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I quote, "The higher the potassium perchorate level, the higher the heat output (nominally 200, 259, and 297 calories/gram, respectively)." Is this actually calories or kilocalories? Oil is approx. 8-9 kilocalories/gram for comparison. So the perchlorate (I assume perchorate -missing L- was a typo) is either much higher or lower. The solution is to give the answer in Joules and not mix English and metric units (calories and grams). 169.237.215.179 (talk) 23:49, 21 July 2008 (UTC)[reply]
I came to this page via a line on the page for the Paveway LGB. Do most military missiles use a thermal battery liek this? Might be worth mentioning on page. Wfoj2 (talk) 15:59, 21 September 2008 (UTC)[reply]
How about usefulness in electric cars? Would the requirement to keep charging be a problem? Could it be kept thermally insulated when not in use? —Preceding unsigned comment added by 68.165.11.43 (talk) 14:15, 2 April 2009 (UTC)[reply]
It's usefulness in electric cars is excellent for electric cars in use, and less so for cars that are infrequently used. Zebra does not discharge, ever! Though it does cool down if it isn't used or heated. This distinction is not important if the car is never used, as the charger keep the battery hot. If the combined losses in the battery in use is about 20% a day (during charging, acceleration and regenerative braking), no heating or cooling of the battery is necessary. This would be quite normal in use. If the combined losses is higher fans keep the internal temperature below 350C. This would be quite normal if the driver is fond of speed. LiFePO4 prefer cold temperatures and is cooled even when stationary, and more so when used. Other Lithium based chemistry needs even more cooling. Losses is dependent on ambient temperature and increases with temperature and use.
Fossil ICE have losses at about 60% for diesel and 70% gas, in ideal conditions. Real life losses is often more than 90% (due to no regenerative braking and other factors). Hydrogen fuel cell have losses about 75% in ideal conditions, excluding charger/electronics/engine (losses both in hydrogen generation and in the fuel cell). Hydrogen ICE have horrendous efficiency (losses both in hydrogen generation and in the ICE)
Plug to wheel efficiency:
Pump to wheel efficiency:
PolarNight (talk) 00:52, 26 November 2009 (UTC)[reply]
"loses heat at a rate of 135 W" 135 W is not a rate. 194.202.236.116 (talk) 14:12, 2 March 2009 (UTC)
Zebra does not discharge, ever. The <135 W specified in (http://web.archive.org/web/20010420221921/www.betard.co.uk/product.htm) refer to thermal dissipation. This is one of the reasons the individual cells does not go out of step, and therefore the battery does not need balancing. The 18% discharge/ day is utterly incorrect.
PolarNight (talk) 00:52, 26 November 2009 (UTC)[reply]
There appears to be some discrepancy on the origin of the ZEBRA name. This page claims its origin is Zeolite Battery Research Africa, while the Electric Automotive Association of Europe claims the acronym means "Zero Emission Battery Research Activities." Also see Braithwaite and Auxer, Ch 40 of Handbook of Batteries, 3rd ed. Is there a primary source to reference here?
How can the zebra battery be recharged.. can they directly be heated.using any source like CSP for example — Preceding unsigned comment added by 202.138.120.38 (talk) 08:25, 5 October 2011 (UTC)[reply]
In a December 2012 BBC interview, (http://www.bbc.co.uk/news/science-environment-20420557) Donald Sadoway described the basic version of his battery which used magnesium for the top layer and antimony for the bottom layer as "generation zero". He said "We now have chemistries that we're calling fourth generation, fifth generation." Maybe the heading for this section『Magnesium–antimony cells』is no longer correct? Not sure what it should be called instead.SylviaStanley (talk) 12:11, 6 December 2012 (UTC)[reply]
Under the heading Na-NiCl2 the section of SONIC reads like an advertisment blurb. Shouldn't it be edited to be more neutral in tone? Linkato1 (talk) 02:59, 1 February 2014 (UTC)[reply]
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I have given the article a bit of a rework to:
PeterEastern (talk) 21:22, 16 December 2014 (UTC)[reply]
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There is almost nothing in common (in terms of applications) between the two types. We should split the article.
Note that thermal battery is currently used for a thermal, not electrical, application. As it's not clear which of these would be primary, we probably need to disambiguate both. Andy Dingley (talk) 21:49, 5 March 2019 (UTC)[reply]
Why is this article mainly taken up with discussion of molten sodium batteries? Why do detailed descriptions of molten sodium batteries precede discussion of molten salt (NaCl) batteries in the body? MrDemeanour (talk) 09:18, 13 January 2021 (UTC)[reply]
Thanks! MrDemeanour (talk) 12:08, 17 January 2021 (UTC)[reply]
A variant suggested by "heat pack" technology is to use a cell where one component is a sodium acetate derivative in a sealed pouch. Careful chemistry would be needed here but as these routinely get to over 100 Celsius internal temperature it would be enough in a small pack to generate a thermal burst capable of liquifying selected low melting point alloys like PbBi. This would also be somewhat rechargeable as to regenerate would require heating the entire cell in its depleted state to over 100 Celsius and slowly cool then recharge at the same time in a multi-step process. Laser or sonic initiation has been suggested as a novel method. — Preceding unsigned comment added by 88.81.156.140 (talk) 16:28, 18 March 2021 (UTC)[reply]
Hello, i have noticed that the section "Liquid-metal batteries" has not been updated in several years.
For what i have seen, Ambri https://ambri.com/ has developed a calcium amtimony liquid metal battery and has reached the point to be used in real aplications, as a data center in Nevada. https://www.energy-storage.news/news/ambris-liquid-metal-battery-to-be-used-at-desert-data-centre-in-nevada
Can someone update this part? — Preceding unsigned comment added by 213.181.85.55 (talk) 16:15, 6 April 2021 (UTC)[reply]