Talk:Vanadium redox battery

From Wikipedia, the free encyclopedia

[edit] Operation section

This item is a little weak on vanadium sulphide/bromide batteries and plain bromide batteries, can anyone help out here? Also the image is a little large and I can't see to shrink it down, help would be appreciated!! Astaroth5 14:00, 10 November 2005 (UTC)

I have never heard of the vanadium sulphide/ bromide battery. Do you mean sodium sulphide/ bromide (otherwise known as polysulphide/ polyhalide) that was employed by Regenesys? Also by bromide batteries do you refer to zinc-bromide? These two systems are deserving of entries in their own rights. In addition, there exists a vanadium-polyhalide battery invented by Skyllas-Kazacos in the UNSW. ahw001 17:20, 12 March 2006

It might have been sodium sulphide/bromide, I just remember comming across a mention of a sulphide/bromide battery in the middle of an article on vanadium redox, so I assumed it was vanadium sulphide/bromide. It seems you know more about these technologies than I do, so by all means, please modify the article to correct it! Astaroth5 17:38, 12 March 2006 (UTC)

They are competitors.Lesqual 02:43, 6 October 2006 (UTC)

I removed the bit about National Power's flow battery (which was Regenesys) in the Operation section. I don't think it belongs there. Here's what is written: "It should be noted that National Power in the UK have also developed a redox flow battery, but one that is based on the use of two very different solutions, one of sodium sulphide and one of sodium bromide. While this system appears to give a higher power density it does carry additional problems as cross-contamination of the electrolytes is destructive to the battery." That really doesn't have any more relevance to VRB than any of a number of other flow battery technologies which aren't mentioned here. If it belongs anywhere, it belongs in the the "Flow battery" page. But it's also outdated. National Power became Innogy, which became RWE Innogy when it was bought by German company RWE AG, which pulled the plug on the Regenesys project, which was then, interestingly enough, sold (for a pittance) to VRB Power (a Vanadium Redox Flow battery company), ostensibly for its intellectual property and manufacturing tech. If there is any life left in Regenesys, it's hard to find on the web. If anyone knows more about it's[sic] history and current status, I'd suggest writing it up in the Flow battery article. Jfinlayson 10:14, 4 January 2007 (UTC)

[edit] External Links

I added a link to vrbpower.com a manufacturer of these types of batteries. It was removed as spam. I disagree with that. This is not exactly a well known topic and a link to one of the few big names in the field would help give some context. —The preceding unsigned comment was added by 149.99.63.218 (talk) 23:26, 8 March 2007 (UTC).

Wikipedia is NOT a business directory. The article is not about that company. A link to their website does not add to the enclopedic[sic] content and is not appropriate per the external links guidelines. VRB Power Systems Inc. spammed before, and their links were removed, not only by me. Interesting that only 6 days after, a corporate performance training company, also Canadian, inserts the same links again. Femto 13:03, 9 March 2007 (UTC)

[edit] why vanadium?

What about chromium and manganese? -lysdexia 03:10, 24 September 2007 (UTC)