FAW Hongqi unveils ultra-fast battery, 10-70% charge in 3 min 41 sec

FAW Hongqi says its ultra-fast battery charges 10%-70% in 3 minutes 41 seconds

China FAW Group’s Hongqi brand said its newly developed ultra-fast charging battery can go from 10% to 70% in 3 minutes and 41 seconds. If it reaches mass production, that would be faster than BYD‘s (HKEX: 1211) second-generation Blade Battery.

The battery, developed in-house by the Hongqi brand together with China Automotive New Energy Battery Technology (CNET), recently completed charging performance tests at 25 C, according to a statement on Tuesday.

Test data showed the battery needs just 3 minutes and 41 seconds to charge from 10% to 70% SOC (state of charge), and 8 minutes and 3 seconds to go from 10% to 97% SOC, figures that lead the industry, Hongqi said.

Hongqi didn’t mention a mass production timeline for the battery, nor which model would be the first to carry it. BYD’s second-generation Blade Battery and flash charging technology are already available in a large number of models.

The battery features a highly efficient ultra-fast charging anode that breaks through the charging rate bottleneck of cells, allowing a peak charging rate of 12C, Hongqi said.

The brand also developed its own electrolyte with low desolvation energy to lower the barrier to lithium-ion migration.

Using composite carbon source coating plus bulk-phase doping modification technology, the cell’s internal resistance is 15% lower than that of comparable cells, improving charge transfer efficiency and charging response speed, Hongqi said.

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FAW Hongqi says its ultra-fast battery charges 10%-70% in 3 minutes 41 seconds, source