Top 10: Solid State EV Battery Manufacturers

Solid-state batteries are entering a decisive phase as manufacturers shift breakthroughs from pilot cells to scalable automotive platforms.

The sector's key players are industrialising sulphide, oxide and polymer electrolytes with silicon-rich or lithium-metal anodes to raise energy density, speed charging and improve safety at pack level.

Production pilots, dry-electrode lines and cell-to-pack integration are converging to lower cost and simplify manufacturing while meeting rigorous abuse tests.

Partnerships across automakers and materials suppliers are accelerating timelines toward 2027–2030 launches, with early semi-solid steps informing full solid-state designs.

In this week's Top 10, EV Magazine spotlights some of the solid-state EV battery manufacturers that are setting the pace, from prototype to production.

10. Solid Power

Solid Power is a leading US developer of all-solid-state battery technology, specialising in sulfide-based solid electrolytes for EVs

Its proprietary electrolyte replaces liquid systems to boost safety, lifespan and energy density, targeting more than 500 miles of range.

With pilot lines complete, Solid Power partners with BMW, Ford, Samsung SDI and SK Innovation to accelerate commercialisation.

Aiming for costs of US$85 per kWh, its silicon-anode and lithium-metal designs promise lighter, safer and more efficient batteries, positioning Solid Power at the forefront of next-generation EV technology.

9. Enovix

Enovix designs robust, material-agnostic cells that maximise volumetric efficiency and thermal performance while enabling a 100% silicon anode for high energy density and capacity.

Its novel stacked architecture and stainless-steel constraint system control first-charge expansion, minimise cycle swelling to under 2% after 500 cycles and sustain long cycle life.

Pre-lithiation improves first-charge efficiency, while BrakeFlow safety technology adds abuse tolerance.

The design promises higher pack-level energy, better conductivity and lower cost through simplified system design and scalable, low-cost manufacturing processes.

8. Gotion High-Tech

Gotion High-Tech, a Volkswagen-backed battery and energy storage leader, is accelerating EV innovation with production-ready fast-charge and next-gen chemistries.

At its 13th Technology Conference the company unveiled the 5C G-Current battery, capable of 80% in 9.8 minutes and 90% in 15, spanning LFP, LMFP and NCM systems.

Its high-nickel NCM Stellary cylindrical battery charges 10–70% in nine minutes, adds 350km in five minutes and 600km in ten and dissipates 70% of heat externally within three seconds, with wireless BMS and advanced cooling.

The Gemstone all-solid-state battery delivers 350 Wh/kg and passes a 200°C hot-box test, securing higher energy density with enhanced safety and cost-efficient Gen7 manufacturing.

7. NIO

NIO, one of China’s leading EV manufacturers, is advancing solid-state integration through its 150 kWh semi-solid-state battery, developed with WeLion, delivering up to 577 miles of range and full compatibility with existing models.

With more than 2,300 battery swap stations, NIO leads the global swap network while partnering with CATL and BYD to extend battery life and efficiency.

Its collaboration with CATL focuses on long-life batteries using innovative R&D and data-driven lifecycle management, ensuring 80% capacity retention after 12 years and enabling sustainable, cost-efficient EV ownership.

6. Samsung SDI

Samsung SDI is driving the next era of sustainable mobility through advanced battery innovation.

As the core of electric and plug-in hybrid vehicles, its high-capacity, energy-dense batteries deliver long range, fast charging and exceptional safety.

Samsung SDI’s “super-gap” solid-state technology improves energy density and safety, with the world’s largest pilot production line, “S-Line”, completed in 2023 and mass production planned for 2027.

Targeting premium EVs, its roadmap includes cobalt-free, high-efficiency designs and 900 Wh/L solid-state batteries, reinforcing its leadership in next-generation energy solutions.

5. CATL

Contemporary Amperex Technology Co., Limited (CATL), the world’s largest lithium-ion battery maker, is advancing solid-state technology at pace.

With more than 1,000 researchers and almost a decade of investment, CATL has developed a hybrid “condensed state” battery and prototype cells hitting 500 Wh/kg.

Prototype production is in progress, with small-scale manufacturing targeted for 2027.

Remaining hurdles centre on charging speed and cycle life, but CATL is iterating rapidly to bring high-density solid-state solutions to market and accelerate next-generation electrification worldwide adoption.

4. LG Energy Solutions

LG Energy Solution is advancing battery innovation through significant R&D investment and next-generation technology development.

In 2023, it invested US$819m in R&D and established the Future Technology Center under CEO David Kim to accelerate work on solid-state, semi-solid, lithium-sulphur and lithium-metal batteries.

Led by Vice President Geun-Chang Chung, the centre focuses on boosting energy density, safety and cost efficiency while enhancing dry electrode and Cell to Pack (CTP) technologies.

With 46-Series batteries launching in 2024 and solid-state mass production targeted for 2030, LG Energy Solution continues to pioneer sustainable, high-performance energy solutions for global mobility.

3. Nissan

Nissan is unveiling a prototype production facility for laminated all-solid-state battery (ASSB) cells at its Research Center in Kanagawa Prefecture, marking a key step towards launching its first in-house developed ASSB-powered EV by 2028.

Under its Ambition 2030 vision, Nissan plans to establish a pilot production line at its Yokohama Plant in 2024, targeting battery costs of US$75 per kWh by 2028 and $65 thereafter.

ASSBs promise twice the energy density of lithium-ion batteries, faster charging and lower costs, positioning Nissan to revolutionise EV performance across multiple vehicle segments.

2. BYD

BYD’s Blade Battery is a lithium iron phosphate (LFP) pack engineered for safety, durability and efficient packaging.

Launched in March 2020 after decades of R&D, it replaces conventional modules with long, blade-like cells in a Cell to Pack design that boosts space utilisation by about 50%, improving energy density and range while maintaining a compact footprint.

LFP chemistry brings inherent thermal stability and is largely cobalt free, enhancing safety and longevity.

Blade Battery sets a benchmark in the Nail Penetration Test, showing no smoke or fire and surface temperatures of only 30–60°C and it withstands crushing, bending, 300°C oven heating and 260% overcharge without ignition.

The rigid, honeycomb-like aluminium structure further strengthens the pack. Faster charging, consistent output and long cycle life make it a robust choice already fitted to BYD Tang, Han and Atto 3.

BYD is also advancing solid-state research targeting up to 500 Wh/kg with pilot output planned from 2027.

1. Toyota

Toyota is transforming the future of mobility through its next-generation battery roadmap, with production of new battery electric vehicles (BEVs) beginning in 2026.

Under the leadership of Takero Kato, President of Toyota’s BEV Factory, the company is aiming for 1.7 million of its 3.5 million BEVs sold by 2030 to feature advanced battery systems designed to meet diverse customer needs.

Toyota is developing three main battery types – 'Performance', 'Popularisation' and 'High Performance' – offering ranges from 800km to more than 1,000km, faster charging times of 20 minutes or less and significant cost reductions.

The company is also pioneering solid-state batteries that enable 10-minute charging and a 20% to 50% increase in range, with mass production targeted for 2027-28.

By optimising aerodynamics and reducing battery height to 100mm in sports models, Toyota is enhancing both efficiency and performance, reinforcing its position as a global leader in EV innovation.