Unlock instant, AI-driven research and patent intelligence for your innovation.

Battery temperature control method and assembly

A battery and component technology, applied in the field of obtaining and maintaining ideal battery operating temperature, can solve problems such as resistance increase

Inactive Publication Date: 2011-05-18
GM GLOBAL TECH OPERATIONS LLC
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, approaching its abnormal temperature, even a slight rise in the temperature of the component, will cause a sharp increase in the resistance

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 temperature control method and assembly
  • Battery temperature control method and assembly
  • Battery temperature control method and assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The embodiments described below are merely exemplary in nature and are in no way intended to limit the invention, its application or uses.

[0055] The battery temperature control components used to achieve and maintain the ideal battery operating temperature are shown approximately at 10 on figure 1 and 2 . Such as figure 1 As shown, the assembly 10 includes a battery 12 which may include a plurality of battery cells 14 , 15 . Assembly 10 also includes a heater 16 positioned to heat battery 12 . The heater includes a positive temperature coefficient (PTC) resistive element 18 arranged at a respective location adjacent to a respective battery cell 14, 15 to heat the cell when power is supplied to the PTC resistive element 18 from a power source 19 .

[0056] Each PTC resistive element 18 may be a PTC film that may be directly attached to the battery cells 14, 15 by printing or other means known in the art for attaching the PTC film to a surface. The PTC heater fil...

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

An assembly (10) for achieving and maintaining a desired battery operating temperature. A positive thermal coefficient (PTC) resistive element (18) is disposed adjacent a battery (12) in a position to heat the battery.

Description

technical field [0001] The field to which this disclosure generally pertains includes methods and assemblies for obtaining and maintaining ideal battery operating temperatures. Background technique [0002] High voltage (HV) lithium-ion batteries can be used in automotive fuel cell applications as well as in automotive hybrid vehicle applications. The HV lithium-ion battery consists of several lithium-ion battery cells connected in series. These Li-ion cells can have a prismatic shape (such as a pouch) and utilize liquid or polymer electrolytes. Batteries comprising lithium-ion polymer cells are known to have higher energy densities than other lithium batteries, but are also known to suffer significant performance degradation at low temperatures, which is typical for lithium-ion batteries. Performance degradation occurs at low temperatures because of the rapid increase in internal resistance, and also because the charge current must be dropped dramatically to sub-zero temp...

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): H01M10/50
CPCH01M2220/20Y02T90/32H01M2200/108Y02E60/12H01M10/5026H01M10/5016H01M10/0525H01M10/5063H01M10/486Y02E60/50H01M10/5006H01M10/4207H01M16/006H01M2250/20Y02E60/122H01M10/625H01M10/615H01M10/637H01M10/6561Y02E60/10Y02T90/40
Inventor S.利恩坎普H.梅特拉赫
Owner GM GLOBAL TECH OPERATIONS LLC