Battery self-heating method and device

A self-heating and battery technology, applied in the direction of secondary batteries, battery temperature control, circuits, etc., can solve problems such as difficult to carry out, and achieve the effect of convenient use
CN110336099AActive Publication Date: 2019-10-15BEIJING JINGWEI HIRAIN TECH CO INC
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING JINGWEI HIRAIN TECH CO INC
Publication Date
2019-10-15

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Abstract

The invention discloses a battery self-heating method and device. The device comprises a battery, a charge pump and a controller. The charge pump can be controlled to be charged or discharged. The controller, when the operating status information of the battery indicates that the battery is required to be self-heated, instructs the charge pump to be alternately charged and discharged in order to alternately discharge and charge the battery to generate heat to achieve self-heating. The battery self-heating method and device disclosed in the embodiment of the present invention can automaticallyinstruct the charge pump to be alternately charged and discharged in the event of excessively low battery temperature, so that the battery is correspondingly discharged and charged. Since the batteryhas internal resistance, the charging and discharging processes can cause the battery to generate heat and to achieve a self-heating effect. The battery self-heating method does not need external source-containing equipment, can be self-heated anytime anywhere as needed, and greatly facilitates the use.
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Description

technical field

[0001] The present invention relates to battery management technology, more specifically, to a battery self-heating method and device. Background technique

[0002] As the energy supply device of new energy vehicles, battery is of great significance to promote the development of new energy vehicle technology because of its stable and reliable operation. In general, the performance of batteries will drop significantly in low temperature environments. In order to ensure the normal use of the battery at low temperature, it is necessary to heat the battery to reach a suitable working temperature range.

[0003] At present, one way to heat the battery is to load the battery with an alternating current, so that the battery generates heat under the action of the alternating current, thereby achieving a self-heating effect. However, this method of using AC current to self-heat the battery requires an external source-containing device to generate AC current, which i...

Claims

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