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New CHAdeMO and CEC charging connection revealed

The first images have been released of the new standard charging plug jointly developed by the China Electricity Council (CEC) and the CHAdeMO Association. The new charging standard ChaoJi should enable outputs of up to 900 kW.

The prototype of the new charging plug was presented at the general assembly of the CHAdeMO Association. The new charging standard is to be released in 2020 and bears the working title ChaoJi. The connection is designed for 900 amperes and 1,000 volts to enable the required charging capacity.

Operating under CHAdeMO communication protocol, CHAdeMO 3.0 is the first publication of the next-generation ultra-high-power charging standard, being co-developed by China Electricity Council (CEC) and CHAdeMO Association with the working name “ChaoJi.” The Chinese version, operating under the GB/T communication protocol, is also planned to be released next year.

This latest version of CHAdeMO protocol enables DC charging with the power over 500kW (maximum current 600A), while ensuring the connector to be light and compact with a smaller diameter cable, thanks to the liquid-cooling technology as well as to the removal of locking mechanism from the connector to the vehicle side. Backward compatibility of the CHAdeMO 3.0-compliant vehicles with the existing DC fast charging standards (CHAdeMO, GB/T, and possibly CCS) is ensured; in other words, today’s CHAdeMO chargers can feed power to both the current EVs as well as the future EVs via an adapter or with a multi-standard charger.

Started as a bi-lateral project, ChaoJi has developed into an international collaboration forum, mobilising expertise and market experience of key players from Europe, Asia, North America, and Oceania. India is expected to join the team sometime soon, and governments and companies form South Korea and South-eastern Asian countries have also expressed their strong interests.

Japan and China have agreed to continue working together on the technical development and to promote this next-generation charging technology through further technical demonstration events and the trial deployment of the new chargers.

The testing requirements for CHAdeMO 3.0 specification are expected to be issued within a year. The first ChaoJi EVs will be likely commercial vehicles and expected to be launched in the market as early as 2021, followed by other types of vehicles including passenger EVs.