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Lithium-ion battery heat insulation device and control method thereof

A technology of heat preservation device and lithium battery, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as the limitation of the use environment temperature, and achieve the effect of solving the use environment temperature limitation, reducing the impact, and being easy to manufacture.

Active Publication Date: 2012-06-27
DONGGUAN LARGE ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] An object of the present invention is to provide a lithium battery heat preservation device to solve the problem that the existing lithium battery is severely limited by the operating environment temperature

Method used

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  • Lithium-ion battery heat insulation device and control method thereof
  • Lithium-ion battery heat insulation device and control method thereof
  • Lithium-ion battery heat insulation device and control method thereof

Examples

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no. 1 example

[0048] Figure 1~2 Shown the first embodiment of the present invention, the lithium battery heat preservation device in this embodiment, comprises the insulation case 1 that is used to place lithium battery, the heat preservation box 2 that is arranged in insulation case 1, is placed in heat preservation box 2 The lithium battery and the temperature regulating device 3 are also provided with a temperature control circuit in the insulating casing 1, the temperature control circuit is powered by the lithium battery and is used to automatically control the ambient temperature of the lithium battery.

[0049] The insulating casing 1 is a box body made of insulating material that plays a protective and supporting role. Preferably, the box body material is a material with good heat insulation effect, high strength, and good insulation performance, such as plastic, Plastic, resin, etc. The inside of the box / insulation box 1 is further provided with a heat insulation box 2, and the t...

no. 2 example

[0056] The second embodiment of the present invention provides a lithium battery heat preservation method. This method uses the lithium battery heat preservation device in the first embodiment. When the lithium battery or lithium battery pack needs to be used in an extreme temperature environment, first open the insulating casing 1 The manual main switch SW on the box cover makes the temperature control circuit start to work, at this time the LED indicator lights up; then set the temperature limit point of the temperature control automatic switch module Kt, the temperature limit point can be set to one or more, For example, it is set to 5°C and 30°C, and the normal working temperature is between 5°C and 30°C.

[0057] When the temperature detection module Rt detects that the temperature of the lithium battery is higher than 30°C, the temperature control automatic switch module Kt automatically controls the thermoelectric cooling sheet in the temperature control device 3 in the ...

no. 3 example

[0062] The second embodiment of the present invention provides a lithium battery heat preservation method. The method uses the lithium battery heat preservation device in the first embodiment. The temperature limit point of this method can be set to more, for example, the first low temperature threshold is set to 5°C. and the second low temperature threshold of 0°C, the first high temperature threshold of 30°C and the second high temperature threshold of 35°C, a comparator and a control chip are also arranged in the temperature control circuit. When the manual main switch SW on the cover of the insulating box 1 is turned on, the temperature control circuit starts to work, and the LED indicator lights up at this time; when the temperature detection module Rt detects that the temperature of the lithium battery is higher than the first high temperature threshold of 30°C, The temperature control automatic switch module Kt automatically controls the thermoelectric cooling sheet in t...

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Abstract

The invention discloses a lithium-ion battery heat insulation device and a control method thereof. The heat insulation device comprises an insulation box for containing a lithium-ion battery, and a temperature control circuit of which the power is supplied by the lithium-ion battery and which is used for controlling the ambient temperature around the lithium-ion battery; and the temperature control circuit is arranged in the insulation box. The temperature control circuit comprises a temperature detection module, an automatic temperature control switch module and a temperature controlling device; the temperature detection module is connected with the automatic temperature control switch module; and the automatic temperature control switch module is serially connected with the temperature control device. The invention solves the problem that an existing lithium-ion battery is seriously restricted by the ambient temperature when being used, so that an ordinary lithium-ion battery can be used normally not only at room temperature but also in cold environment and at high temperature, and the invention has the advantages of simple structure, easiness in manufacturing, convenience in use and good adaptability.

Description

technical field [0001] The present invention relates to a heat preservation device, and more specifically, to a heat preservation device for a lithium battery and a control method for controlling the lithium battery to work in a predetermined working temperature range. Background technique [0002] Lithium battery is a new generation of energy storage power supply. It is made of lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution. It is widely used in various current battery-powered products and equipment, especially in handheld electronic devices and electric vehicles. Lithium battery is the power supply with the most practical value. [0003] Among all environmental factors, temperature has the greatest impact on the charge and discharge performance of lithium batteries. The electrochemical reactions occurring at the electrode / electrolyte interface are related to the ambient temperature. The electrode / electrolyte inte...

Claims

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Application Information

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IPC IPC(8): H01M10/50H01M10/635
CPCY02E60/12Y02E60/10
Inventor 周兵
Owner DONGGUAN LARGE ELECTRONICS CO LTD
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