Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
NTT DoCoMo enhances prototype micro fuel cell for FOMA handsets
Posted on 6-Jul-2005 22:00 | Tags Filed under: News


NTT DoCoMo enhances prototype micro fuel cell for FOMA handsets
NTT DoCoMo, Inc. has worked with Fujitsu Laboratories Ltd to develop an improved prototype methanol fuel cell for 3G FOMA handsets. The new prototype enables eight hours of continuous talk time, three times the capacity of the existing prototype, while weighing the same 190g. The new device is expected to greatly extend usage time once it goes into commercial production.

The companies improved the capacity by increasing the methanol concentration from 30% to over 99% and developing a method of recycling the generated water. DoCoMo unveiled a prototype micro fuel cell using methanol as an inexpensive source of fuel back in September 2004 to meet user demands for more convenient handsets with greater power capacity and reduced environmental impact.

Power consumption demands are rising as FOMA users take advantage of new services and handset features such as videophone and flat-rate monthly billing for data services such as i-motion and i-appli. In addition to its work on micro fuel cells, DoCoMo is trying to increase the capacity of its lithium-ion batteries, the most commonly used battery in handsets today.

Further work on the prototype, a cradle-shaped device, is expected to be completed by the end of March 2006.









comments powered by Disqus


Trending now »

Hot discussions in our forums right now:

What is the New Cable Going to Mean for NZ?
Created by Pumpedd, last reply by blakamin on 20-Jan-2018 17:31 (34 replies)
Pages... 2 3


CGA - Faulty New Laptop
Created by ShiBoyd92, last reply by Oblivian on 19-Jan-2018 16:22 (32 replies)
Pages... 2 3


Getting asked for Money/Food
Created by Starscream122, last reply by Rikkitic on 19-Jan-2018 10:32 (82 replies)
Pages... 4 5 6


Have any Geekzone members had an Ancestry DNA test?
Created by Linux, last reply by MurrayM on 17-Jan-2018 13:53 (50 replies)
Pages... 2 3 4


Debt Consolidation
Created by networkn, last reply by tdgeek on 19-Jan-2018 15:22 (126 replies)
Pages... 7 8 9


Best place & price to get higher end car tyres? (Michelin/GoodYear etc)
Created by Item, last reply by martyyn on 19-Jan-2018 15:33 (43 replies)
Pages... 2 3


Slingshot drops gig prices to $99
Created by howdystranger, last reply by myfullflavour on 19-Jan-2018 10:59 (29 replies)
Pages... 2


HP LaserJet 1020 toner refiller
Created by quickymart, last reply by quickymart on 19-Jan-2018 17:00 (13 replies)