As electric vehicles (EVs) continue to grow in popularity globally, the infrastructure supporting them is evolving rapidly. One of the most important components of this infrastructure is the EV charging standard, which ensures compatibility and efficient energy transfer between the vehicle and the charger. In Japan, the CHAdeMO standard has been at the forefront of EV charging for over a decade, establishing itself as one of the leading charging protocols worldwide.
We will explore the CHAdeMO standard, its evolution, compatibility with other charging systems, and its impact on the Japanese EV charging landscape. Additionally, we will examine Linkpower's solutions in this field and how they contribute to the growing need for efficient and reliable EV charging infrastructure.
What is the CHAdeMO Standard?
The CHAdeMO standard is a DC fast charging protocol used primarily for charging electric vehicles. Originating in Japan, the CHAdeMO standard was introduced in 2010 by the CHAdeMO Association, a group of organizations including major Japanese automakers, charging equipment manufacturers, and energy providers. The goal of CHAdeMO was to develop a universally compatible, efficient, and fast charging system for electric vehicles, especially focusing on DC charging.
The acronym CHAdeMO comes from the Japanese phrase "CHA (tea) de MO (also) OK," which translates to "Even tea is fine," indicating the convenience and ease of use that the standard aims to provide. This standard has been widely adopted across Japan and beyond, making it one of the primary charging standards globally.
Key Components of the CHAdeMO Standard
1.CHAdeMO Charging InterfaceCHAdeMO
The CHAdeMO charging interface consists of multiple pins, each serving a specific function in the charging process. The charging plug features a combination of power supply pins and communication pins, ensuring both safe power transfer and real-time communication between the charger and the vehicle.
Pin Definition: Each pin is defined for specific functions, such as carrying the charging current (DC positive and negative) or providing communication signals via CAN communication.
Internal pin interface
2.Electrical Characteristics of CHAdeMO Charging Post
The CHAdeMO standard has undergone multiple updates, enhancing its power output and supporting faster charging times. Below are the key characteristics:
- CHAdeMO 2.0 Electrical Characteristics: CHAdeMO 2.0 introduces higher charging capacities, with support for charging up to 100 kW. This version is designed for higher efficiency and faster charging times compared to the original standard.
- CHAdeMO 3.0 Electrical Characteristics: CHAdeMO 3.0 represents a significant leap, supporting up to 400 kW for ultra-fast charging. It aims to address the increasing demand for charging speed as electric vehicle ranges and battery sizes grow.
Development and Evolution of the CHAdeMO Standard
Over the years, the CHAdeMO standard has been updated to accommodate the growing demands of the electric vehicle market.
1.Standard Updates
CHAdeMO 2.0 and 3.0 represent major updates to the original standard. These updates include advancements in charging power, communication protocols, and compatibility with newer EV models. The goal is to future-proof the standard and keep up with advancements in battery technology, EV charging needs, and integration with other standards.
2.Power Update
The power update has been central to the evolution of CHAdeMO, with each new version supporting higher charging rates. For instance, CHAdeMO 2.0 allows up to 100 kW, whereas CHAdeMO 3.0 aims for 400 kW, significantly reducing charging time. This is crucial for enhancing the user experience and ensuring EVs are charged quickly and efficiently, which is essential for the growth of EV adoption.
3.High Power Roadmap
200kW protocol released in 2017, CHAdeMO protocol released, supporting charging at 100kW continuous power/150- 200kW peak power (400A x 500V).
The first high-power charger was deployed in 2018, and the first certified high-power charger has been deployed on the critical corridor route where ChaoJi Project was launched.
900kW charging protocol released in 2020 enables 350-400kW charging, completing the first charging test and demonstration of ChaoJi/CHAdeMO 3.0 (up to 600A and 1.5 kV).
CHAdeMO 3.0 (ChaoJi 2) is released in 2021, and the full specification of CHAdeMO 3.0 has been released.
2022 Ultra-ChaoJi standard starts working: charging system meets IEC 61851-23-3 standard, coupler meets IEC 63379 standard. CHAdeMO 3.0.1/ChaoJi-2 released. Proposals for superpolar charging systems and couplers will be submitted to IEC (62196-3 and 3-1; and 61851-23).
2023 CHAdeMO 3.0.1/ChaoJi-2 starts field testing in Japan, CHAdeMO 3.1/ChaoJi-2 is released and CHAdeMO 4.0/Ultra-ChaoJi development is underway.
CHAdeMO Standard Compatibility
As the electric vehicle market grows, so does the need for interoperability between different charging systems. The CHAdeMO standard is designed to work with a variety of vehicles and infrastructure, but it also faces competition from other standards, notably the CCS (Combined Charging System) and GB (Chinese) charging standards.
1.Charging Interface Compatibility
CHAdeMO, GB, and CCS use different communication protocols. CHAdeMO and GB use CAN communication (Controller Area Network), while CCS uses PLC (Power Line Communication). This difference in communication methods can create challenges in ensuring seamless interoperability between different chargers and EVs.
2.CHAdeMO and ChaoJi Compatibility
One of the recent advancements in the global standardization of EV charging is the development of the ChaoJi Charging Agreement. This standard is being developed to merge the best features of multiple global charging systems, including CHAdeMO and GB. The goal is to create a unified international standard that will enable electric vehicles to be charged worldwide using a single system. The ChaoJi agreement is seen as an important step toward a global, harmonized charging network, ensuring that EV owners can charge their vehicles wherever they go.
Integration of CHAdeMO, GB, CCS and IEC standards
solution
Linkpower's Strengths and EV Charger Solutions
At Linkpower, we are committed to providing innovative EV charger solutions that support the growing global demand for electric vehicles. Our solutions include high-quality CHAdeMO chargers, as well as multi-protocol chargers that support multiple standards, including CCS and GB. With years of experience in the industry, Linkpower is at the forefront of developing future-proof charging solutions that meet the needs of both consumers and businesses.
Some of the key strengths of Linkpower's EV charger solutions include:
Advanced Charging Technology: Our chargers are equipped with the latest technology to support high-power charging and ensure fast, efficient, and safe energy transfer.
- Global Compatibility: Linkpower chargers support multiple standards, including CHAdeMO, CCS, and GB, ensuring compatibility with a wide range of electric vehicles.
- Sustainability: Our chargers are designed with sustainability in mind, utilizing energy-efficient components and contributing to the reduction of carbon emissions.
- Robust Infrastructure: We provide reliable and durable charging stations built to withstand harsh environments, making them suitable for a variety of locations, from residential areas to commercial space
As the demand for electric vehicles continues to grow, Linkpower is committed to providing innovative and reliable charging solutions to support the transition to a sustainable future. Whether you are looking for fast charging solutions, high-power charging stations, or multi-standard compatibility, Linkpower has the right solution for your needs.
Post time: Jan-16-2025