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[SITUATION] · [QUIET] · [TECHNOLOGY]

5 clusters · 34 sources · 25 days · First seen about 2 months ago · Last updated 27 days ago

ProLogium solid-state battery production and testing

Overview

Taiwanese company ProLogium Technology has commenced mass production of its Generation 3.5 Lithium Ceramic Battery (LCB) at its facility in Taoyuan. These large-format 185.4 Ah cells, designed for high-power and fast-charging electric vehicle applications, have undergone third-party verification. TÜV Rheinland confirmed a gravimetric energy density of 381 Wh/kg and a volumetric energy density of 903 Wh/L, while UL Solutions verified the cells against Chinese GB/T 43568-2026 standards.

The Gen 3.5 battery utilizes the proprietary Logithium architecture, combining a ceramic separator with a specialized peripheral frame structure. To ensure industrial scalability, ProLogium is designing its next generation of batteries to utilize approximately 90 percent of existing production infrastructure.

Expanding its technological roadmap, ProLogium has entered into a joint testing agreement with Mercedes-Benz to evaluate its upcoming Gen4 lithium ceramic battery cells. This partnership, which dates back to 2016, grants the German automaker priority access to the technology for electrical, thermal, and safety trials conducted at Mercedes-Benz facilities and external institutes. The Gen4 cells feature a non-flammable inorganic electrolyte, a ceramic separator, and a silicon anode, designed to optimize fast charging, high power output, and performance in cold weather while balancing safety, energy density, scalable manufacturing, and cost.

While the agreement does not guarantee immediate mass production or specific vehicle release dates, the companies are focusing on how the cells perform under real-world automotive conditions, including temperature fluctuations and cycle life. Mercedes-Benz, which holds a seat on the ProLogium board, also supports the company’s planned Nasdaq listing in the fourth quarter of 2026. To support large-scale production, ProLogium is planning a manufacturing plant in Dunkirk, France, with a capacity of up to 44 GWh.

Entities

Mercedes-Benz · ProLogium · UL Solutions · ProLogium Technology · Solid Power

Claims

What the coverage asserts, and how many sources carry each claim.

[○ 1 SOURCE] CATL plans to procure up to 20,000 tons of cathode copper from Hong Kong Ansheng in 2027 and 2028.
[○ 1 SOURCE] The total purchase volume cap for the copper agreement is 320 million US dollars.
[○ 1 SOURCE] CATL's energy storage battery system division revenue rose 87.5 percent in the first half of 2026 compared to the previous year.
[○ 1 SOURCE] ProLogium has begun mass production of its generation 3.5 solid-state battery in Taiwan. battery-news.de
[○ 1 SOURCE] ProLogium's large-format solid-state cells reach an energy density of 381 Wh/kg. battery-news.de

Timeline

27 days ago

[BUSINESS] 3 sources
Battery industry updates: CATL secures copper supply and ProLogium starts mass production
CATL secures a copper supply deal through 2028, ProLogium begins solid-state battery mass production, and experts suggest Europe focus on flexible battery manufacturing to compete globally.
about 1 month ago

[TECHNOLOGY] 15 sources
Mercedes-Benz tests ProLogium Gen4 solid-state batteries
Mercedes-Benz is testing ProLogium’s Gen4 lithium-ceramic solid-state batteries, while Hyundai R&D leadership maintains that solid-state technology is a critical, albeit high-cost, future for EVs.
about 1 month ago

[BUSINESS] 8 sources
Mercedes-Benz to test ProLogium Gen4 ceramic battery cells
Mercedes-Benz is testing ProLogium’s Gen4 lithium ceramic battery cells to evaluate their suitability for future electric vehicles, focusing on safety, fast charging, and cold-weather performance.
about 2 months ago

[TECHNOLOGY] 6 sources
ProLogium begins mass production of solid-state batteries in Taiwan
Taiwan-based ProLogium has begun mass production of its Gen 3.5 lithium ceramic solid-state batteries, achieving high energy density and meeting all-solid-state certification standards.
about 2 months ago

[TECHNOLOGY] 5 sources
ProLogium begins mass production of high-density solid-state batteries
ProLogium Technology has begun mass production of its Gen 3.5 lithium ceramic solid-state battery in Taiwan, achieving high energy densities of 381 Wh/kg in third-party tests.

Sources

autoactu.com · autojournal.fr · automobile-propre.com · automotiveworld.com · autonocion.com · battery-news.de · cnmo.com · dailyguardian.ca · dsf.my · electronique-mag.com · forococheselectricos.com · fr.motor1.com · greencarfuture.com · hvg.hu · insideevs.fr · insideevs.it · interestingengineering.com · ithome.com · journalauto.com · kapitalmarktexperten.de · latribuneauto.com · maschinenmarkt.vogel.de · mbpassion.de · mecanicaonline.com.br · mobilsiden.dk · motori.it · motorimagazine.it · newsauto.gr · processingmagazine.com · schmidtisblog.de · shiftdelete.net · taiyangnews.info · teknoblog.com · testcoches.es

This summary has been updated 4 times: see revision history