CHAdeMO
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| Formation | 2010 |
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| Purpose | CHAdeMO Association aims to increase quick-charger installations worldwide and to standardize how to charge the vehicles. |
| Website | http://chademo.com |
CHAdeMO is the trade name of a quick charging method for battery electric vehicles delivering up to 62.5 kW of direct current (500 V, 125 A) via a special electrical connector. It is proposed as a global industry standard by an association of the same name and included in IEC 62196 as type 4. A competing standard, Combined Charging System, has support from more major auto manufacturers.
CHAdeMO is an abbreviation of "CHArge de MOve", equivalent to "move using charge" or "move by charge". The name is also a pun drawn from O cha demo ikaga desuka in Japanese, translating to English as "How about some tea?", referring to the time it would take to charge a car. CHAdeMO can charge low-range (120 km / 75miles) electric cars in less than half an hour.
CHAdeMO was formed by The Tokyo Electric Power Company, Nissan, Mitsubishi and Fuji Heavy Industries (the manufacturer of Subaru vehicles). Toyota later joined as its fifth executive member. Three of these companies have developed electric vehicles that use TEPCO's DC connector for quick charging.
Most electric vehicles (EVs) have an on-board charger that uses a rectifier circuit to transform alternating current from the electrical grid (mains AC) to direct current (DC) suitable for recharging the EV's battery pack. Cost and thermal issues limit how much power the rectifier can handle, so beyond around 240 V AC and 75 A it is better for an external charging station to deliver direct current (DC) to the vehicle's battery pack. Given these limits, most conventional charging solutions are based on either 240V/30A service in the USA and Japan, 240 V, 70 A service in Canada or the 230 V, 15 A or 3Φ, 400 V, 32 A service in Europe and Australia. (While AC charging systems have been specified with higher limits - SAE J1772-2009 has an option for 240 V, 80 A and VDE-AR-E 2623-2-2 has 3Φ, 400 V, 63 A - these charging station types have been rarely deployed in the US and only electric vehicles made by Tesla have a matching rectifier.)
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