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

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

Experimental program
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Example

[0047] First embodiment

[0048] Figure 1~2 The first embodiment of the present invention is shown. The lithium battery heat preservation device in this embodiment includes an insulating housing 1 for placing lithium batteries, a heat preservation box 2 provided in the insulating housing 1, and a heat preservation box 2 The temperature control circuit of the lithium battery and the temperature adjustment device 3 is also provided in the insulating housing 1. The temperature control circuit is powered by the lithium battery and used to automatically control the ambient temperature of the lithium battery.

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

Example

[0055] Second embodiment

[0056] 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. When the lithium battery or lithium battery pack needs to be used in an extreme temperature environment, the insulating housing 1 is first opened The manual master switch SW on the lid of the box makes the temperature control circuit work, and the LED indicator lights up at this time; 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, set to 5°C and 30°C, where 5°C to 30°C is the normal operating temperature.

[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 fins in the temperature contro...

Example

[0061] The third embodiment

[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 method temperature limit points can be set to more, for example, the first low temperature threshold is 5°C. In addition to 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 provided in the temperature control circuit. When the manual switch SW on the cover of the insulating box 1 is opened, 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 30°C, The temperature control automatic switch module Kt automatically controls the thermoelectric coo...

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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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