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

Battery possessing phase change material

A phase-change material and phase-change technology, applied in the fields of batteries, secondary batteries, secondary battery manufacturing, etc., can solve problems such as lack of rapid heat dissipation

Inactive Publication Date: 2012-03-14
GM GLOBAL TECH OPERATIONS LLC
View PDF7 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current liquid-based cooling systems for lithium-ion batteries in vehicles lack the ability to dissipate heat rapidly during battery thermal runaway

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 possessing phase change material
  • Battery possessing phase change material
  • Battery possessing phase change material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] Batteries with phase change materials (PCM), such as lithium-ion batteries, can improve heating and cooling capabilities under different vehicle operating conditions. PCM can help minimize unwanted operating temperature variations, increase heating and cooling uniformity, and reduce heating and cooling requirements.

[0038] Batteries utilizing PCM are able to control temperature excursions and maintain temperature uniformity with little or no active cooling components such as fans, blowers or pumps present in air / liquid cooling systems. Thus, a compact, light-weight, energy-efficient system can be obtained with energy usage of battery life and performance over the full operating range of hybrid electric vehicles (HEV) / plug-in electric vehicles (PEV) is optimized.

[0039] The thermal performance and heat transfer enhancement methods of various PCMs are described in Kenisarin and Mahkamov, "Solar energy storage using phase change materials", Renewable and Sustainable E...

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 battery possessing a phase change material, especially, discloses a battery pack possessing a phase change material (PCM). By using the phase change material, the heating and cooling capabilities under various vehicle working states can be improved. The invention also relates to a method for controlling the temperature in the battery pack.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 61 / 362,058, filed July 7, 2010. technical field [0003] The present invention relates generally to batteries, and more particularly to batteries using phase change materials, and methods of controlling temperature in batteries using phase change materials. Background technique [0004] Most passenger vehicles are parked approximately 90% of the time. In general, the energy (discharge capacity) and power (operating voltage) of lithium-ion batteries are greatly reduced at temperatures below about -10C. At higher temperatures (above about 45C), battery life drops off significantly. Current liquid-based cooling systems for lithium-ion batteries in vehicles lack the ability to dissipate heat quickly during battery thermal runaway. Contents of the invention [0005] The present invention provides the following solutions: [0006] 1. A battery pack comp...

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): H01M10/04H01M10/50
CPCH01M2220/20H01M10/625H01M10/615H01M10/653H01M10/647H01M10/6567H01M10/613Y02E60/10Y02P70/50
Inventor J·杨S·蔡
Owner GM GLOBAL TECH OPERATIONS LLC
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