Battery partition heating method, system and equipment and storage medium

A district heating and battery technology, which is applied in the direction of secondary batteries, circuits, electrical components, etc., can solve the problems of battery cell voltage difference, affecting battery service life and safety, etc., to improve service life and safety, reduce internal The effect of temperature difference

Pending Publication Date: 2022-05-20
航天科工惯性技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the battery is charged and discharged with a large current when there is a temperature difference inside the battery, it will

Method used

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  • Battery partition heating method, system and equipment and storage medium
  • Battery partition heating method, system and equipment and storage medium
  • Battery partition heating method, system and equipment and storage medium

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Embodiment Construction

[0053] The following will clearly and completely describe the technical solutions in the embodiments herein in conjunction with the accompanying drawings in the embodiments herein. Obviously, the described embodiments are only some of the embodiments herein, not all of them. Based on the embodiments herein, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the scope of protection herein.

[0054] refer to figure 1 , in some embodiments, according to the actual environmental conditions and the difference of the inner core of the battery, the battery is divided into n partitions from the outer layer to the inner core, and each partition is in the shape of a ring. There are n heating devices R 1 ~R n , n heating devices are in one-to-one correspondence with n partitions, and there are also n switching tubes S 1 ~S n , n switching tubes correspond to n heating devices one by one, and are used to control the corre...

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Abstract

The invention provides a battery partition heating method, system and device and a storage medium, and the method comprises the steps: dividing a battery into a plurality of partitions, and judging whether each adjacent temperature difference is smaller than a temperature difference heating threshold value or not, the adjacent temperature difference being the temperature difference between the adjacent partitions of the battery; whether the temperature value of the subarea with the lowest temperature is smaller than a local heating threshold value or not is judged; and if at least one adjacent temperature difference is greater than or equal to the temperature difference heating threshold value and the temperature value of the subarea with the lowest temperature is smaller than the local heating threshold value, selectively heating the plurality of subareas of the battery until each adjacent temperature difference of the battery is smaller than the temperature difference set value. And the service life and the safety of the whole battery are improved.

Description

technical field [0001] The present invention relates to the technical field of battery temperature control devices, in particular, to a method, system, device and storage medium for heating batteries in zones. Background technique [0002] When the battery works in a low temperature environment, the capacity will drop significantly, the charge and discharge power will be limited, and there will be potential safety hazards. During the charging process of the battery, under the action of an external electric field, lithium ions are extracted from the positive electrode material, pass through the electrolyte, and enter the negative electrode material in turn to form LiC compounds. If the temperature is too low, some lithium ions will not be able to enter the negative electrode in time to form LiC compounds, thereby capturing electrons to form lithium metal, and gradually gather to form lithium dendrites. Under low temperature discharge, the activity of the active material insi...

Claims

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Application Information

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IPC IPC(8): H01M10/615H01M10/617H01M10/623H01M10/633H01M10/48
CPCH01M10/615H01M10/617H01M10/623H01M10/633H01M10/486H01M10/482Y02E60/10
Inventor 廖梦岩李敬王浩刘刚张福亮赵学荟胡立庆李侃朱配清孙景雷
Owner 航天科工惯性技术有限公司
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