On November 12th, the "2025 World Power Battery Conference" was held in Yibin, Sichuan. Wang Yang, Chairman of the China Association for Science and Technology, stated that by the first half of this year, global sales of new energy vehicles had reached nearly 70 million units, with China accounting for nearly 45 million units. In the first three quarters of this year, China's power battery sales reached 786 GWh, and exports exceeded 129 GWh, representing year-on-year increases of 48.9% and 32.7%, respectively.
Wang Yang also mentioned the need to explore the performance potential of liquid batteries and promote the development of high-safety, high-energy-density batteries. He then discussed the market hotspot of solid-state batteries, noting that solid-liquid hybrid batteries are initially entering small-scale vehicle assembly. He emphasized the need to overcome technical bottlenecks such as manufacturing costs, cycle life, and environmental adaptability to advance industrial applications. Currently, all-solid-state batteries are in the R&D and pilot-scale testing stages, and continued efforts are needed to address key scientific issues and engineering and industrialization challenges related to all-solid-state batteries.
According to the latest statement by Wang Yang, Chairman of the China Association for Science and Technology, at the “2025 World Power Battery Conference,” all-solid-state batteries are currently still in the research and pilot-scale stages globally. This means that although the technology is showing promise, large-scale commercial applications still require overcoming the final hurdle from engineering to industrialization.
Meanwhile, the more transitional solid-liquid hybrid battery has made breakthroughs and begun to enter the small-scale vehicle assembly stage, effectively reducing the amount of organic electrolyte used and significantly improving battery safety. Currently, the industry is focusing its efforts on overcoming technical bottlenecks in manufacturing costs, cycle life, and environmental adaptability to accelerate the industrialization process.
The biggest challenge in the development of all-solid-state batteries lies in solving the solid-solid interface contact problem between the solid electrolyte and electrode materials. Fortunately, Chinese research teams have recently achieved a series of key breakthroughs in this field:
Self-healing “ionic glue” technology: The team at the Institute of Physics, Chinese Academy of Sciences, has developed an interface control technology based on iodine ions, which can automatically fill the micro-gaps at the interface during battery operation, achieving a tight bond between the electrode and the electrolyte.
Flexible Electrolyte Framework: The Institute of Metal Research, Chinese Academy of Sciences, has successfully developed a polymer electrolyte with excellent flexibility, capable of withstanding over 20,000 bends without deformation, while simultaneously increasing battery storage capacity by 86%.
Fluorinated High-Voltage Protection Layer: Tsinghua University has modified the electrolyte using fluorinated polyether materials to form a stable interface protection layer, ensuring the battery remains safe and stable even under high-voltage impacts during nail penetration tests or at 120°C.
Based on current technological advancements, we can anticipate that the first vehicles equipped with all-solid-state batteries will possess the following revolutionary performance characteristics:
Battery Performance Indicators
Energy Density: Expected to reach 400-500Wh/kg, far exceeding the most advanced liquid lithium-ion batteries currently available (approximately 300Wh/kg), which is fundamental to achieving a breakthrough in electric vehicle range.
Driving Range: With the same battery weight, the vehicle's driving range is expected to exceed 1000 kilometers, completely eliminating range anxiety for users.
Charging Efficiency: With superior ionic conductivity, all-solid-state batteries are expected to achieve ultra-fast charging speeds of 80% in 10-15 minutes.
Safety Performance: Completely eliminates the risks of liquid electrolyte leakage and combustion, maintaining a high level of safety even under high-rate fast charging or extreme abuse conditions.
The Equipment Industry Development Center of the Ministry of Industry and Information Technology has also clearly stated that it will systematically plan the research and development of next-generation batteries, including all-solid-state batteries, to accelerate the transformation and industrialization of new technologies.
The technological breakthrough of all-solid-state batteries will not only benefit the new energy vehicle sector; their high energy density and high safety characteristics will also provide core power support for several emerging industries:
Low-Altitude Economy: Providing a more durable and reliable power source for aircraft such as eVtol.
Humanoid Robots: Meeting their urgent need for high-energy-density, miniaturized batteries.
Electric Ships and Engineering Machinery: Expanding the application boundaries of battery technology in heavy machinery and special transportation vehicles.
Although the full commercialization of all-solid-state batteries is not expected to be truly realized until 2027-2028, current technological advancements indicate that we are already on the eve of a breakthrough in next-generation power battery technology. With the joint efforts of industry, academia, and research institutions, electric vehicles equipped with all-solid-state batteries will move from concept to reality, ultimately leading to another revolution in the entire transportation sector.
