Subj : The end of range anxiety? Mercedes' solid-state battery tech just
To   : All
From : TechnologyDaily
Date : Thu Sep 11 2025 20:00:10

The end of range anxiety? Mercedes' solid-state battery tech just drove 749 
miles without a stop

Date:
Thu, 11 Sep 2025 19:00:00 +0000

Description:
Mercedes-Benz has again demoed the potential of its solid-state battery 
technology in a road trip that covered almost 750 miles on just one charge.

FULL STORY
======================================================================Mercedes
 engineers drove from Stuttgart in Germany to Malmo, Sweden The 749-mile 
journey was made on a single charge Endeavor proves the energy density of 
future solid-state battery packs 

Mercedes-Benz continues to demonstrate the power of its solid-state battery 
technology , with its most recent road trip covering a staggering 749 miles 
on a single charge. 

Its team of engineers loaded up the EQS test vehicle in Stuttgart, Germany 
and took the scenic route to Malmo in Sweden. Calculated using Electric 
Intelligence  the marques clever route-planning software  the journey 
factored in topography, traffic, ambient temperature, as well as energy needs 
for heating and cooling to maximize range. 

The German brand, which has already set numerous electric vehicle distance 
records with its highly-optimized EQXX rolling laboratory, is keen to point 
out that the EQS used in its latest endeavor was only lightly modified. 

Existing lithium-ion packs were swapped out for lithium-metal solid-state 
cells developed by US-based manufacturer Factorial Energy. The pack itself 
was then honed by Mercedes-AMG High Performance Powertrains, which 
specializes in F1 technology. 

Despite the weight and size of the solid-state battery being comparable to 
current EQS technology, the useable energy content is apparently 25% greater, 
while additional energy efficiency savings were made through passive airflow 
cooling. 

This resulted in a bladder-busting road trip that actually surpassed the 
previous record set by the Vision EQXX on its StuttgartSilverstone route by 
just shy of two miles. In fact, the solid-state packs still boasted 85 miles 
remaining when the EQS arrived at its destination. A solid case for 
solid-state (Image credit: Mercedes-Benz) 

Many automotive brands are deep in the research phase of solid-state battery 
tech, while a number of Tier 1 suppliers and specialists are pushing the tech 
forward. 

At this years IAA Mobility show in Munich, Rimac showcased its developments 
in the area, while the VW Group shoehorned a small solid-state battery pack 
into a Ducati motorcycle so it could undergo rigorous testing on the race 
circuit. 

MG is poised to be the first to release a mass-produced semi solid-state 
battery in the upcoming MG4 refresh, which are cheaper and slightly easier to 
manufacture, while IM Motors and Nio in China already have models on sale. 
BMW also has demonstration i7 models running all-solid state prismatic cells 
developed by Colorado-based battery start-up Solid Power. 

Currently, the complex manufacturing processes and the high costs involved 
have so far prevented all solid-state battery tech from reaching critical 
mass, but it is only a matter of time. You might also like The worlds first 
mass-produced car with semi solid-state batteries is finally coming, and its 
cheaper than youd think Mercedes announces breakthrough in solid-state EV 
battery tech, but Chinese rivals are still way ahead Ive driven the new 
Mercedes-Benz CLA and it convinced me that EV efficiency can actually be 
exciting



======================================================================
Link to news story:
https://www.techradar.com/vehicle-tech/hybrid-electric-vehicles/the-end-of-ran
ge-anxiety-mercedes-solid-state-battery-tech-just-drove-749-miles-without-a-st
op


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