(2) Briefing: Batteries l Electrifying Everything. The battery industry has a world-changing ambition. Can it achieve them? Economist, Aug 12, 2017
https://www.economist.com/news/b ... costs-plummet-after
Quote:
"Though Leafs [Leaf is the name of Nissan electric car] are the world's biggest-selling electric vehicle * * * Nissan has so far lost money on every Leaf it has made.
"Many forecasters reckon that the lifetime costs of owning and driving an electric car will be comparable to those for a fuel burner within a few years
"The first such [lithium-ion] batteries went on sale just 26 years ago [1991], in Sony's CCD-TR1 camcorder. The product was a hit: the batteries even more so, spreading to computers, phones, cordless power tools, e-cigarettes and beyond.
"The top five manufacturers [of lithium-ion batteries in the world]—Japan's Panasonic, South Korea's LG Chem and Samsung SDI, and China's BYD and CATL [Contemporary Amperex Technology Co, Ltd 宁德时代新能源科技股份有限公司, based in 福建省宁德市]—are ramping up capital expenditure" to increase capacity
"The fundamental operating principles of the lithium-ion battery are easily understood. When the battery is charging an electric potential pulls lithium ions into the recesses of a graphite-based electrode [anode]; when it is in use [eg, to power a device] these ions migrate back through a liquid electrolyte to a much more complex electrode made of compounds containing lithium and other metals—the cathode.
"The New York fire department remains concerned that lithium-ion batteries in buildings pose a fire hazard, however. When they [in-house batteries] are being installed, it [NYFD] keeps its [fire] engines on standby. As the externally combusting fiasco of Samsung's Galaxy Note 7 smartphones reminded the world last year, lithium-ion batteries can, if badly or over-ambitiously designed, short circuit in incendiary ways. In general, however, new materials and ceramic coatings for electrodes have made the batteries for cars very safe.
Note:
(a) The briefing, which does not deal with electric motor, is long. There is no need to read the rest.
(b) About quotation 3. "1991 – Sony and Asahi Kasei [Corp 旭化成株式会社] released the first commercial lithium-ion battery."
(i) The kanji for asahi may be either 旭 or 朝日.
(ii) in Japanese: 化成工業 chemical industry; 化成肥料 chemical fertilizer
(c) For quotation 3, see Julianne Troiano, How do Lithium Ion Batteries Work? A Nanotechnology Explainer. Sustainable Nano, Oct 15, 2013.
http://sustainable-nano.com/2013 ... ion-batteries-work/
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