EV Startup Mullen Automotive Says It’s Making Significant Progress On A Solid State Battery

As the transition to electrified vehicles continues to move forward, one goal is solid-state battery technology. Now, Mullen Automotive, another EV startup aiming to bring luxury electric vehicles to the market, says that they’ve made serious progress.

The first generation 2024 Mullen FIVE EV is going to use a traditional lithium-ion battery pack but the brand wants to use solid-state technology for the second generation. Right now, testing has just been at the cell level but they’re about to ramp things up with pack testing.

David Michery, CEO and chairman of Mullen Automotive, said: “The test data collected shows an impressive outcome and future for solid-state batteries. To sum up, we tested our 300 Ah (ampere-hour) cell which yielded 343 Ah at 4.3 volts, and the results surpassed all expectations. We can say with almost certainty that this technology, once implemented on the Mullen FIVE, will deliver over 600 miles of range on a full charge. The future is bright for Mullen Automotive.”

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Solid-state battery technology could be a huge benefit to the entire EV market. Such batteries offer the promise of more range, faster charging, and possibly even less weight depending on the size of the pack. All of those features would be very beneficial to any electric vehicle. Just saving weight without sacrificing range could be huge.

Saving weight can immediately improve a vehicle’s dynamics in all areas including acceleration, braking, and handling. In fact, one of the biggest constraining factors with regard to performance-oriented battery-electric vehicles right now is how heavy they are.

For example, the Tesla Model S Plaid is basically the fastest accelerating production car in the market. However, as one of the best performers with regard to range, Tesla might take note of this Mullen announcement.

Mullen says that in testing, they’ve found ” the potential for a 150-kilowatt-hour battery pack that delivers over 600-plus miles of range and highlights an 18-minute DC fast charge which can yield over 300 miles of range.” The Tesla Model S features a 99kWh battery and a maximum of 375 miles of range. If the Mullen FIVE ever comes to market with a real solid-state battery, it would be a big step forward.