Device for preventing deterioration of storage capacity and renewing storage capacity of secondary cell, and for measuring storage amount for secondary cell

Abstract

In a secondary cell, an increase in the number of discharges causes the cell electrode surface to be covered with a thin film of poorly conductive inactivated matter, and the thin film crystallizes over time. The crystallization cuts off the charging route of electrochemical degradation caused by the charging current, recharging does not renew the positive electrode and negative electrode, and the storage capacity deteriorates. There is a need for preventing and renewing the deterioration caused by this cycle life, and secondary cell complete charge termination and storage remainder information are important for the effective utilization of energy. Provided is a device for: renewing, by a thermomechanical effect generated by dielectric relaxation loss, an electrode insulator inactivation film based on charging and discharging, which are factors of deterioration of the storage capacity of a secondary cell; automatically seeking individual dielectric relaxation loss frequencies for typical secondary storage cells by an increase in a high-frequency dependent charging current; selectively analyzing insulating films; incidentally learning of the termination of charging of the storage cell by the disconnection and connection of the dielectric relaxation loss frequencies; and giving a storage amount, which is the state of charge of the current conductance of the dielectric relaxation loss frequencies.

Description

technical field [0001] This application relates to a device related to the prevention and regeneration of secondary battery deterioration, the use of the dielectric loss frequency of the inactivation material to perform dielectric heating miniaturization of the electrode non-conductive inactivation material generation by discharge, and the charging current Device for battery regeneration by electrochemical decomposition, simultaneously related to the obtained dielectric heating current value imparting storage capacity, i.e. due to the amount of dielectric dipoles as the amount of electrode non-conductor inactivating substances proportional to the discharge capacity and The dielectric loss is proportional to the conductance of the peak frequency, so the discharge capacity can be known, and the current discharge capacity is subtracted from the rated storage capacity to know the storage capacity as the state of charge SOC. Background technique [0002] Due to the increase in th...

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Problems solved by technology

[0008] However, there is no measurement of the remaining storage capacity, and the patent application is limited to the dielectric thermal decomposition regeneration and deterioration prevention of lead-sulfur acid batteries.

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