Simple Chemical Trick To Boost Battery Efficiency 149
space_mongoose writes "Hitachi thinks that a simple chemical additive could significantly improve battery life. Alkaline batteries have a positive electrode of manganese oxide and a negative electrode of finely powdered zinc, but zinc oxide forms around these grains of zinc. Hitachi's solution is to replace the zinc with a fine powder of zinc-aluminum alloy, displacing the zinc within the zinc oxide layer making it a much better conductor."
Incremental Changes (Score:4, Insightful)
Voltage. (Score:4, Insightful)
There are many applications where 1.2V just doesn't substitute well for 1.5V.
why (Score:3, Insightful)
Re:Cost-efficiency? (Score:5, Insightful)
And battery companies don't do it because they want your batteries to run out faster, so you'll buy more...
Do you have *any* evidence for this?
I'd say the opposite is true. Battery companies *do* come out with new, higher performance models, and they provide good data about how well they perform. For example, Energizer has their e2 line of batteries, which have a longer life under some discharge conditions -- and those conditions are thoroughly documented in the data sheet.
See also continued improvements in lithium ion rechargeable technology -- in the past few years both power and energy densities have improved dramatically.
I suggest you do some research into the current state of the art before claiming the battery companies just sit on technology so you'll buy more batteries.
Re:Costs? (Score:5, Insightful)
Re:Voltage. (Score:2, Insightful)
Battery voltage is determined by its chemistry.. So unfortunately not possible!
Re:Costs? (Score:1, Insightful)
Where are you at? In Houston, the bread I get is $1.19, up from $1.09 a year ago, and it used to be $0.99 when I was in college.
Here's a hint for you: if you have to buy a crappier product to maintain the same price (I can get $0.99 bread still, but it's 3/4 a loaf and tastes like chewing on a sponge), it's still inflation.
Re:One small step for Hitachi another big marketin (Score:3, Insightful)
I agree, but the New and Improved batteries might still be much cheaper and less hazardous [wikipedia.org].
Re:Voltage. (Score:2, Insightful)
They live in my Wii remotes and really do hold a charge waay better than normal nimhs. And as a bonus the white and blue design of the batteries makes them look like they were made for the Wii. (Seems like a missed co-branding opportunity.)
Re:Voltage. (Score:3, Insightful)
As I was reading reviews, I found that several reviewers recommended getting a nice charger. The recommended one to get is the Maha Powerex MH-C401FS. Each of the slots charges independently so you can charge any number instead of 2 or 4 at a time only, supports AA and AAA, or NiMH, it can charge in fast mode (100 minutes) or slow (5-8 hours), gives the best charge, and seems to be the gentlest on the batteries while giving the best charge, which makes it a great investment for battery purchases. It costs $40, but it looks like a great investment if it will save me that much money on disposable batteries the first year I own it.