The dream of adding 400 kilometers of range in just five minutes—once a distant aspiration for electric vehicles—is now becoming a reality.

> The dream of adding 400 kilometers of range in just five minutes—once a distant aspiration for electric vehicles—is now becoming a reality.

As the new energy vehicle industry rapidly develops, ultra-fast charging technology has emerged as the key solution to "range anxiety." Recent breakthroughs in charging power, architectural design, and cooling technology by multiple companies are paving the way for a new phase in the widespread adoption of electric vehicles.

These technological advances are not only making charging speeds comparable to the refueling experience of traditional gasoline vehicles but are also reshaping the competitive landscape of the entire EV industry.

 

 01 Technological Frontier: Megawatt Charging Achieves "EV Refueling Speed"

The most notable breakthrough in the ultra-fast charging sector recently has been the realization of **megawatt-level charging** technology. BYD’s super e-platform, centered on the philosophy of "**Megawatt Flash Charging, EV Refueling Speed**," has successfully increased charging power to **1MW (1000kW)**, achieving a record of "5-minute charging for 400 km of range."

This breakthrough means EV charging times are now approaching the efficiency of refueling a conventional car.

To accomplish this, BYD developed the world’s first mass-produced "**Full-Domain 1000V High-Voltage Architecture**" for passenger vehicles, elevating the battery, motor, power supply, and air conditioning to the 1000V level, officially ushering in the kilovolt era for electric cars.

Concurrently, its "Flash Charging Battery" establishes an ultra-high-speed ion channel through comprehensive optimization from the positive to the negative electrode, reducing internal battery resistance by 50%, enabling a charging current of 1000A, and achieving a charging rate of 10C.

Supported by an ultra-high voltage of 1000V and an ultra-high current of 1000A, the "Flash Charging Battery" achieves a global mass-production record charging power of 1 megawatt, officially launching the "Megawatt Era" of charging.

02 The Power Race: Breakthroughs Across Passenger Vehicles and Heavy Trucks

The competition in ultra-fast charging technology is intensifying across all segments, with power records continuously being broken, from passenger cars to commercial heavy-duty trucks.

Sungrow Power Supply unveiled the world’s first European-standard **3.5MW ultra-fast charging system**, ChargeStack 1000, in Amsterdam, Netherlands. Utilizing a "1+X" scalable architecture, it supports smooth expansion from 1MW to 3.5MW, marking a new breakthrough in charging power.

This system boasts 97% efficiency and 98.5% availability, increasing throughput by 33%.

Not to be outdone, Huawei launched a megawatt-level ultra-fast charging solution for commercial heavy trucks, drastically reducing charging time from the conventional one hour to just **15 minutes**.

To support the electrification of heavy trucks, Huawei is accelerating the construction of a nationwide ultra-fast charging network, planning to establish approximately **20,000 megawatt-level charging bays** by the end of 2025, building a multi-level energy replenishment system covering "points, lines, and areas."

Regional innovations are equally impressive. The Hunan Expressway Group created the nation’s first all-liquid-cooled ultra-fast charging corridor along the Xu-Guang Expressway in Hunan, where a single gun can deliver a maximum power of **600 kilowatts**, adding about 300 kilometers of range in just 5 minutes.

### 03 Solving Technical Bottlenecks: Innovations in Cooling and Infrastructure

Achieving ultra-fast charging faces significant technical challenges, including thermal management, battery longevity, and grid impact. The industry has proposed various innovative solutions to these problems.

In **cooling technology**, the "all-liquid-cooled" technology adopted by the Hunan Expressway Group uses an efficient liquid-cooling circulation system to provide powerful cooling for the gun lines and key components, ensuring stable output of the 600 kW peak power even in extreme heat, combining speed with safety.

BYD addressed the challenge of battery cooling with its **direct refrigerant cooling technology**. Based on the direct cooling and heating technology for power batteries pioneered in 2021, it has been upgraded to a "**stereoscopic flow channel composite temperature control system**," increasing the heat exchange area by 100% and improving cooling efficiency by 90%, enabling precise temperature control even during 10C fast charging.

For the **grid impact** issue, Sungrow's solution involves integrating a solar-storage-charging configuration into the charging network, a design claimed to increase customer benefits by up to **60%.**

04 Charging Network Construction: Comprehensive Coverage from Cities to Highways

With breakthroughs in ultra-fast charging technology, the construction of charging networks is also accelerating, aiming to achieve comprehensive coverage from urban areas to highway scenarios.

Tesla has officially commissioned its first V4 Supercharger station in Hungary. These next-generation chargers can deliver up to **250kW** of power, adding up to 275 kilometers of range in just 15 minutes.

As of July this year, Tesla operates over **1,500 Supercharger stations** across Europe, with more than 10,000 individual Superchargers, forming an extensive energy replenishment network.

The Hunana Expressway Group is accelerating the development of a "2 Vertical, 2 Horizontal" backbone liquid-cooled ultra-fast charging network. By the end of 2026, this large-power ultra-fast charging network, covering the province's transportation arteries, is expected to be fully completed.

Beyond passenger vehicles, Hunan Expressway is actively expanding into heavy-duty truck ultra-fast charging, addressing the bottleneck in the electrification of freight transport.

05 Economic Benefits & User Experience: The Commercial Value of Ultra-Fast Charging

Ultra-fast charging technology not only brings technical breakthroughs but also creates significant economic benefits and enhances the user experience.

An owner of a BYD Han L pure electric vehicle reported that the car recovered 400 kilometers of range from a depleted state in just 5 minutes, truly achieving "EV refueling speed." This experience fundamentally changes user habits and expectations regarding electric vehicles.

At the Changsha West Service Area on the Hunan Expressway, a new energy vehicle owner plugged in the charging gun and headed to the rest area. "The system notified me that charging was complete before I could finish a cup of Americano."

Behind this disruptive experience is the Hunan Expressway Group's scientific planning and moderately layout of a high-power charging network, centered on the "**charge-and-go**" scenario, transforming "charging anxiety" into "charging freedom."

For operators, Sungrow's ChargeStack 1000 ultra-fast charging system achieves 97% efficiency and 98.5% availability, increasing throughput by 33%.

Coupled with the solar-storage-charging integrated system configuration, it can increase customer benefits by up to **60%.**

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The competition in ultra-fast charging technology has just begun.** Huawei's plan for 20,000 megawatt-level charging bays, Hunan Expressway's "2 Vertical, 2 Horizontal" liquid-cooled ultra-fast charging backbone network, and Tesla's expanding V4 Supercharger stations paint a picture of the near future: EV owners will enjoy the convenience of "a full charge in the time it takes to drink a coffee" at expressway service areas, urban centers, and logistics hubs.

The leap in charging efficiency is redefining the boundaries of imagination for electric mobility**—energy replenishment is no longer a wait but a series of highly efficient pit stops.