Semi-liquid metal electrode energy storage battery

A technology of metal electrodes and energy storage batteries, which is applied in the direction of molten electrolyte fuel cells, battery electrodes, circuits, etc., can solve the problems of accelerating the high-temperature corrosion rate of battery shells, reducing the utilization rate of electrode materials, and reducing battery life, so as to improve safety. Performance and reliability, lower energy storage costs, and longer battery life

Active Publication Date: 2013-08-21
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

This design reduces the utilization rate of electrode materials and increases the cost of energy storage. Excessively high operating temperature (>700°C) will also accelerate the high-temperature corrosion rate of the

Method used

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  • Semi-liquid metal electrode energy storage battery

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 As shown, the present invention includes a casing 1, a positive electrode 3, an electrolyte 4, a negative electrode 5 and a current collector 6. The casing 1 is a metal cylinder with a closed bottom end, and an insulating ceramic tube 2 is installed in the metal cylinder. The insulating ceramic tube 2, a positive electrode 3, an electrolyte 4, and a negative electrode 5 are placed in sequence from bottom to top, and a flat current collector 6 is wrapped inside the negative electrode 5. The upper end surface of the casing 1 is closed by a top cover 7, and the The negative electrode lead 8 connected to the current collector 6 passes through the central hole of the top cover and is insulated from the top cover 7 by the insulating ceramic tube 2 .

[0029] 68 embodiments of the present invention are shown in Table 1.

[0030] In ea...

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Abstract

The invention relates to a semi-liquid metal electrode energy storage battery, belonging to the field of an energy storage battery, and aiming at solving the problems that the all-liquid metal battery is narrow in battery material selection range and high in running temperature, and has potential safety problem. The semi-liquid metal electrode energy storage battery comprises a shell, a positive pole, electrolyte, a negative pole and a collector, wherein the positive pole is alloy made from one or more of Sn, Sb, Pb, Bi and Te; the negative pole is alloy made from one or more of Li, Na, Mg and Ca; and the electrolyte is a mixture of inorganic salt mixture and ceramic powder. When the semi-liquid metal electrode energy storage battery runs, the positive pole is in a semi-liquid state structure with alloy solid phase distributed in liquid phase, and the electrolyte is melted into semi-liquid state paste, so that the short circuit of the positive pole and the negative pole can be effectively prevented, the energy storage cost is lowered, the working temperature of the battery is reduced, the corrosion speed of the shell is slowed down, the service life of the battery is prolonged, the safety and the reliability of running can be improved, and the semi-liquid metal electrode energy storage battery is suitable for storing energy for new energy power generation grid-connection, frequency modulation and peak-load regulation of an electrical power system as well as smart power grid construction.

Description

technical field [0001] The invention belongs to the field of energy storage batteries, in particular to a semi-liquid metal electrode energy storage battery. Background technique [0002] In recent years, the importance of energy storage technology has become increasingly prominent, whether it is the grid connection of renewable energy such as wind energy and solar energy, or the frequency regulation and peak regulation of the power system, as well as the development of smart grids. At the same time, the research and development of large-scale energy storage technology at home and abroad has gradually set off an upsurge. Existing energy storage technologies mainly include mechanical energy storage, direct electrical energy storage, chemical energy storage and electrochemical energy storage, among which electrochemical energy storage devices such as secondary batteries or flow batteries have high energy density, fast response time, and are flexible and convenient. It is the ...

Claims

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Application Information

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IPC IPC(8): H01M8/14H01M4/86
CPCY02E60/50
Inventor 蒋凯李浩秒王康丽程时杰王玮
Owner HUAZHONG UNIV OF SCI & TECH
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