Rapid combination application method of lithium ion battery

Abstract

According to a rapid combination application method of ae lithium ion battery, accessories such as a battery cell, a heating sheet and a battery management system which are combined are packaged in a shell to serve as a basic module, and the basic modules can be rapidly combined through a connector and a module equalizer on the shell so that the problem that the form of the current battery module is complex is solved; and complex wiring operation is not needed. By utilizing the method, various types of battery modules with various parameters can be combined, the method is suitable for scenes with various power demands, theoretically, the battery modules suitable for all power demands can be further combined by adjusting the battery core combination form of the basic module, and the cost is greatly saved. The module equalizer designed in a matched mode can heat the modules under a low-temperature condition, and equalization can be carried out in time when the states of the modules are inconsistent.

Description

technical field [0001] The invention relates to the technical field of modularized lithium-ion batteries, in particular to a method for fast series-parallel combination of lithium battery modules, and for equalization, charging, heating and other applications. Background technique [0002] With the diversification of the demand for electrical equipment using lithium batteries and the diversification of different application scenarios, new challenges have been raised for battery modules that provide suitable indicators such as voltage and capacity. In the prior art, for different types of electrical equipment, it is often necessary to match a set of battery modules specifically for them, and the battery modules between different equipment cannot be used universally, resulting in too complicated battery models and grouping modes, and complicated module design work It is difficult to omit, and the function of the battery module is relatively single. Even if the battery modules...

AI Technical Summary

Problems solved by technology

In the prior art, for different types of electrical equipment, it is often necessary to specially match a set of battery modules for them. The battery modules between different equipment cannot be used universally, resulting in too complicated battery models and grouping modes, and complicated module design work. Difficult to omit, and the function of the battery module is relatively single

Even if the same type of battery modules are designed, there is still a problem of poor consistency, and the energy loss after grouping is large

At this stage, conditions such as severe cold and severe weather have a serious impact on the overall performance of lithium battery modules. In low temperature environments, heating before use is required. Therefore, it is necessary to integrate a heating device inside the battery module, which makes the form of the battery module More complex and difficult to operate when using

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