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

New Breed of Lithium Batteries

NO RATINGS
1 saves
< Previous Page 2 / 2
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 2/2
Beth Stackpole
User Rank
Blogger
Re: Future capacity?
Beth Stackpole   7/21/2011 3:41:57 PM
NO RATINGS
Is there some kind of Moore's law governing capacity in batteries as there is in processor design? Perhaps a technology that's the equivalent of multi-core for batteries? It would seem there would have to be as devices get smaller malland ser and as as people become ever more reliant on them on a 24/7 cycle. I don't see that demand dissipating any time soon.

Ivan Kirkpatrick
User Rank
Platinum
Thermal Management
Ivan Kirkpatrick   7/20/2011 1:52:09 PM
NO RATINGS
The problem before was in cotnrolling the batteries themal characteristics.  Sometimes if the battery was being discharged too rapidly the temperature rose and created the issues already noted.  Smae thing can happen when charging the batteries.  I think the solution was in the modification of the chemistry involved.

In terms of energy storage the total energy stored is getting interesting.  And any uncontrolled release of that energy has to be dealt with in a safe manner.  consider a stick of dynamite.  I am not sure exactly how much energy it stores but when it is released suddenly it has dramatic effects.  If that same energy could be controlled and released gradually in the form of electric current it would make a fine storage device but probably not rechargeable.

If one had a Lithium-Ion type battery with the same energy storage potential as a comparable size stick of dynamite it would certainly warrant very careful attention to catastrophic failure modes. 

As I recall from chemistry class, the most energetic chemical reaction is the conversion of H to H2.  That is Monatomic Hydrogen binding with another free Hydrogen into diatomic Hydrogen, H2.  I believe it also liberates an electron.  Probably not possible to make a battery out of it.

Douglas Smock
User Rank
Platinum
Safety Concerns
Douglas Smock   7/20/2011 10:24:58 AM
NO RATINGS
What are the safety issues with the laminate-style lithium polymer batteries? It seemed that there was a lot of buzz a couple years ago about potential fires or even small explosions with lithium batteries, but I don't hear much about it anymore. Are these issues addressed in the polymer technology, laminate constructions or just in more robust housings? (Or not at all.)

 

 

Alexander Wolfe
User Rank
Blogger
Future capacity?
Alexander Wolfe   7/20/2011 10:17:49 AM
NO RATINGS
You raised the big battery elephant in the room question at the end, Chuck, about capacity. Will capacities rise to 4.2A-hr or 4.4A-hr? This of course relates directly to product weight. If capacities don't rise, eventually (soon, actually) portable devices relying on these things will hit a design wall, and the heavier devices will end up being performance-impaired.

<<  <  Page 2/2
Partner Zone
Latest Analysis
Kickstarter offers a gazillion ideas for businesses that are seeking start-up funding. The crowdfunding site also features new gadgets from companies struggling to get their product out to customers. We took a look at the gadgets currently featured and found a number of cool ideas that are seeking funding angels.
Design and manufacturing need each other -- and the engineers behind them. Donít forget that.
The US Department of Energy has unveiled an investment of up to $30 million to accelerate the development of modules and materials to drive down the cost of solar energy.
A study by the Swiss government determined the type of human errors that lead to engineering disasters and ranked those errors by percentage.
General Motorsí growing commitment to electric cars took a new turn last week, as the giant automaker said it would use EV batteries in the future to help boost its use of renewable energy.
More:Blogs|News
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Sep 12 - 16, Analytics for the IoT: A Deep Dive into Algorithms
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9 | 10


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.
Next Course June 28-30:
Sponsored by Stratasys
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service