Unlock instant, AI-driven research and patent intelligence for your innovation.

Battery pack and vehicle

A technology for battery packs and battery modules, which is applied in the direction of batteries, secondary batteries, battery pack components, etc., and can solve problems such as excessive expansion and deformation of battery cells, reduced cycle life of battery cells, and lithium analysis

Inactive Publication Date: 2021-02-05
CONTEMPORARY AMPEREX TECH CO
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to resist the increase of expansion force, an end plate with a certain structural strength is generally used to avoid excessive expansion and deformation of the battery cell, which will affect the performance of the battery cell during the cycle.
At the same time, the structure of the end plate cannot exert excessive pressure on the battery cell, otherwise the battery cell is prone to lithium deposition during the charge-discharge cycle, reducing the cycle life of the battery cell

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Battery pack and vehicle
  • Battery pack and vehicle
  • Battery pack and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as any limitation of the application, its application or uses. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0057] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the sizes...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a battery pack and a vehicle. The battery pack comprises a box body which comprises a box body bottom wall and a box body side wall, wherein the box body bottom wall and the boxbody side wall form an accommodating part; a battery module which is arranged in the accommodating part and comprises a plurality of battery cells, wherein shell side walls of the battery cells comprise two first side walls oppositely arranged in the first direction and two second side walls oppositely arranged in the second direction, the area of the first side walls is greater than that of thesecond side walls, and the first direction and the second direction are parallel to the bottom wall of the box body and are perpendicular to each other; a frame structure which is arranged in the containing part and used for limiting the position of the battery module, wherein the frame structure comprises a first beam and a second beam which are located at the two ends of the battery module in the first direction respectively, the first beam and the second beam extend in the second direction and are opposite to the first side wall in the first direction, the first beam is connected with the box body in a non-detachable mode, and the second beam is detachably connected into the box body. The battery pack is beneficial to improving the safety performance and prolonging the service life.

Description

technical field [0001] The present application relates to the technical field of batteries, in particular to a battery pack and a vehicle. Background technique [0002] In the related art, a battery pack used in a vehicle includes at least one battery module, and the battery module includes a plurality of battery cells, and the battery cells are usually secondary lithium-ion batteries. The use process of the battery pack is the process of multiple charge and discharge cycles of the secondary lithium-ion battery. During the charge-discharge cycle of the battery cell, the positive and negative electrodes in the electrode assembly of the battery cell will periodically expand due to structural changes in the active material or side reactions of the battery cell. As the service life of the battery prolongs, the expansion force generated during periodic expansion will gradually increase. [0003] The hard-shell battery cells used in the battery pack are generally square in struc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/204H01M50/209H01M50/242H01M50/244H01M50/258H01M50/249H01M50/264
CPCH01M2220/20H01M50/204H01M50/209H01M50/242H01M50/244H01M50/258H01M50/249H01M50/264Y02E60/10H01M50/291H01M50/293H01M50/593H01M10/0525
Inventor 黄海华朱婷婷
Owner CONTEMPORARY AMPEREX TECH CO