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

Electric automobile and power battery thereof

A technology for power batteries and battery packs, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as battery thermal runaway and low safety of power batteries, and achieve the effect of improving safety

Pending Publication Date: 2019-11-22
长沙优力电驱动系统有限公司
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the temperature control module of the battery management system fails, the rising temperature of the resistance wire will bring the risk of thermal runaway to the battery, resulting in lower safety of the existing power battery

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
  • Electric automobile and power battery thereof
  • Electric automobile and power battery thereof
  • Electric automobile and power battery thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes ...

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 relates to a power battery. The power battery comprises a shell, a battery pack, a first graphene heating sheet surrounding the battery pack and a second graphene heating sheet arrangedin the battery pack, and after the first graphene heating sheet is electrified, the battery pack can be heated from outside to inside. Moreover, the first graphene heating sheet is encircled to form aring shape and coats the outer side of the battery pack, so that heat can be diffused from the periphery of the battery pack to the inside of the battery pack. The second graphene heating sheet is clamped between the adjacent battery cells and can heat the battery pack from inside to outside after being electrified. Therefore, when the power battery starts to heat, heat can be transferred from inside to outside and from outside to inside at the same time. Moreover, the first graphene heating sheet and the second graphene heating sheet heat on the whole surface, the heating area is large, andthe surface temperature distribution is balanced. Therefore, the power battery can be used for uniformly heating the internal battery cell. In addition, the invention further provides an electric automobile.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to an electric vehicle and a power battery thereof. Background technique [0002] With the continuous development of new energy vehicles, power batteries for powering electric vehicles are also widely used. At present, most power batteries are assembled into battery packs using individual batteries. In a low temperature environment, the performance of most batteries, especially the commonly used lithium-ion batteries, will drop sharply, which will reduce the discharge capacity and working voltage of the power battery, thereby limiting its use. Therefore, when the power battery is used in a low temperature environment, it needs to be heated first. [0003] At present, the common battery heating method is to cover the outer side of the battery pack with a silicone rubber heating sheet. The silicone rubber heating sheet is mainly composed of a heating resistance wire and ...

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
IPC IPC(8): H01M10/615H01M10/625H01M10/617H01M10/6554H01M10/6555H01M10/6571
CPCH01M10/615H01M10/625H01M10/617H01M10/6554H01M10/6555H01M10/6571Y02E60/10
Inventor 刘政陈安平王晓闽胡孟贤陈宗安
Owner 长沙优力电驱动系统有限公司
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