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Intelligent auxiliary heating method and equipment for lithium battery and storage medium

A lithium battery, intelligent technology, applied in the direction of battery overheating protection, energy storage, secondary battery, etc., can solve the problems of low energy utilization, achieve the effect of improving performance, reducing power loss, and increasing the use time

Pending Publication Date: 2021-02-23
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the power of the heating element in the existing lithium battery preheating technology is fixed. When the power generation power of the power supply system changes, the energy utilization rate is low.

Method used

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  • Intelligent auxiliary heating method and equipment for lithium battery and storage medium
  • Intelligent auxiliary heating method and equipment for lithium battery and storage medium
  • Intelligent auxiliary heating method and equipment for lithium battery and storage medium

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] see figure 1 , the implementation of the present invention provides an intelligent auxiliary heating method for lithium batteries, including:

[0044] S1: Sensing the battery current and battery voltage of the lithium battery;

[0045] S2: Comparing the battery current with a preset current threshold to obtain a current comparison result;

[0046] S3: Comparing the battery voltage with a preset voltage threshold to obtain a voltage comparison result; ...

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Abstract

The invention discloses an intelligent auxiliary heating method and equipment for a lithium battery and a storage medium. The method comprises the steps: sensing the battery current and the battery voltage of the lithium battery ; comparing the battery current with a preset current threshold to obtain a current comparison result; comparing the battery voltage with a preset voltage threshold to obtain a voltage comparison result; and selectively controlling opening and closing of a heating film of the lithium battery according to the current comparison result and the voltage comparison result,and when the heating film is in an opening state, adjusting the level input to a power supply module of the lithium battery so as to adjust the heating power of the heating film through the power supply module. According to the method, multi-gear power adjustment of the heating film can be realized, electric quantity loss caused by the fact that the lithium battery discharges and participates in heating when the generated power is insufficient is avoided, the energy utilization rate is effectively improved, and the performance of the lithium battery in a low-temperature environment is improved.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to an intelligent auxiliary heating method, equipment and storage medium for lithium batteries. Background technique [0002] Lithium batteries are widely used in various fields because of their large specific energy, low self-discharge rate, and long cycle life. For example, in a solar power supply system, the solar panel converts light energy into electrical energy to charge the lithium battery and store energy; when the lighting conditions become poor or at night, the lithium battery will discharge to supply power to the system and load, releasing the stored energy. However, lithium batteries have requirements on the working environment temperature. When the lithium battery is charged at a temperature below 0°C, the negative electrode Li+ ions are easily precipitated in the form of metal lithium. This reaction is irreversible, and it not only consumes the Li+ ions insid...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J7/35H01M10/615H01M10/6571H02H7/18H02M3/00H02S40/38
CPCH02J7/00H02J7/35H02J7/00304H02J7/00308H02J7/00309H01M10/615H01M10/6571H02H7/18H02M3/00H02S40/38Y02E10/50Y02E70/30Y02E60/10Y02B70/10
Inventor 鞠成梅健挺
Owner TP-LINK
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