From 10 to 70 Percent in Five Minutes With One Megawatt

Battery And Charging Infrastructure From 10 to 70 Percent in Five Minutes With One Megawatt

2026-03-10 From Dipl.-Ing. (FH) Michael Richter | Translated by AI 4 min Reading Time

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While the world is talking about the Donut Lab battery, a really exciting concept is coming from BYD. The Chinese electric vehicle manufacturer combines a robust lithium iron phosphate (LFP) chemistry with an unusual cell and pack design.

The concept of the blade battery.(Image: BYD Europe B.V.) — The concept of the blade battery.
(Image: BYD Europe B.V.)

The currently presented performance data show exceptional charging characteristics. Under normal ambient conditions, the state of charge can be increased from 10 % to 70 % in just five minutes. The values in the higher charging range are even more impressive: from 10 % to 97 %, the battery should only need nine minutes at room temperature. Even at extremely low temperatures of −22 °F, the charging time for the same range is around twelve minutes, according to the manufacturer.

This last value in particular is technologically interesting. Lithium-based batteries normally lose much of their charging capacity at low temperatures because ion diffusion in the electrolyte and electrodes decreases significantly. An almost complete charge in just a few minutes at −22 °F therefore indicates a very well coordinated interaction between cell chemistry, internal resistance, thermal management and charging electronics.

Charging Infrastructure

Anyone wondering what kind of charging infrastructure will make such charging times possible will quickly come to the next element of BYD's strategy. The manufacturer is working on a so-called "flash charging" system that will achieve charging capacities of up to 1,000 kW. The basis for this is a new 1,000-volt vehicle platform, which is used in models such as the BYD Han L EV and the BYD Tang L EV.

In China, the extreme charging performance is currently being achieved using an unusual approach. Vehicles there have two charging ports so that two charging cables can be connected in parallel. Both connections feed energy into the battery at the same time, enabling charging capacities in the megawatt range.

However, BYD is apparently planning a different approach for Europe. According to industry reports, the flash charging system will work here with just one CCS connection. This would continue to use the Combined Charging System (CCS) established in Europe, but with significantly higher performance than today's fast chargers.

Technical development on the infrastructure side is already underway. Manufacturers of fast-charging systems are working on new connectors and cooling concepts that are capable of transmitting such power. The Alpitronic HYC1000 system, for example, already enables charging capacities of several hundred kilowatts per connection. At the same time, Phoenix Contact is developing CCS connectors with improved cooling structures, which should enable outputs in the megawatt range in the future.

According to BYD, it is also planning to develop flash charging technology in Europe. Several hundred fast-charging stations could be built by the second quarter of 2026.

LFP As the Basis for Safety And Service Life

Technologically, the second generation of the blade battery is based on lithium iron phosphate (LFP). Although this chemistry is traditionally considered to be somewhat less energy dense than nickel-cobalt-manganese (NCM) systems, it offers decisive advantages in terms of stability and service life.

The LFP structure is characterized by high thermal stability and does not release oxygen when overheated. This significantly reduces the risk of thermal runaway. At the same time, the chemistry enables a very high cycle stability. BYD specifies a service life of over 5,000 charging cycles for the blade battery, which can correspond to an operating life of well over ten years for a typical vehicle battery.

Unusual Cell Format

A key feature of the blade technology is the cell format itself. Instead of classic prismatic or cylindrical cells, BYD uses long, flat cell bodies that are visually reminiscent of narrow blades—hence the name "blade". These cells are integrated directly into the battery pack, where they form a honeycomb-like structure.

By dispensing with additional module housings, the available installation space in the battery pack can be utilized much better. At the same time, the elongated cell geometry improves heat distribution within the system. In newer vehicle platforms, the battery pack is also structurally integrated into the body, so that it can take on some of its own load-bearing functions.

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Date: 08.12.2025

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Safety in the Stress Test

The safety strategy of the blade battery is often demonstrated using the so-called nail penetration test. This involves driving a metal nail through a cell to simulate an internal short circuit. According to the manufacturer, the battery shows neither flame formation nor heavy smoke development in this scenario, while the surface temperature remains comparatively low.

This is primarily due to the stable LFP chemistry and the mechanical design of the cell pack. The combination of chemical stability and structural design reduces the likelihood of uncontrolled heat spreading within the battery block.

Use in Series Vehicles

The blade battery is already being used in several vehicle models, including the BYD Dolphin, the BYD Seal electric saloon and the BYD Tang SUV. It is used in both fully electric vehicles and plug-in hybrid models.

BYD gives a warranty of eight years or 155,000 miles for the battery, whereby at least 70% of the original capacity should be retained.

Evolution Instead of A Spectacular Breakthrough

In contrast to many battery concepts currently under discussion, BYD is focusing less on radically new chemistries and more on the consistent further development of proven technologies. The combination of LFP cell chemistry, optimized pack design and structural integration into the vehicle shows that considerable progress can also be made with familiar materials.

If the extremely short charging times in particular—especially the almost complete charge within twelve minutes at −22 °F—are confirmed in practical use, blade technology could represent one of the most realistic solutions currently available for two challenges of electromobility: fast charging and reliable operation under extreme climatic conditions. (mr)