In-situ microscopic imaging device for metal negative electrode battery

Abstract

The invention discloses an in-situ microscopic imaging device for the metal negative electrode battery, which comprises an upper cover, a silica gel sealing ring, a silica gel support body, a copper current collector, a quartz window, one-way conduits and a base; the upper cover and the base are respectively arranged at the top and the bottom of the silica gel support body, and the middle part of the upper cover is provided with an observation port; and a cylindrical cavity opposite to the observation opening is formed in the middle of the silica gel support body, a quartz window is formed in the top of the cylindrical cavity, an electrolyte storage tank opposite to the cylindrical cavity is formed in the top of the base, the one-way conduits are arranged on the two sides of the silica gel support body, and the copper current collector is flatly laid at the bottom of the cylindrical cavity. According to the in-situ microscopic imaging device for the metal negative electrode battery, the dynamic growth process of dendrites can be observed and analyzed in a micron range, the thickness is only 1.5 cm, the in-situ microscopic imaging device can be used for comprehensively observing the dendrite growth / dissolution process of the metal negative electrode in the charging and discharging process, the observation requirements of different metal negative electrodes are met, the design is simple, the operation is convenient, and repeated use can be realized.

Description

technical field [0001] The invention relates to the technical field of material characterization, in particular to an in-situ microscopic imaging device for a metal negative electrode battery. Background technique [0002] The growing market for portable electronics, electric vehicles, and distributed energy storage systems has triggered a rapid increase in the demand for energy storage devices. Among all kinds of energy storage systems, rechargeable batteries, as one of the most promising energy storage technologies, have successfully changed the modern life due to their wide application in terminals such as mobile phones / laptops and emerging electric vehicles. communication and transportation methods. In the current research, the metal anode is expected to become the core material of the next-generation energy storage system. However, there is an uncontrollable problem of dendrite growth in the deposition and stripping process of the metal anode, which can easily cause th...

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Problems solved by technology

The in-situ microscopic imaging device designed by patent CN 210198972 U, its battery pack is designed in the case of large depth and small depth of field, which will easily cause blurred background and inconvenient assembly

The in-situ microscopic observation device for the crystal growth process designed by the patent CN102634846A cannot realize the isolated air test and cannot observe the growth of metal dendrites under electrochemical conditions

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