Power battery

A power battery and cell technology, applied in batteries, secondary batteries, battery pack components, etc., can solve the problems of battery assembly ratio changes, battery performance degradation, etc., to reduce thickness, inhibit expansion, and increase tightness. Effect

Inactive Publication Date: 2014-03-19
奇瑞新能源汽车股份有限公司
View PDF9 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a power battery, which is used to solve the problem of the power battery in the prior art that the assembly ratio of the battery changes due to the influence of battery expansion, and further causes the performance of the battery to decline

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
  • Power battery
  • Power battery
  • Power battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the power battery provided by the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] The invention provides a power battery to improve the change of the assembly ratio caused by the expansion of the battery, effectively control the assembly ratio, and improve the service performance of the battery. In the embodiment of the present invention, it is described that the power battery is a lithium-ion power battery as an example. In addition, the power battery may also be other power batteries such as a nickel-metal hydride power battery.

[0035] The embodiment of the present invention provides a lithium-ion power battery, please refer to figure 1 , is a schematic structural diagram of a lithium-ion power battery provided by an embodiment of the present invention. Such as figure 1 As show...

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

No PUM Login to view more

Abstract

The invention discloses a power battery. The power battery comprises a cell and a shell surrounding the outside of the cell; the power battery further comprises an elastic plate which is arranged between the cell and the shell, due to the adoption of the elastic plate, variable tension exists between the cell and the shell, so as to adjust the distance between a positive pole piece and a negative pole piece in the cell. According to the power battery, due to the adoption of the elastic plate, the tightness in the battery can be adjusted in time according to the actual charge and discharge situations, so as to effectively improve the situation of changed assembling ratios caused by the expansion of the battery, and therefore, the usability of the battery is improved. At the same time, due to the effective control to the assembling ratio, the thickness of the shell when the battery is at a discharge peak value can be reduced, and thus the size of the battery is controlled effectively.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a power battery. Background technique [0002] With the increasing improvement of technology, the popularization of pure electric vehicles has huge potential business opportunities, which puts forward higher requirements for large-capacity vehicle-mounted power batteries, and its performance, especially the internal energy utilization of batteries, plays an important role . [0003] Battery structure Common batteries are divided into sealed batteries and open batteries according to the opening method. For lithium-ion power batteries, they are sealed batteries. With the thinning and lightening of electronic products, it is very important to rationally design the battery assembly ratio according to the needs and space of electrical equipment. At the same time, the battery assembly ratio directly affects the performance of the battery. [0004] For lithium-ion power batteries, i...

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): H01M10/0525H01M10/058H01M2/10H01M50/244H01M50/249
CPCY02E60/122H01M10/0525H01M10/058H01M2220/20H01M50/10Y02E60/10Y02P70/50
Inventor 丁晓雅韩友国
Owner 奇瑞新能源汽车股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap