Tesla Q3 2026 Deliveries: 486,532 Vehicles, Down 2% but Above Forecasts
Tesla delivered 486,532 vehicles in the third quarter of 2026, 2.1% fewer than a year earlier but about 5% above the analyst consensus. BYD sold more battery-electric cars.
// batteries & evs
Solid-State Battery Tracker
A dated, sourced log of solid-state and semi-solid-state battery milestones since 2023. It covers pilot lines, sample shipments, test vehicles, car deliveries and company production targets, each labeled by stage.
Researched and fact-checked by AI, with no human review. How we verify
26 entries from 26 sources. Checked for news weekly; last checked
What this tracker follows
This tracker logs dated milestones for solid-state and semi-solid-state batteries. In a solid-state battery, the electrolyte is a solid rather than a liquid. A semi-solid-state battery still contains some liquid or gel electrolyte. The tracker covers events from March 2023 onward. It was last checked on October 6, 2026.
An event gets an entry if it is one of five things:
- A pilot or demonstration production line being set up, funded or started.
- Prototype cells shipped to or tested by a carmaker. A-samples are early prototypes, and B-samples are a later stage.
- Cells fitted to a vehicle for road tests or customer deliveries.
- A production or launch target stated by a company.
- An official Chinese plan or standard, such as the terminology standard issued in August 2026.
Each entry says which stage it describes, because a laboratory result, a pilot line and mass production are different things. Targets are marked as scheduled and attributed to whoever set them. Performance figures are the companies' own unless stated.
Left out on purpose: funding rounds, stock listings, partnerships with no production or testing step, patents, academic papers and market forecasts. No entry here records an all-solid-state battery in a car on general sale. The cars listed as delivered to customers use semi-solid-state cells.
Scheduled next
Targets set by the organizations named. Dates like these often move.
Scheduled
Nissan's target to launch an EV with in-house all-solid-state batteries
Nissan's technology page, as read on October 6, 2026, says the company aims to launch an electric vehicle with all-solid-state batteries developed in-house by fiscal year 2028. The page shows a prototype production facility. This is a company target, not a result.
Scheduled
Toyota's 2027-28 window for its first EVs with all-solid-state batteries
Toyota said on October 8, 2025 that it aims to launch battery electric vehicles with all-solid-state batteries in 2027-28. In the same release it announced a joint development agreement with Sumitomo Metal Mining to mass-produce a durable cathode material the two companies developed.
Scheduled
Samsung SDI's target to start mass production of all-solid-state batteries
The Korea Herald reported on March 9, 2026 that Samsung SDI aims to begin mass production of all-solid-state batteries in the second half of 2027. The company had named 2027 as its mass-production year in a roadmap it presented in March 2024.
Source: Samsung SDI to debut batteries for AI humanoid robots, data centers, The Korea Herald
Scheduled
CATL's target for small-scale production of its first solid-state cells
Trade outlet electrive, citing CarNewsChina, reported the target on August 11, 2026. It said CATL had told investors it intends to begin small-scale production of its first solid-state cells in 2027. It added that CATL chief Robin Zeng said in June 2026 he does not expect mass-market adoption before 2030.
Source: CATL targets 2027 start for solid-state battery pilot production, electrive
Scheduled
BYD's target to begin small-scale production of all-solid-state batteries
On February 16, 2025, China Daily reported remarks by Sun Huajun, chief technology officer of BYD Lithium Battery. It said he told an industry forum the company plans to begin small-scale production of sulfide-based all-solid-state batteries by 2027. He said he expects them to reach mainstream EV models by 2030.
Source: Chinese firms unveil accelerated and ambitious plans for all-solid-state batteries, China Daily
Scheduled
Gotion's target to begin small-scale production of all-solid-state batteries
Trade outlet electrive reported on September 30, 2026 that Gotion High-Tech announced in 2024 plans to start small-scale production in 2027 and aim for mass production by 2030. It said Gotion commissioned a 0.2 GWh pilot line in 2025 and now targets 400 Wh/kg. These are company targets.
Source: Gotion targets 400 Wh/kg solid-state batteries, electrive
Scheduled
Solid Power's planned start-up of a continuous electrolyte pilot line
Solid Power said on August 4, 2026 that equipment acceptance testing for its continuous manufacturing pilot line for solid electrolyte was targeted for the third quarter. The company said plant validation and start-up were planned for the fourth quarter of 2026. This is a pilot line, not commercial-scale production.
Source: Solid Power Reports Second Quarter 2026 Results, Solid Power (U.S. SEC EDGAR filing)
Timeline
China's five-year battery plan sets an all-solid-state goal for 2030
China's Ministry of Industry and Information Technology said a 15th Five-Year Plan for the new-type battery industry had been issued. It said it and six other government bodies issued the plan. Among its goals for 2030, the ministry's explainer lists an initial stage of large-scale use of all-solid-state batteries.
Source: 《新型电池产业发展“十五五”规划》解读, Ministry of Industry and Information Technology (China)
ProLogium says its Gen 3.5 all-solid-state battery is in mass production
ProLogium Technology said its Gen 3.5 lithium ceramic battery was in mass production at its plant in Taiwan. It cited a third-party TÜV report of 381 Wh/kg and 903 Wh/L for a 185.4 Ah cell. The release gives no production rate. The mass-production claim and all-solid-state label are the company's own.
China issues a national standard on solid-state battery terms and classes
China's national standards platform lists GB/T 48093.1-2026, Solid-state battery for electric vehicle, Part 1: Terms and classification. The listing shows it as issued on August 28, 2026 and taking effect on January 1, 2028. It is a recommended standard overseen by the Ministry of Industry and Information Technology.
Stellantis begins road tests of a Dodge Charger with Factorial cells
Stellantis and Factorial said Factorial's FEST solid-state cells had been built into a Dodge Charger Daytona development vehicle. They said road testing had started. The release repeats cell figures from 2025: 375 Wh/kg and a 15% to 90% charge in 18 minutes. The car is not a model on sale.
QuantumScape inaugurates its Eagle Line pilot production line
QuantumScape held an inauguration event for the Eagle Line, the pilot cell production line it installed during 2025. Its shareholder letter says the line is meant to show scalable process steps. The letter says this is so that licensing partners can take the technology to gigawatt-hour scale in their own plants.
Source: Q4 Fiscal 2025 Letter to Shareholders, QuantumScape (U.S. SEC EDGAR filing)
Idemitsu starts building a large pilot plant for solid electrolyte
Idemitsu Kosan said it had made a final investment decision and begun building a large pilot facility for solid electrolyte at its Chiba Complex. It gave an expected capacity of several hundred tons a year, with completion targeted for 2027. The material is planned for Toyota's all-solid-state batteries.
SAIC's MG begins deliveries of an MG4 with a semi-solid-state battery
Trade outlet electrive reported on December 19, 2025 that SAIC had begun delivering the MG4 Anxin Edition in China. It said the car has a 53.95 kWh manganese-based semi-solid-state battery from QingTao Energy and is priced at about 100,000 yuan. The battery still contains some liquid electrolyte.
Source: MG kicks off deliveries of the MG4 with semi-solid-state battery, electrive
Nio says it stopped making its 150 kWh semi-solid-state pack
Trade outlet electrive reported on November 17, 2025 that Nio had ended production of its 150 kWh pack. It said production stopped after a few hundred units because of weak demand, citing chief executive William Li. Production began in April 2024 and used WeLion cells with a gel-like polymer electrolyte.
Source: Nio drops 150 kWh battery with semi-solid electrolyte again, electrive
BMW puts Solid Power all-solid-state cells in an i7 test vehicle
BMW Group said a BMW i7 test vehicle fitted with large-format all-solid-state cells from Solid Power was operating in the Munich area. BMW said further development steps are required before the technology can be used in a competitive battery system.
Source: BMW Group and Solid Power are testing all-solid-state battery cells in a BMW i7, BMW Group
Mercedes-Benz begins road tests of an EQS with a solid-state battery
Mercedes-Benz said road tests of a modified EQS with a prototype solid-state battery, built with cells from Factorial, started in February 2025. The company said the pack gives up to 25% more range than a standard EQS battery of equal weight and size. This is a test car, not a production model.
Honda unveils a demonstration production line for all-solid-state cells
Honda showed a demonstration line in Sakura City, Tochigi Prefecture. It has about 27,400 square meters of floor space, and the investment is roughly 43 billion yen. Honda planned to start making cells there in January 2025. It planned to use such batteries in models launched in the second half of the 2020s.
QuantumScape reports first shipments of QSE-5 B-sample cells
In its third-quarter 2024 shareholder letter, QuantumScape said it had begun shipping B-samples of its first product, the QSE-5 cell, for automotive customer testing. It said it was making its first B-sample cells in low volumes. It added that industrial-scale manufacturing still lay ahead.
Source: Q3 Fiscal 2024 Letter to Shareholders, QuantumScape (U.S. SEC EDGAR filing)
PowerCo and QuantumScape sign a licensing deal to industrialize cells
Under the deal, Volkswagen's battery company PowerCo can obtain a non-exclusive license once technical progress is satisfactory and royalties are paid. The license covers making up to 40 gigawatt-hours of QuantumScape cells a year, with an option for 80. The deal replaced an earlier Volkswagen-QuantumScape joint venture.
Samsung SDI sets out a roadmap to mass-produce all-solid-state cells in 2027
Ahead of the InterBattery 2024 show, Samsung SDI said its plan to mass-produce all-solid-state batteries in 2027 was on track. It cited an energy density of 900 Wh/L, its own figure. It said the pilot line set up at its Suwon R&D Center the previous year was delivering prototype samples.
Source: SAMSUNG SDI to Present Essence of Super-Gap Battery Technology at InterBattery 2024, Samsung SDI
PowerCo confirms a QuantumScape cell passed 1,000 charging cycles
Volkswagen's battery company PowerCo said a QuantumScape solid-state cell completed more than 1,000 charging cycles in its Salzgitter laboratories. It said the cell still had 95% of its capacity at the end. PowerCo described it as an A-sample test of a 24-layer cell. This is a laboratory result, not production.
Toyota and Idemitsu agree to work toward mass-producing solid electrolyte
The companies agreed to develop mass-production technology for sulfide solid electrolyte and build a supply chain. Idemitsu would build and run a large pilot facility. Toyota would develop batteries and electric vehicles for launch in 2027-28. Full-scale mass production would be studied afterward.
Solid Power delivers its first A-sample EV cells to BMW
Solid Power said on November 7, 2023 that it had produced and delivered its first A-sample electric vehicle cells to BMW. It said this happened a little over a week earlier and meant formally entering automotive qualification. A-samples are early prototypes. The cells were also meant to support a BMW demonstration car program.
Toyota says it aims to commercialize solid-state batteries in 2027-28
TechCrunch reported that Toyota said it aims to commercialize solid-state batteries between 2027 and 2028. TechCrunch also reported that the company projected a range of about 1,200 kilometers and a charging time of 10 minutes for vehicles using them. These were company projections, not test results.
Source: EV laggard Toyota says its next-gen EVs will have over 600 miles range, TechCrunch
Samsung SDI sets up an all-solid-state battery pilot line in Suwon
Samsung SDI says it established a pilot line at its Suwon R&D Center in South Korea in March 2023. It describes the line as the first of its kind in the country. It says it began producing prototypes at the end of 2023. The dates come from a company release issued on October 31, 2025.
Source: SAMSUNG SDI to Collaborate on All-Solid-State Battery Validation Project with BMW Group, Samsung SDI
Update history
- Rewritten in shorter, plainer sentences. No facts were changed.
- Added Gotion High-Tech's 2027 target for small-scale production of all-solid-state batteries.
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