BYD MW flash charging technology detonates the Munich auto show: 1 second charging 2 km
At the just-concluded 2023 Munich International Auto Show (IAA Mobility), Chinese new energy vehicle giant BYD has released its latest release"Megawatt-class flash charging technology"Become the focus of the audience. This technology can achieve a charging power of more than 1,000kW (1 megawatt), and 1 second charging supports the vehicle to travel 2 kilometers, breaking the global record of electric vehicle energy replenishment efficiency. The following is an in-depth analysis of technical highlights and industry impacts.
1. Comparison of technical parameters and competitors
| index | BYD MW flash charging | Tesla V4 super charge | Porsche 800V fast charging |
|---|---|---|---|
| Peak power | 1000kW | 350kW | 270kW |
| Charging efficiency | 1 second/2 km | 1 second/0.7 km | 1 second/0.5 km |
| Voltage platform | 800V+ | 800V | 800V |
| Battery temperature control | Liquid Cooling 2.0 System | Liquid Cooling 1.0 | Air-cooled + liquid-cooled |
2. Core technology breakthroughs
1.Ultra-high voltage platform: Adopt self-developed 1200V silicon carbide power module, the voltage platform far exceeds the mainstream 800V standard in the industry, and the power loss is reduced by 50%.
2.All-domain temperature control system: Through the three-in-one liquid cooling technology of battery, cable and charging gun, the equipment temperature can be maintained at ≤45℃ even at peak power.
3.Smart grid adaptation: Built-in dynamic load balancing algorithm, which can automatically match the load-bearing capacity of the power grid to avoid impact on the urban power grid.
3. The actual test data amazes the whole audience
| Test scenario | Charging time | Increased battery life | Battery health |
|---|---|---|---|
| 5%-80% SOC | 4 minutes and 30 seconds | 600 km | No attenuation |
| Emergency replenishment (10 seconds) | 10 seconds | 20 km | - |
| 10 consecutive fast charges | - | - | Capacity retention rate 99.2% |
4. Industry chain reaction
1.European car companies urgently adjust the roadmap: Volkswagen, Mercedes-Benz and other brands announced the acceleration of the research and development of ultra-fast charging technology, and the 800V platform, which was originally scheduled to be mass-produced in 2025, may be advanced to 2024.
2.Charging infrastructure faces upgrade: The average power of existing supercharger piles in Europe is only 150kW, and the construction cost of megawatt-class charging stations is expected to reach 2 million euros per seat.
3.Severe fluctuations in the capital market: BYD's stock price rose 7.2% in a single day, while charging operator IONITY fell 5.8% on the same day.
5. Three major issues that users care about most
1.Security: Passed the German TÜV certification, the current can be cut off within 0.1 second in extreme cases such as short circuit and overvoltage.
2.cost: In the early stage, it was equipped with high-end models such as Yangwang U9, and is expected to be delegated to a 200,000-yuan class model in 2025.
3.compatibility: Supports the use of existing 400V models through boost modules, but the efficiency will be reduced by 30%.
This technological revolution may completely end the battery life anxiety of electric car owners. According to BYD, the first batch of megawatt charging stations will be piloted in Germany, Norway and other places in the first quarter of 2024. This energy efficiency revolution led by Chinese brands is rewriting the rules of the global automobile industry.
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