On Thu, 27 Sep 2018 08:12:09 -0700, moshe.braner wrote:

On Thursday, September 27, 2018 at 10:06:46 AM UTC-4, son_of_flubber
wrote:
https://www.nytimes.com/2018/09/26/b...ironment/zinc-
battery-solar-power.html

If it is as "simple" as claimed, why is the circuit board (seen in the
photos in the article) so complicated? Also, this has been in
development for some years, so clearly there are some significant
obstacles (see he
https://en.wikipedia.org/wiki/
Zinc%E2%80%93air_battery#Secondary_%28rechargeable %29
). If they've solved them, cool!

I notice the article doesn't mention the energy density, capacity or
charge/discharge rates of that battery. Without this info we can't know
whether this technology is only useful for powering lightbulbs, radio
repeaters etc. or if it has enough grunt to run a car or an FES system.

In this the NY Times is, little better than New Scientist, which
periodically talks up some doctoral student's new, lab-scale battery
technology that, thesis written, is never heard of again.


--
Martin | martin at
Gregorie | gregorie dot org