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Battery module

A technology of battery modules and batteries, which is applied to battery components, circuits, electrical components, etc., can solve the problems of adverse effects on battery module electrical cycle performance, reduced battery module cycle performance, and lack of precise pressure regulation. Achieve the effects of improving cycle performance, pressure equalization, and avoiding displacement

Pending Publication Date: 2020-11-10
DONGGUAN POWERAMP TECH LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the use of the battery module, the volume of the battery module will expand with the charge and discharge cycle, resulting in a decrease in the cycle performance of the battery module
The commonly used solution in the industry is to pressurize the battery module, but the existing solution has a problem of pressurization balance. In the traditional pressurization method, after the battery module expands, the external pressure on its various parts is not balanced , and without precise pressure regulation, the pressure values ​​in different areas of the battery module are not the same, which has a negative impact on the electrical cycle performance of the battery module
Existing solutions also have issues with shorting the cells, or causing failure due to misalignment of the fixture

Method used

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Embodiment Construction

[0083] The following description will refer to the accompanying drawings to more fully describe the contents of the present application. Exemplary embodiments of the application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of this application to those skilled in the art. Like reference numerals designate the same or similar components.

[0084] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. Furthermore, when used herein, "comprises" and / or "comprises" or "includ...

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Abstract

The invention provides a battery module, and the battery module comprises a battery cell assembly, and a battery cell in the battery cell assembly comprises a battery cell main body part and a tab. The battery module is characterized in that the battery module further comprises a first fixing band surrounding the battery cell assembly in the thickness direction of the battery cell; a second fixingband which surrounds the battery cell assembly in the thickness direction of the battery cell; in the length direction of the battery cell, the distance between the projection position of the first fixing band and the first end of the battery cell main body part is less than or equal to L / 4, the distance between the projection position of the second fixing band and the second end of the battery cell main body part is less than or equal to L / 4, wherein L is the length of the battery cell main body part.

Description

technical field [0001] This application relates to the field of new energy, and in particular to a battery module. Background technique [0002] Battery modules are widely used in all aspects of life, and battery modules have a wide range of application scenarios. During the use of the battery module, the volume of the battery module will expand with the charge and discharge cycle, resulting in a decrease in the cycle performance of the battery module. The commonly used solution in the industry is to pressurize the battery module, but the existing solution has a problem of pressurization balance. In the traditional pressurization method, after the battery module expands, the external pressure on its various parts is not balanced , and without precise pressure regulation, the pressure values ​​in different regions of the battery module are not the same, which has a negative impact on the electrical cycle performance of the battery module. Existing solutions also have the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10
CPCY02E60/10H01M50/20
Inventor 王鹏飞周锦兵
Owner DONGGUAN POWERAMP TECH LTD
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