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A lower-temperature [11] variant of molten-salt batteries was the development of the ZEBRA (originally, "Zeolite Battery Research Africa"; later, the "Zero Emissions Batteries Research Activity") battery in 1985, originally developed for electric vehicle applications. [12] [13] The battery uses NaNiCl 2 with Na +-beta-alumina ceramic ...
The ZEBRA battery is a type of rechargeable molten salt battery based on commonly available and low-cost materials – primarily nickel metal, the sodium and chloride from conventional table salt, as well beta-alumina solid electrolyte. It is technically known as the sodium–nickel–chloride battery, and sometimes as a sodium–metal–halide ...
Pages in category "Metal companies of South Africa" The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes. E.
South Africa is the southernmost country in Africa. It is the 25th-largest country in the world by land area, and with close to 60 million people, is the world's 24th-most populous nation. The World Bank classifies South Africa as an upper-middle-income economy, and a newly industrialised country. [1] [2] Its economy is the largest in Africa ...
Despite declining production, South Africa's gold exports were valued at US$3.8 billion in 2005. [24] As of end-2018, South Africa had a potential 6000 tonnes of reserves. [25] In July 2018, the Mineral Council of South Africa announced that 75% of mines in South Africa were now unprofitable due to the declining gold reserves. [26]
The company operates from over ten sites around South Africa collecting and processing scrap metals. [2] [3] It purchases scrap metals from factories, other industrial companies, dealers [4] and collectors. Hundreds of thousands of people in South Africa make a living collecting and delivering scrap metal to companies like SA Metal Group.
Metal halides are compounds between metals and halogens. Some, such as sodium chloride are ionic , while others such as uranium hexafluoride have considerable covalent character to their bonding. This category serves as a complement to Category:Nonmetal halides
Streetlamp with a ceramic metal halide bulb Ceramic metal halide bulb with G12 socket. A ceramic metal-halide lamp (CMH), also generically known as a ceramic discharge metal-halide (CDM) lamp, [1] is a type of metal-halide lamp that is 10–20% more efficient than the traditional quartz metal halide [2] and produces a superior color rendition (80-96 CRI).