Liquid metal battery module and assembling method thereof

Abstract

The invention discloses a liquid metal battery module and an assembling method thereof. The liquid metal battery module comprises a battery box, a plurality of liquid metal battery units and a batterymanagement unit, wherein the battery box comprises a box casing and a lead protection cover; the part between the box casing and the lead protection cover is partitioned into a high-temperature zoneand a low-temperature zone by a top cover casing; the main body parts of the liquid metal battery units are placed inside the high-temperature zone; upper ends of transition necks, cathode current collectors and anode current collectors extend outside the high-temperature zone and reach the low-temperature zone; the cathode current collectors and the anode current collectors of different liquid metal battery units are sequentially connected through battery leads in the low-temperature zone to combine the liquid metal battery units in a serial and parallel connection manner; the battery management unit is arranged on the battery box and is used for controlling and monitoring the liquid metal battery units. By adopting the liquid metal battery module, the problems that batteries are poor ininsulating sealing reliability, battery leads are complexly designed and batteries are hard to overhaul as batteries of a conventional liquid metal battery module are sealed and assembled inside a thermal insulating heat preservation box as a whole, are solved.

Description

technical field [0001] The invention belongs to the technical field of energy storage, and in particular relates to a liquid metal battery module and an assembly method thereof. Background technique [0002] Liquid metal battery is a new type of energy storage battery technology proposed by Professor Sadoway of the Massachusetts Institute of Technology in 2007. This kind of battery usually works at a high temperature of 300 ° C to 700 ° C. Its electrodes are liquid metals and electrolytes are inorganic molten salts. The electrodes and electrolytes are naturally stratified due to density differences and mutual immiscibility. , The negative electrode layer is completely isolated. When the battery is running, it releases electrons from the negative electrode metal and forms an alloy with the positive electrode metal to realize discharge, and releases electrons through the negative electrode metal located in the positive electrode layer and returns to the negative electrode lay...

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Problems solved by technology

[0006] In order to further improve the reliability and practicability of the liquid metal battery module, the present invention will provide a liquid metal battery module and its assembly method, which is used to solve the problem caused by the existing liquid metal battery module because the battery is integrally packaged inside the thermal insulation box. The reliability of battery insulation and sealing is not high, the design of battery leads is complicated, and the battery maintenance is difficult

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