Batteries with phase change materials

A phase change material and phase change technology, applied in the field of battery packs, can solve problems such as lack of rapid heat dissipation

Inactive Publication Date: 2015-09-09
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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Embodiment Construction

[0038] 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.

[0039] 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.

[0040] 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...

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Abstract

The battery pack (10) has a battery cell (35). A compressible insulator plate (45) arranged beside the battery cell has phase change material. The liquid phase of the phase change material is changed to solid phase at a temperature in 0-40[deg] C. An independent claim is included for method for controlling temperature of battery pack.

Description

[0001] This application is a divisional application of the application dated July 7, 2011, the application number is 201110242038.6, and the name is "battery with phase change material". [0002] Cross References to Related Applications [0003] This application claims priority to US Provisional Application No. 61 / 362,058, filed July 7, 2010. technical field [0004] 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 [0005] 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 potassium-ion batteries in vehicles lack the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/615H01M10/617H01M10/625H01M10/647H01M10/653H01M10/6567
CPCH01M10/5016H01M10/613H01M10/653H01M10/615H01M10/6567H01M10/5004H01M10/504H01M10/647H01M10/5006H01M10/5075H01M10/5032H01M10/625H01M2220/20Y02E60/10Y02P70/50
Inventor J.杨S.蔡
Owner GM GLOBAL TECH OPERATIONS LLC
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