invention relates to a method for estimating the inner state of an electrochemical system for storing electrical energy, such as a battery. For different inner states of the same type of batteries as the analysed battery, impedance measurements are carried out by adding an electrical signal to the current flowing through the batteries. Then, an RC circuit is defined for modeling said impedances. A relation between the Soc (and/or the SoH) and the parameters of the RC circuit is then calibrated by means of a multi-varied statistical analysis. An impedance measurement of the analysed battery is carried out, and then modelled by means of the RC circuit. Then, by applying the relation to the parameters of the equivalent electric circuit, defined for the analysed battery, the inner state of said battery is estimated.
摘要:
The invention relates to a new type of redox-flow battery called a "redox-particle-flow" battery, wherein the positive and negative active materials, e.g. the redox pairs employed at the positive electrode and at the negative electrode, are solid-phase materials. The latter take the form of electrically conductive particles that are transported as needs be into the electrolyte-bathed reactional zone, in which they form a sediment and percolate electrically as far as the current collectors, allowing the redox reactions to take place and the battery to operate.