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Heating control method and system for power battery

A power battery and heating control technology, which is applied in the direction of secondary batteries, circuits, electrical components, etc., can solve problems affecting the consistency and life of the power battery system, and achieve the effect of ensuring consistency and life, high efficiency, and temperature balance

Active Publication Date: 2020-02-18
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the dynamic rate of the heating device is large, there will be a large temperature difference between the bottom and top of each cell, the cell in the middle of the power battery module and the cell at the edge of the module, and sometimes the temperature difference is even large. To 15 ~ 20 ℃, and this temperature difference will increase with the increase of the height of the power battery, thus affecting the consistency and life of the power battery system

Method used

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  • Heating control method and system for power battery
  • Heating control method and system for power battery
  • Heating control method and system for power battery

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0022] A heating control method and system for a power battery according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0023] figure 1 is a flowchart of a heating control method for a power battery according to an embodiment of the present invention. It should be noted that the heating control method of the power battery in the embodiment of the present invention can be applied to the heating control system of the power battery in the embodiment of the present in...

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Abstract

A heating control method and system for a power battery, and a storage medium. The method is applied to a heating control system for a power battery. The system comprises a power battery and a heating device used for heating the power battery. The method comprises: detecting whether a current environment of a power battery satisfies a preset heating condition; and when it is detected that the current environment of the power battery satisfies the heating condition, controlling the heating device to perform intermittent heating on the power battery.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a heating control method and system for a power battery. Background technique [0002] At present, the lithium-ion power battery in electric vehicles is charged slowly at low temperatures, and has a certain life-span damage to the power battery. Therefore, when the ambient temperature is low, it is necessary to heat the power battery. For example, when the temperature of the power battery is heated above a certain temperature (such as 5° C.), the power battery can be charged normally with a large current. [0003] In the related art, the power battery in the electric vehicle usually continuously heats the battery cells through a heating device. Wherein, the heating device is usually arranged at the bottom of the power battery, and when the electric core is heated, the heat of the heating device is transferred upward through the bottom of the power battery. However, when...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/615H01M10/625H01M10/635
CPCH01M10/615H01M10/625H01M10/635Y02E60/10
Inventor 梁枫李兴华杨重科
Owner BEIJING ELECTRIC VEHICLE