HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
News
Electronics & Test

NTSB: Short Circuit Caused 787 Battery Fire

NO RATINGS
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 5/5
richnass
User Rank
Blogger
Re: Cause or Effect
richnass   2/12/2013 11:01:31 AM
NO RATINGS
tekochip, if I understand where you are going, is it the blame of the battery itself, or the electronics surrounding the pack. I'd be surprised if anyone takes "credit" for this mishap.

tekochip
User Rank
Platinum
Re: Cause or Effect
tekochip   2/12/2013 10:00:30 AM
NO RATINGS
I understand that, but did the cell fail from being overheated, or did it become hot because it had failed?  The folks at Tesla and others have said that this type of pack requires active cooling.  If that's true will an overheated cell fail by shorting, or was the cell poorly constructed, shorted and then caused the thermal runaway?

g_ost
User Rank
Gold
Re: Cause or Effect
g_ost   2/12/2013 9:37:37 AM
NO RATINGS

G-Yuasa at NASA Aerospace Battery Workshop 2011/November 15, 2011

https://batteryworkshop.msfc.nasa.gov/presentations/04_Qualification%20of%20GS%20Yuasa%20Large%20Format%20Li-ion%20Cells%20for%20Space.pdf

the cell presented is not the one from 787 but the technology should be similar.

The 787 battery pack has 8 cells serial hard connected. The cells can not be individual switched off in case of failure. The damaged cell still getting power from the good cells and aggravate the issue.

tekochip
User Rank
Platinum
Cause or Effect
tekochip   2/12/2013 8:29:25 AM
The classic question.  Was it a manufacturing problem in the battery pack that caused the cell to short or did the pack overheat and then a cell failed, as so many people looking from the outside have suggested?

<<  <  Page 5/5
Partner Zone
Latest Analysis
If a major catastrophe strikes your area, will you be prepared? Do you know how to modify the tech you've already got or MacGyver what you need to fit your own situation? A free, five-day Continuing Education Center course starting April 6 will show you how.
EDN and EETimes are welcoming nominations for their ACE (Annual Creativity in Electronics) Awards.
Simulation is no longer reserved for large automotive and aerospace companies. Even small companies in the life sciences are now benefiting from simulation.
The Amazon Picking Challenge wants contestants to push the next step of warehouse automation.
NanoSteel Co., which develops high-performance steel alloys, began producing steel powders for additive manufacturing (AM) last year and now supplies them commercially for freeform laser deposition and laser powder bed fusion processes.
More:Blogs|News
Design News Webinar Series
2/25/2015 11:00 a.m. California / 2:00 p.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
12/10/2014 8:00 a.m. California / 11:00 a.m. New York
3/31/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Mar 30 - Apr3, Getting Hands-On with Cypress’ PSoC
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  67


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service