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QINGHE ANI NEW ENERGY AUTO PARTS CO.,LTD
 
Solid-state battery technology continues to develop, and industrialization is approaching
Source: | Author:ANI EV Charger Manufacture | Published time: 2025-06-08 | 58 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
Liquid batteries face thermal runaway risks due to the flammability, corrosiveness of their liquid electrolyte solvents and lithium dendrites. In contrast, solid-state batteries are non-flammable, thermally stable, can suppress lithium dendrites, and have higher energy density. In 2024, automotive, smartphone, battery and materials companies announced progress in the solid-state battery industry, such as vivo releasing a semi-solid battery-equipped phone series and Tailan New Energy developing a high-energy-density all-solid-state battery. This year, policies from relevant departments involve solid-state batteries, and the Ministry of Industry and Information Technology's new safety requirements may accelerate solid-state battery tech advancement. The technological iteration path from liquid to solid-state batteries is expected to be electrolyte - anode - cathode. Current mainstream solid electrolyte routes are oxides, sulfides, and polymers, with halides gaining attention; the anode will use graphite and silicon - carbon in the short term and metallic lithium in the long term; high energy density needs will drive cathode development towards high - nickel and lithium - rich materials.

Due to the flammability, corrosiveness, and the presence of lithium dendrites in the organic solvents of the liquid electrolyte in liquid batteries, there is a possibility of thermal runaway. In contrast, solid-state batteries have non-flammable properties, strong thermal stability, and can suppress the formation of lithium dendrites, along with higher energy density; semi-solid-state can reach 350 Wh/kg, quasi-solid-state can achieve 400 Wh/kg, and all-solid-state can exceed 500 Wh/kg.


In 2024, automotive companies, smartphone manufacturers, battery and materials factories announced their progress in the solid-state battery industry. Among them, vivo released the industry's first X Fold3 series equipped with a semi-solid blue ocean battery; Tailan New Energy developed a fully solid-state lithium metal battery with an energy density of 720Wh/kg; Huawei disclosed its patent layout for sulfide batteries; and Xinjie Energy's lithium metal solid-state battery was installed on EHang's eVTOL.


Since the beginning of this year, some policy documents issued by the Ministry of Industry and Information Technology, the Zhuhai Ministry of Industry and Information Technology, and the Shanghai Municipal Government have all involved solid-state batteries. In March of this year, the Ministry of Industry and Information Technology set the 'Safety Requirements for Power Batteries for Electric Vehicles,' which is stricter in safety performance compared to the 2020 version, and it is expected to accelerate the technological advancement of solid-state batteries.


In the transition from liquid batteries to solid-state batteries, the anticipated technological iteration path is electrolyte-anode-cathode. The current mainstream technological routes for solid electrolytes include oxides, sulfides, and polymers, while halide routes have gradually attracted market attention in recent years; the anode will mainly use graphite and silicon-carbon in the short term, and is expected to switch to metallic lithium in the long term; the high energy density requirements of solid-state batteries will drive the cathode to develop towards high nickel and lithium-rich materials.