Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power battery of new energy automobile

A technology for new energy vehicles and power batteries, which is applied to battery pack components, isolation of batteries from their environment, circuits, etc., and can solve problems such as power battery system failure, vibration damage, and bulging of battery shells, achieving a wide range of options, Improved consistency, easy mod effects

Pending Publication Date: 2017-09-22
江西优特汽车技术有限公司
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a large volume change cannot eliminate its negative effects in a tightly wound cylindrical battery. The most obvious is that the cycle life of the battery is difficult to achieve greater than 1000 times
In the square hard shell battery, it will also cause the battery shell to bulge, which will still affect the life of the battery and other performance improvements.
Although the soft-pack battery can make the volume change more freely, if the cushioning of the soft-pack power battery is not done well, the volume change of the battery pole piece will be limited. If the fixation of the soft-pack power battery is not done well, it will Will be damaged during the vibration process, it is difficult to have both
For a bulging power battery, in most cases the plate will be severely deformed, not only the failure of the power battery system, but also the short circuit of the battery, which is very dangerous for users

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 of new energy automobile
  • Power battery of new energy automobile
  • Power battery of new energy automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.

[0021] Such as Figure 1 to Figure 4 As shown, the present invention provides a power battery for a new energy vehicle, including a casing 1, a cover plate, a plurality of pouch batteries arranged in the casing 1, and an insulating liquid-absorbing liquid arranged between two adjacent pouch batteries The gasket, the pouch battery includes a heat-sealing film 3 and a single battery cell 2 packaged in the heat-sealing film 3 .

[0022] Such as figure 1 As shown, the single cell 2 of the pouch battery is a structure formed by sequentially laminating the positive active layer 21, the separator 23 an...

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
sizeaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a power battery of a new energy automobile. The power battery comprises a shell, multiple flexibly-packaged batteries arranged in the shell and insulating liquid-absorbing gaskets arranged between adjacent two flexibly-packaged batteries; and each flexibly-packaged battery comprises a thermal packaging film and a single cell packaged in the thermal packaging film. The power battery of the new energy automobile can satisfy volume change requirement of a battery electrode sheet and also can perform module assembling conveniently as a hard-shell battery, and combines the characteristic of long service life of a flexibly-packaged battery, the advantage of easy module assembling of the hard-shell battery and high safety; in addition, the flexibly-packaged battery cells are matched and loaded into the shell, so that the consistency of the power battery is greatly improved; and furthermore, the insulating liquid-absorbing gaskets are wide in absorbable liquid selection range, so that it is beneficial to management and design of the battery.

Description

technical field [0001] The invention belongs to the technical field of lithium ion batteries, in particular, the invention relates to a power battery of a new energy vehicle. Background technique [0002] With the increasing promotion of new energy vehicles in various countries around the world, the sales of fuel vehicles will be gradually banned from 2025 to 2030, and the technological progress of power batteries has been highly valued. Among all kinds of power batteries, lithium-ion batteries have become the mainstream choice of power batteries due to their far-leading energy density. Power batteries in the prior art mainly contain three types, cylindrical, square hard shell and soft pack batteries. During the charging and discharging process of the single cell of the power battery, both the positive pole piece and the negative pole piece are expanding and shrinking, and with the pulverization of the active material particles, the SEI film on the surface of the pole piece...

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): H01M2/10
CPCH01M50/24H01M50/20Y02E60/10
Inventor 李世明王世强胡庆军张叶鑫蒋颖宽
Owner 江西优特汽车技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com