"I'll switch to an electric car when solid-state batteries arrive." "I'll only drive a gasoline car until solid-state batteries are available."
The frequent releases of new solid-state battery products have led many to mistakenly believe that solid-state batteries are just around the corner. But in fact, that's a long way off!
Recently, the China Society of Automotive Engineers released the "Energy-Saving and New Energy Vehicle Technology Roadmap 3.0," which clearly outlines several key technology development milestones.
Among them, all-solid-state batteries are expected to achieve small-scale application by 2030, and large-scale global promotion is anticipated by 2035. At that time, the overall performance, cost, and environmental adaptability of the batteries will better meet consumer needs.
On October 23, at the 2025 New Energy Battery Industry Development Conference, Xu Zhongling, Dean of the Central Research Institute of Sunwoda Power Technology Co., Ltd., released a new polymer solid-state battery product-"Xin·Bixiao." This is Sunwoda's first-generation all-solid-state battery product, with an energy density of 400Wh/kg.
Regarding the timeline for mass production, Liang Rui, Vice President and CSO of Sunwoda Electronic Co., Ltd., stated that optimistically, all-solid-state batteries might be produced in small batches after 2030, and they will coexist with liquid lithium batteries for a long time.
Liang Rui said, "Japanese and American companies have claimed to achieve the industrialization of all-solid-state batteries by 2027. I personally feel that this is somewhat overconfident. The most optimistic scenario is that small-batch production might occur after 2030, and it is unlikely to replace liquid lithium batteries on a large scale. Lead-acid batteries have been in use for over 100 years, and solid-state batteries and liquid batteries will coexist for a long time."
Liang Rui believes that the process of cultivating commercial products should be viewed rationally, as it has its own inherent laws.
Short-term prospects are slim! Solid-state batteries are still a long way off: small-scale applications won't be available until 2030; liquid lithium batteries will exist for a long time.
Informed sources: Semi-solid batteries will be renamed solid-liquid batteries
Today, according to a report by First Financial Daily, sources revealed that to prevent market confusion between semi-solid and solid-state batteries, relevant authorities are preparing a new document to uniformly name "semi-solid batteries" as "solid-liquid batteries."
Semi-solid batteries are batteries with a partially added liquid electrolyte, representing a "compromise" on the road to fully solid-state batteries.
The report states that the industry has a clear distinction between semi-solid and fully solid-state: "semi-solid-liquid" solutions are generally called "semi-solid batteries," while those closer to fully solid-state batteries with less liquid electrolyte can be called "quasi-solid-state batteries."
Compared to the lithium-ion batteries commonly used in current new energy vehicles, solid-state batteries offer advantages such as higher safety, higher energy density, longer lifespan, and faster charging speeds.
In February of this year, a representative from the China EV100 stated that in the new energy vehicle sector, all-solid-state batteries are expected to begin being installed in vehicles by 2027, and mass production applications are anticipated by 2030.
At the 2nd China All-Solid-State Battery Innovation and Development Summit Forum this year, Academician Ouyang Minggao of the Chinese Academy of Sciences, while outlining the solid-state battery technology roadmap, predicted that the first generation of all-solid-state batteries based on sulfide electrolytes will achieve mass production between 2025 and 2027, with an energy density of 400 Wh/kg; the second generation will be mass-produced between 2027 and 2030, with an energy density increased to 500 Wh/kg; and the third generation is planned for launch between 2030 and 2035, targeting an energy density exceeding 600 Wh/kg.
To prevent confusion with solid-state batteries, insiders say semi-solid-state batteries will be renamed solid-liquid batteries.
National team takes action! Solid-state batteries achieve a range exceeding 1000 kilometers.
Recently, multiple mainstream media outlets reported that Chinese scientists have successfully overcome the critical hurdle of all-solid-state lithium metal batteries, enabling a leapfrog upgrade in performance. Previously, a 100kg battery could only support a maximum range of 500 kilometers; now, it is expected to exceed 1000 kilometers.
Dongfeng Motor recently announced that, shouldering the mission of a "national team," it has continuously promoted the research and development and industrial layout of solid-state battery technology, and has achieved a series of results.
Currently, Dongfeng Motor has built an independent and controllable solid-state battery supply chain system, successively mastering core technologies such as electrolytes, separators, and in-situ curing, forming 240Wh/kg and 350Wh/kg solid-state battery products, with the maximum range successfully exceeding 1000 kilometers.
While possessing high energy density, it also boasts extremely high safety characteristics. It not only passes the GB38031-2020 mandatory testing but also passes rigorous tests such as puncture, 50% compression deformation, and a 150℃ high-temperature hot chamber, achieving advanced performance and safety levels in the industry.
National Team Takes Action! Dongfeng Motor: Solid-State Battery Achieves Over 1000km Range, Passes Puncture and 50% Extrusion Deformation Tests
Further Reading:
Battery charging and discharging relies entirely on lithium ions "traveling back and forth" between the positive and negative electrodes. Lithium ions are like the "deliverymen" in the battery, responsible for moving electrons from the positive to the negative electrode, and the solid electrolyte is the "highway" that "delivers" them on.
Commonly used sulfide solid electrolytes are hard and brittle like ceramics, while lithium metal electrodes are soft like clay. When these two materials are bonded, it's like sticking clay to a ceramic plate; the interface is bumpy and difficult to navigate, affecting battery charging and discharging efficiency. This is precisely why solid-state batteries haven't yet widely entered the market.
Now, multiple research teams in my country have made breakthroughs in three key technologies, achieving a seamless fit between the "ceramic plate" and the "clay," potentially solving the contact problem at the solid-solid interface and completely overcoming the range bottleneck of solid-state batteries.
"Special Adhesive"-Iodine Ions
When the battery is working, iodine ions travel along the electric field to the interface between the electrodes and the electrolyte, actively attracting passing lithium ions. They automatically fill any small gaps or holes, allowing the electrodes and electrolyte to adhere tightly, thus overcoming the biggest bottleneck to the practical application of all-solid-state batteries.
"Flexible Transformation"
Scientists at the Institute of Metal Research, Chinese Academy of Sciences, used polymer materials to create a "skeleton" for the electrolyte, making the battery as resistant to stretching and pulling as an upgraded version of cling film. It remains intact even after being bent 20,000 times and twisted into a spiral shape, completely unaffected by everyday deformation. Adding "small chemical components" to the flexible skeleton allows lithium ions to travel faster, while others can "capture" more lithium ions, directly increasing the battery's energy storage capacity by 86%.
"Fluorine Reinforcement"
A research team at Tsinghua University modified the electrolyte using fluorinated polyether materials. Fluorine has extremely strong "high-voltage resistance," and the "fluoride protective shell" on the electrode surface can prevent high voltage from "breaking down" the electrolyte. This technology has passed needle penetration tests and 120°C high-temperature chamber tests when fully charged without exploding, ensuring both safety and battery life.
