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A kind of heating method of sodium-sulfur battery

A sodium-sulfur battery and temperature rise control technology, which is applied in the temperature control of the battery and the temperature rise of the sodium-sulfur battery, can solve the problems affecting the service life of the battery, and achieve the goal of prolonging the service life, improving safety and efficiency, and having a large temperature uniform area Effect

Active Publication Date: 2016-06-01
DONGFANG ELECTRIC CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the temperature gradient of the single battery from top to bottom is large during the heating process of the battery, the volume of the local material will expand, and the pressure on the ceramic tube and the weld will affect the service life of the battery.

Method used

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  • A kind of heating method of sodium-sulfur battery
  • A kind of heating method of sodium-sulfur battery
  • A kind of heating method of sodium-sulfur battery

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0044] A method for raising the temperature of a sodium-sulfur battery. The top of the sodium-sulfur battery 1 is provided with a heating device, which is the top temperature control zone 2; the bottom of the sodium-sulfur battery 1 is provided with a heating device, which is the bottom temperature control zone 3; The sodium-sulfur battery 1 is surrounded by a layer of surrounding temperature control zone 4, which is provided with a heating device; the temperature rise control steps of the sodium-sulfur battery 1 from room temperature to working temperature are as follows:

[0045] A. Start all temperature control zones, heat the sodium-sulfur battery 1 to the first target temperature of 70°C, and keep warm;

[0046] B. The bottom temperature control zone 3 and the surrounding temperature control zone 4 continue to keep warm, and the top temperature control zone 2 is heated to the second target temperature of 97°C;

[0047] C. After the top temperature control zone 2 is heated...

Embodiment 2

[0057] A method for raising the temperature of a sodium-sulfur battery. The top of the sodium-sulfur battery 1 is provided with a heating device, which is the top temperature control zone 2; the bottom of the sodium-sulfur battery 1 is provided with a heating device, which is the bottom temperature control zone 3; The above-mentioned sodium-sulfur battery 1 is divided into two layers from top to bottom, which is the surrounding temperature control area 4, wherein each layer is provided with an independent heating device; the temperature rise of the sodium-sulfur battery 1 from room temperature to the working temperature The control steps are as follows:

[0058] A. Start all temperature control zones, heat the sodium-sulfur battery 1 to the first target temperature of 97°C, and keep warm;

[0059] B. The bottom temperature control zone 3 and the surrounding temperature control zone 4 continue to keep warm, and the top temperature control zone 2 is heated to the second target t...

Embodiment 3

[0070] A method for raising the temperature of a sodium-sulfur battery. The top of the sodium-sulfur battery 1 is provided with a heating device, which is the top temperature control zone 2; the bottom of the sodium-sulfur battery 1 is provided with a heating device, which is the bottom temperature control zone 3; The above-mentioned sodium-sulfur battery 1 is divided into three layers from top to bottom, which is the surrounding temperature control area 4, wherein each layer is provided with an independent heating device; the temperature rise of the sodium-sulfur battery 1 from room temperature to the working temperature The control steps are as follows:

[0071] A. Start all temperature control zones, heat the sodium-sulfur battery 1 to the first target temperature of 83.5°C, and keep warm;

[0072] B. The bottom temperature control zone 3 and the surrounding temperature control zone 4 continue to keep warm, and the top temperature control zone 2 is heated to the second targ...

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Abstract

The invention relates to a method for raising the temperature of a sodium-sulfur battery. The top of the sodium-sulfur battery is equipped with a heating device, which is the top temperature control area; the bottom of the sodium-sulfur battery is equipped with a heating device, which is the bottom temperature control area; the surrounding area of ​​the sodium-sulfur battery is divided into 1-4 Layers, which are surrounding temperature-controlled areas, where each layer is provided with an independent heating device. In this method, the sodium-sulfur battery module is divided into multiple temperature control areas, and the order and speed of temperature rise in each temperature control area are controlled by temperature sections, so as to reduce the influence of the temperature rise process on the single battery and avoid battery damage caused by large temperature gradients in key temperature sections. The problem of forced charging and discharging between cells and the stress caused by local expansion inside the single battery to ceramics and welds can improve the safety and efficiency of battery heating.

Description

technical field [0001] The invention relates to a battery temperature control method, more specifically, the invention relates to a sodium-sulfur battery temperature raising method, which belongs to the technical field of temperature control of high-temperature sodium-ion secondary batteries such as sodium-sulfur batteries in the field of energy storage technology. Background technique [0002] Sodium-sulfur battery is one of the energy storage battery technologies with potential application in power grid peak regulation and frequency regulation, intermittent energy grid connection, distributed energy storage power station, etc. Sodium-sulfur batteries are high-temperature batteries with an operating temperature of 300-350°C. The sodium-sulfur battery module is usually composed of a certain number of cylindrical single cells connected in series and parallel. There are insulation materials, heating temperature control and battery management interfaces on the periphery of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/615H01M10/627H01M10/633
CPCY02E60/10
Inventor 林久唐光盛阴宛珊李敏方源
Owner DONGFANG ELECTRIC CORP LTD