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Fast charging gets faster in LFP batteries via electric vehicle maker Zeekr

The fast charging race in batteries has continued, with a Chinese automaker claiming the fastest-charging electric vehicle, as LFP chemistry surprisingly outpaces NMC for fast-charging.

Zeekr, an electric vehicle (EV) maker within the Geely Auto group, has integrated its self-developed fast-charging battery technology, based on lithium-iron-phosphate (LFP) chemistry, into its latest vehicles.

Zeekr introduced its so-called ‘Golden Battery’ in December, touting fast-charging capabilities made possible through a prismatic in-house design.

According to the company, the 75 kWh battery pack supports ‘5.5C ultra-fast charging,’ enabling vehicles to charge from 10% to 80% in just 10.5 minutes using 800V charging at Zeekr’s proprietary stations.

Zeekr claims the new sedan, with a revised battery management system to enable faster charging, offers a range of 682 kilometers based on Chinese standards. A 10.5-minute charge adds 482 kilometers, and a 5-minute charge provides 265 kilometers.

If these claims hold true, Zeekr’s battery technology will offer the fastest charging speeds globally for mass-produced lithium ternary batteries, outpacing the more expensive nickel-cobalt-manganese chemistry.

In December, Zeekr said, “LFP batteries are traditionally regarded by the industry to have lower energy density in comparison with nickel-manganese-cobalt (NMC) batteries at the cell level. In order to tackle that, ZEEKR’s engineers carefully designed the battery pack for the new LFP to achieve high energy density at the pack level. Thanks to the application of newly-developed materials and simplified structural design, the volume utilization of the new battery pack reaches 83.7%, higher than many global peers.”

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