Lithium ion battery pack heat management device based on PTC resistance tape heating

A lithium-ion battery pack, lithium-ion battery technology, applied in secondary batteries, circuits, electrical components, etc., can solve the problems of poor integration of heating and heat dissipation, low heat transfer efficiency, potential electrical safety hazards, etc., and achieves simple structure and configuration. Flexible, highly integrated heating and cooling effects

Active Publication Date: 2014-09-10
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned battery thermal management device adopts forced air cooling for heat dissipation and electric heating for heating, but there are problems such as difficulty in heating and power supply of the battery pack, compl

Method used

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  • Lithium ion battery pack heat management device based on PTC resistance tape heating
  • Lithium ion battery pack heat management device based on PTC resistance tape heating
  • Lithium ion battery pack heat management device based on PTC resistance tape heating

Examples

Experimental program
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Embodiment Construction

[0022] See attached figure 1 , a lithium-ion battery thermal management device based on PTC resistance band heating, which includes: power distribution unit 2, PTC resistance band 3, aluminum plate 5, temperature acquisition unit 6, fan 7, battery slave control unit 8 and battery master control unit 9 ;

[0023] The power distribution unit 2 controls the on-off of the heating power supply of the PTC resistance band 3 according to the management signal of the battery main control unit 9;

[0024] See attached figure 2 , the aluminum plates 5 are provided with parallel linear slots, multiple identical aluminum plates 5 are arranged side by side, and a lithium-ion battery 4 is arranged between adjacent aluminum plates 5, and the aluminum plate 5 and the lithium-ion battery 4 have the largest surface area side Fitting, the linear groove is parallel to the largest surface area side of the lithium-ion battery 4; in order to further reduce the volume of the heating device, only on...

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PUM

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Abstract

The invention relates to a battery heat management device, in particular to a lithium ion battery pack heat management device based on PTC resistance tape heating. According to the technical scheme, aluminum sheets (5) are respectively provided a plurality of grooves and are attached to the sides, with the largest superficial area, of lithium ion batteries (4), PTC resistance tapes (3) are embedded into the aluminum sheets (5) and wound around the surfaces of the lithium ion batteries (4), temperature acquisition units (6) are arranged on the single lithium ion batteries (4) to acquire temperature and report acquired temperature information to a battery slave control unit (8), and a battery main control unit (9) receives the temperature information reported by the battery slave control unit (8) to manage a power distribution unit (2) or issue a control signal of starting a fan (7) to the battery slave control unit (8). According to the lithium ion battery pack heat management device, the heating power can be conveniently adjusted, and the heating and heat dissipation integration level is high.

Description

technical field [0001] The invention relates to a thermal management device for a battery, in particular to a thermal management device for a lithium-ion battery pack. Background technique [0002] With the development of electric vehicles, batteries, as the power source of electric vehicles, have achieved unprecedented development. Among all kinds of power batteries, lithium-ion power batteries have the advantages of high energy density and long cycle life, and are widely used in electric vehicles. [0003] However, the temperature adaptability of existing lithium-ion power batteries cannot meet the requirements of electric vehicles. In a low-temperature environment, the internal resistance of the lithium-ion power battery increases, and the charging and discharging performance of the battery will be greatly reduced, which will affect the performance of the electric vehicle. The internal resistance of the battery will increase and the inconsistency will increase. The capa...

Claims

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Application Information

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IPC IPC(8): H01M10/637H01M10/625H01M10/635H01M10/6563
CPCY02E60/10
Inventor 李军求孙逢春张承宁檀斐
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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