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Lithium ion battery pack

A lithium-ion battery and battery technology, applied in the direction of secondary batteries, battery pack parts, circuits, etc., can solve the problems of battery assembly frame not being universal and increasing manufacturing costs, and achieve modular design, assembly, and production The effect of low cost and flexible assembly

Active Publication Date: 2016-10-26
辽宁比科新能源股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The model difference of the electric vehicle battery system, for different battery systems, the battery assembly frame is not universal, and different frames must be designed according to the different combinations of batteries in production, which increases the manufacturing cost

Method used

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0031] It should be noted that among the terms used in this section to represent directions such as "front, rear", "left, right", "up, and down", the so-called "front and rear" in the drawings mean The thickness direction of the single battery cell stacking direction, that is, the X direction in the drawings; the so-called "left and right" directions in the drawings indicate along the width direction of the single battery, that is, the Y direction in the drawings; the so-called " "Up and down" in the drawings means along the height direction of the single battery, that is, the Z direction in the drawings. These terms are used for convenience of description only, and cannot be construe...

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Abstract

The invention discloses a lithium ion battery pack. The lithium ion battery pack comprises a battery box, a battery module and a battery pack electronic part are arranged in the battery box and are fixed in the battery box in the three-dimensional direction, the battery module comprises a plurality of square single cells which are superposed in a lamination manner, pressure plates positioned at two ends of the battery module, insulating plates for separating the single cells from the pressure plates, and pull bars and pull strips which are used for fixing the pressure plates and the single cells, and every single cell is fixed in the battery module in the three-dimensional direction through a corresponding single cell assembling frame. The lithium ion battery pack has the advantages of overcoming of defects existing in the prior art, strong vibration and impact resistance, no displacement problem caused by cell expansion in the use process, good heat conduction and conflux performances, simple structure, convenience in assembling and operating, realization of modular design and assembling, strong applicability and low production cost.

Description

technical field [0001] The invention relates to the technical field of lithium-ion battery packs, in particular to a battery pack composed of square lithium-ion single cells. Background technique [0002] In the context of increasingly serious global energy and environmental problems, green energy has attracted great attention, and the application of lithium-ion batteries to electric vehicles has become a research hotspot. Cell grouping is an issue that must be considered when designing electric vehicle battery systems. Due to the electrode expansion of the square lithium-ion battery during use, the volume of the battery will expand and the displacement will occur. This expansion of the battery must be limited during use to ensure safety. The working conditions of electric vehicles are complex during use, and they are faced with frequent acceleration and vibration. Therefore, it is necessary to ensure that each battery and electronic components and the vehicle body are well...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M10/613H01M10/617H01M10/655
CPCH01M10/613H01M10/617H01M10/655H01M50/20Y02E60/10
Inventor 王宏栋方振华王宏忠李飞兰海侠朱彬
Owner 辽宁比科新能源股份有限公司
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