Bipolar plate and flow battery

Abstract

The invention discloses a bipolar plate and a flow battery. The bipolar plate comprises a body and first flow blocking parts, wherein first electrolyte guide grooves are formed in the first surface of the body; the first flow blocking parts are arranged on the groove walls of the first electrolyte guide grooves. Since the first flow blocking parts are arranged on the groove walls of the first electrolyte guide grooves of the bipolar plate, vortexes are generated when the electrolyte flows in the first electrolyte guide grooves, and the flow path of the electrolyte is prolonged, so that the contact time of the electrolyte and the electrodes is prolonged, the electrolyte is permeated into the electrodes more sufficiently and the reaction between the electrolyte and the electrodes is more complete; the flow path of the electrolyte is effectively planned, so that the flowing dead space can be avoided effectively, and thus, the guide reliability of the bipolar plate is ensured, the performance of the flow battery is improved and the service life of the flow battery is prolonged.

Description

technical field [0001] The present invention relates to the technical field of flow batteries, and more specifically, to a bipolar plate and a flow battery. Background technique [0002] During the working process of the flow battery, the electrolyte flows inside the electrodes. As a carrier for transporting active reactive substances and electrochemical reactions, electrodes have the ability to charge and discharge. [0003] Since the electrode is the place where the charge-discharge reaction occurs, the performance of the flow battery is determined by factors such as whether the reaction between the electrolyte and the electrode is sufficient, and whether the electrolyte penetrates the electrode sufficiently. [0004] The electrolyte in the prior art needs to flow through the first electrolyte diversion tank of the bipolar plate. Since the surface of the first electrolyte diversion tank is smooth, the electrolyte flows through the first electrolyte diversion tank in a lam...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a bipolar plate and a flow battery to solve the problem in the prior art that the electrolyte cannot fully penetrate and react with the electrodes when the electrolyte flows laminarly in the bipolar plate

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