HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
REGISTER   |   LOGIN   |   HELP
Blogs
Blog

Micro-Sized Battery Promises to Deliver Power That Is Anything But

NO RATINGS
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 2/3  >  >>
far911
User Rank
Silver
Re:Murphy's Law
far911   5/31/2013 3:16:01 PM
NO RATINGS
At this point, it doesn't matter how long the battery can last, but how long it can hold its charge capacity over a period of usage. It's important to maximize the number of charge cycles the battery can offer so that people don't have to replace their batteries very often. 

Amclaussen
User Rank
Platinum
Re:Murphy's Law
Amclaussen   5/31/2013 2:34:39 PM
NO RATINGS
I was trying to overemphasize that...  as a funny comment, as in: "Murphy came up short..."

But on the serious side, I frequently find inexperienced engineers tend to understimate the power of Murphy's Law.  And NOBODY is free from it.

At my home shop, I have dedicated an entire wall to Murphy's memory, writing in large, clearly readable letter sizes the famous corolaries of that infamous law, along with a right hand side space, where I put a clean slate to write down every goof I do.  The other day I was finishing an Auto transmision fluid change and flushing, and had hand threaded 13 of the 14 screws that hold the transmission pan to the transmission body, happily singing "I'm almost done, tra la la..." when I noticed a little O'ring on the floor, almost laughing at me; I had forgotten to place it on the filter inside the pan, and now I had to take out all the pan screws, remove the pan (already stuck with silicone sealer, guaranteeing a sticky mess), and the filter.  That proved Murphy is still active! ;-)

Ann R. Thryft
User Rank
Blogger
Re:Murphy's Law
Ann R. Thryft   5/31/2013 12:35:58 PM
NO RATINGS
Hmmm, so if Murphy's law says something always goes wrong and that's an optimistic statement, that means the number of things going wrong exceeds the number of things that happen in the first place which could go wrong. Can you explain the math? :) Or did I miss something?



NadineJ
User Rank
Platinum
Re: Liquid metal
NadineJ   5/31/2013 11:13:02 AM
NO RATINGS
Agreed.  We seem to moving in a poor direction towards battery innovation.  But, a little optimisim helps.

a.saji
User Rank
Silver
Re: Well said Cabe.
a.saji   5/31/2013 1:14:16 AM
NO RATINGS
@watashi: Im not sure if its practical since the battery power is designed based on the usage not on the time frame. So the more you use the quicker it dies.   

SiliconGraybeard
User Rank
Silver
Wait - That Can't Be Right??
SiliconGraybeard   5/30/2013 6:14:28 PM
Wait - that can't be right, can it? "30 times farther"?

RF requires 3 dB more power to go twice the distance. 30 times farther is close to 5 doublings or 2^5. 30 dB more power is 1000x the power.

Amclaussen
User Rank
Platinum
Re:Murphy's Law
Amclaussen   5/30/2013 2:41:48 PM
NO RATINGS
EXACTLY: I cannot find the battery charger for my video camera, that I seldom use.

Murphy was right of course, but he was an optimist too.

Watashi
User Rank
Platinum
Re: Well said Cabe.
Watashi   5/30/2013 2:15:20 PM
NO RATINGS
How about a smart phone that only needs charged once every couple of months!

But, I'd probably just end up losing the charger if I needed it that infrequently.

Ann R. Thryft
User Rank
Blogger
Re: Liquid metal
Ann R. Thryft   5/30/2013 1:01:27 PM
NO RATINGS
Elizabeth, I echo your hope. I've seen so many new battery technologies proposed or introduced over the last few decades without turning into a new trend in battery design that I don't get as excited as I used to. Let's hope this one is truly different.

Amclaussen
User Rank
Platinum
Well said Cabe.
Amclaussen   5/30/2013 11:27:55 AM
NO RATINGS
Article says: "there is a general tradeoff when designing for battery capability -- either you get a high-capacity, low-power battery, or, a high-power, low-capacity battery..." Well said. Up to now, that has been almost a law! Let's see how this subject evolves in the near future (I hope!). I dream of a set of powerful electric hand tools powered by still more powerful, compact and lightweight batteries that can be recharged in a couple of minutes. Present day LiIon's are a step above NiMetal, which were only a moderate improvment over the NiCads.

Amclaussen.

<<  <  Page 2/3  >  >>
Partner Zone
More Blogs
These are the toys that inspired budding engineers to try out sublime designs, create miniature structures, and experiment with bizarre contraptions using sets that could be torn down and reconstructed over and over.
PowerStream is deploying the microgrid at its headquarters to demonstrate how people can generate and distribute their own energy and make their homes and businesses more sustainable through renewables.
Printrbot unveils its all-metal Printrbot Simple, bringing durability to low-cost 3D printers.
Today's robots should be respected, and humans should be wary of their growing skills and sophistication. Quite simply, robots are better than us in a lot of ways. Here are 10 of them.
Product design is changing with advances in technology and outsourced manufacturing. The Art of Product Design spells out the future of design engineering.
Design News Webinar Series
3/27/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
2/27/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
12/18/2013 Available On Demand
11/20/2013 Available On Demand
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Apr 21 - 25, Creating & Testing Your First RTOS Application Using MQX
SEMESTERS: 1  |  2  |  3  |  4  |  5


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 Class: April 29 - Day 1
Sponsored by maxon precision motors
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service