Liquid metal battery

Abstract

The invention provides a liquid metal battery, which comprises a first shell and a first head cover arranged on the first shell, wherein at least one first battery pack is arranged in the first shell and comprises a first conductive crucible; a first positive electrode and a first electrolyte are arranged in the first conductive crucible; a first negative electrode is arranged in the first electrolyte; the first negative electrode is provided with a first negative electrode lead-out rod which is vertically arranged; and one end of the first negative electrode lead-out rod and the first head cover are arranged in an insulating manner. According to the liquid metal battery with the structure, the first conductive crucible playing an isolating role is arranged in the first shell for preventing alloy reaction between the first positive electrode and the first shell. The first electrolyte and the first positive electrode are arranged in the first conductive crucible. Compared with the liquid metal battery with an existing structure, the liquid metal battery has the advantages that the cycle life is longer, the influence of the outside on the battery is relatively small and management of the battery is more convenient.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a liquid metal battery. Background technique [0002] Renewable energy sources such as wind power and photovoltaics have received extensive and continuous attention due to their advantages such as cleanliness and pollution. Discontinuous and irregularly changing defects are the main obstacles to the popularization and use of this type of power generation technology. At present, the energy storage technology that is currently being studied can output energy smoothly, but its energy is realized by storing energy and cannot generate electricity by itself. Therefore, combining it with wind power and photovoltaic power generation technology will make good use of it. Endless wind, solar, etc. Therefore, it is particularly critical to develop large-scale energy storage technologies that can efficiently store and stably output intermittent energy such as wind energy and solar energy. At prese...

AI Technical Summary

Problems solved by technology

[0004] However, there are still some defects in liquid metal batteries at present. For example, the battery needs to work at high temperature, and the positive and negative electrode materials and electrolyte molten salt inside the battery are all in liquid state. They are extremely sensitive to moisture and oxygen in the air, which is a major cause of battery failure. Reason, so battery sealing requirements are very high

In addition, at high temperature, the molten positive and negative electrodes and the molten salt corrode the battery components such as the casing and the positive and negative insulating ceramics at a faster rate, especially the alkali metal of the negative electrode corrodes the insulating ceramics particularly severely, which will greatly reduce the service life of the battery. Shorten etc.

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