While the new energy vehicle industry is still competing to break through the thousand kilometer range, and the safety hazards of electronic devices are still affecting people's hearts, China's energy technology field has achieved a milestone breakthrough - the first large capacity all solid state battery production line in China has been officially put into operation. This marks a crucial leap from catching up to leading in the field of next-generation battery technology in China, and the core driving force behind this transformation is Dangsheng Technology, which has mastered the three in one technology solution of "positive electrode+electrolyte+interface layer". Its 500Wh/kg energy density index and thousand ton shipment scale are pushing solid-state batteries from the laboratory to the trillion dollar industrialization track.

Breaking through the bottleneck of liquid batteries, solid-state technology opens a new chapter in energy

The current mainstream liquid lithium batteries face a dual ceiling of energy density and safety performance. The energy density generally remains in the range of 250-350Wh/kg, which restricts the further improvement of electric vehicle range; However, the temperature of thermal runaway of liquid electrolyte is only about 130 ℃. In 2024, there were over 2000 self ignition accidents of new energy vehicles in China, and the pass rate of needle puncture test was less than 10%. At the same time, in a low temperature environment of -20 ℃, the battery capacity decays by more than 40%, making it difficult to meet the requirements of all scenario applications.

Solid state batteries have achieved technological breakthroughs with their revolutionary advantages: the energy density easily exceeds 400Wh/kg, reaching more than 1.5 times that of liquid batteries; The non flammable properties of solid electrolytes enable thermal runaway temperatures to exceed 300 ℃, and can pass extreme safety tests such as needle puncture and 200 ℃ hot box; The performance degradation is less than 5% in a low-temperature environment of -30 ℃, making it perfectly suitable for complex application scenarios. The Chinese Ministry of Industry and Information Technology has clearly listed solid-state batteries as the forefront breakthrough core direction of the lithium battery industry. It is expected that there will be a peak in the construction of semi-solid battery production capacity from 2025 to 2026, and all solid state batteries will enter the stage of large-scale production after 2030.

Trinity technology solution to overcome core industrialization challenges

Through years of technological accumulation, Dangsheng Technology has innovatively launched an integrated solution of "positive electrode material+electrolyte+interface layer", successfully breaking through the three major technological bottlenecks in the industrialization of solid-state batteries.

In the field of electrolytes, the company is the world's first solid electrolyte of chloride iodine composite sulfide, achieving dual standards of high ionic conductivity and high interfacial wettability. It can maintain stable contact without external pressure, covering the entire technical route of sulfides, oxides, and halides. Currently, it has achieved stable customized preparation and imported into leading battery enterprises such as Qingtao, Weilan, and Ganfeng.

In terms of positive electrode material technology, through innovative development of ultra-high nickel multi-element materials and lithium rich manganese based materials, the energy density of all solid state batteries has exceeded 500Wh/kg. This technology, when applied to new energy vehicles, can achieve a range of 1200 kilometers and a 10 minute charge to travel 800 kilometers. At present, the shipment of semi-solid positive electrode materials has reached the level of thousands of tons, and the bulk supply of materials for all solid state batteries has reached the level of 20 tons or more.

In response to the problem of interface side reactions, the development of specialized interface layer materials has significantly improved the efficiency of lithium ion transport. The cycle life of all solid state batteries exceeds 5000 times, which is more than three times that of liquid state batteries. This technical solution has been recognized by top customers in the industry and is accelerating the verification and import process.

Global layout accelerates, China locks in trillion dollar market opportunities

At the same time as technological breakthroughs, Dangsheng Technology is simultaneously promoting capacity building and global layout. In October 2024, the company launched the industrialization project of producing 3000 tons of solid electrolytes annually in Jintan, Jiangsu, including a production line for 2000 tons of oxide electrolytes and 1000 tons of sulfide electrolytes. After completion, it will become a leading global solid electrolyte supply base. In terms of overseas layout, the Finnish base project is rapidly advancing, which will meet the localization supply needs of international giants such as LG New Energy and SK On.

This layout is precisely in line with the pace of market development. Industry forecasts show that there will be a peak in the construction of semi-solid state battery production capacity from 2025 to 2026, and the production capacity of all solid state batteries will reach several tens of GWh after 2030. By 2035, the global shipment of solid-state batteries will exceed 900GWh, driving demand for electrolyte materials exceeding one million tons and a market space of trillions of yuan. Keywords: Wind Power New Energy News, Wind Power Energy Network

Dangsheng Technology's solid-state materials have been commercially applied in multiple fields. In the field of new energy vehicles, the energy density of the supporting semi-solid battery reaches 360-380Wh/kg, supporting multiple models to achieve a range of over 1000 kilometers; In the field of low altitude economy, the range of eVTOL electric aircraft has been increased by 60% -90%; In the field of high-end equipment, the endurance time of drones and humanoid robots has doubled. With the release of production capacity and technological iteration, this solid-state battery revolution led by China is reshaping the global new energy industry landscape. Editor/Yang Beihua