State detection method, consistency detection method and device for de-embedded electrode plate pair

Abstract

The embodiment of the present invention discloses a state detection method, a consistency detection method and a device for de-embedded electrode plate pairs. A specific embodiment of the method includes: real-time detection of the power supply state of the de-embedded electrode plate pair, the above-mentioned power supply state is used to characterize the manner in which the power supply supplies power to the de-embedded electrode plate, including constant current power supply and constant voltage power supply, and the above-mentioned de-embedded electrode plate The pair includes a positive plate and a negative plate; in response to the power supply state of the above-mentioned de-embedded electrode plate pair being constant current power supply, the control power supply applies a preset pulse current to the above-mentioned de-embedded electrode plate pair; Receive a voltage feedback signal corresponding to the above-mentioned preset pulse current , according to the voltage feedback signal to determine the working state information of the de-embedded electrode plate pair. This embodiment realizes the monitoring of the working state of the de-intercalation electrode plate pair, which is beneficial to improve the lithium extraction efficiency during the reaction process.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of power supply technology of a deintercalation tank for lithium extraction by electrochemical deintercalation, and in particular to a state detection method, a consistency detection method and a device for deintercalation electrode plate pairs. Background technique [0002] Electrochemical deintercalation method The deintercalation tank used for lithium extraction from salt lake is usually composed of multiple deintercalation electrode plate pairs connected in series, and the power supply is alternately forward or reverse according to constant current or constant voltage mode. Board pair power supply. Among them, the electrochemical state information of the de-embedded electrode plate pairs, and the inconsistency of manufacturing or long-term operating conditions, such as the uneven pressure of the liquid flowing in the cathode and anode chambers at different positions of the de-insert...

AI Technical Summary

Problems solved by technology

Among them, the electrochemical state information of the de-intercalation electrode plate pair, as well as the inconsistency of the manufacturing or long-term operating conditions, such as the uneven pressure of the flowing liquid in the cathode and anode chambers in different positions of the de-intercalation tank, etc. The inconsistent electrochemical reactions may cause the reaction process of each deintercalation electrode plate in the deintercalation tank to extract lithium out of sync.

Electrode plates with poor electrochemical performance become a restrictive factor affecting the full function of the entire deintercalation tank, and even the entire electrochemical lithium extraction process ends early, and the electrical performance of electrode plates with poor electrochemical performance is relatively large internal resistance

In this way, it will affect the lithium extraction efficiency of the deintercalation electrode plate pair of the entire series circuit

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