These 'hardcore' technologies showcase China's strength
hit：455 date：2026-03-08
Solid state batteries, as the core technology direction of the next generation of lithium batteries, have broad application prospects in fields such as new energy vehicles and low altitude economy. Chinese scientists have made a number of new advances in this cutting-edge technology.
Recently, Chinese scientists have successfully overcome the bottleneck of all solid state lithium metal batteries, achieving a leapfrog upgrade in solid-state battery performance: previously, a 100 kilogram battery could only support a range of up to 500 kilometers, but now it is expected to break through the 1000 kilometer ceiling. How was this achieved? To understand this breakthrough, we need to understand why solid-state batteries have not yet been widely introduced to the market.
Battery charging and discharging rely entirely on lithium ions running back and forth between the positive and negative electrodes. It can be said that lithium-ion batteries are the "delivery guys" in batteries, responsible for transporting electrons from the positive electrode to the negative electrode, and solid-state electrolytes are their "highways" for delivery. Commonly used sulfide solid electrolytes have high hardness and are as brittle as ceramics; But the lithium metal electrode is as soft as rubber putty. When these two materials are bonded together, it is like sticking rubber putty to a ceramic plate, with potholes at the interface, which affects the charging and discharging efficiency of the battery due to the difficult path.
Nowadays, multiple research teams in China have taken action, and three key technological breakthroughs have enabled the seamless integration of "ceramic plates" and "rubber clay", which is expected to solve the contact problem of solid interfaces and completely break through the bottleneck of solid-state battery life.
The first is the "special glue" - iodine ion developed by the Institute of Physics of the Chinese Academy of Sciences in conjunction with several scientific research teams. When the battery is working, iodine ions act like "traffic police" and run along the electric field to the interface between the electrode and electrolyte. Actively attracting passing lithium ions, like quicksand, wherever there are small gaps or holes, they automatically flow over to fill them. By sewing and repairing, the electrode and electrolyte can adhere tightly on their own, thus breaking through the biggest bottleneck for the practical application of all solid state batteries.
The second is the "flexible transformation technique" of Institute of Metals, Chinese Academy of Sciences. Scientists have created a "skeleton" for electrolytes using polymer materials, making batteries resistant to tension and pulling like upgraded plastic wrap. Bending for 20000 times and twisting into Fried Dough Twists shape are in good condition, and they are not afraid of daily deformation. At the same time, some "chemical small parts" are added to the flexible skeleton, some of which can make lithium ions run faster, while others can "grab" more lithium ions, directly increasing the battery's storage capacity by 86%.
The third is the "fluoride reinforcement" of Tsinghua University. The research team used fluorinated polyether materials to modify electrolytes. Fluorine has extremely strong high-voltage resistance, and the "fluoride protective shell" on the electrode surface can prevent high-voltage "breakdown" of the electrolyte. This technology has undergone needle puncture testing and 120 ℃ high-temperature box testing in a fully charged state, and will not explode, ensuring safety and battery life "dual online".
The future has arrived, and breakthroughs in solid-state battery technology are turning the "future" of new energy travel into a "reality".
Delivery of the world's largest lifting tonnage DC wind power installation ship
On October 15th, the world's first fully DC powered wind power installation vessel with lifting capacity exceeding 3000 tons, the "Nordic Wind", was delivered in Yantai, Shandong, filling the technical gap of the world's super large fully DC wind power installation vessel.
The "Nordic Wind" has a total length of 146 meters and a maximum displacement of 56000 tons. It is equipped with a 3200 ton main crane and a 2-level dynamic positioning system, and can operate stably in harsh sea conditions such as 8-level winds and waves in the European North Sea and temperatures as low as minus 15 ℃. It is also compatible with the transportation and installation of mainstream 15 MW and 20 MW wind turbines. Compared with traditional wind power installation ships, by adopting a full DC power supply mode, the weight of the empty ship is reduced, the load capacity of the ship is improved, and carbon reduction can be achieved from the source of energy utilization.
According to calculations, the carbon emissions required for installing wind power equipment on this ship are only 30% of those of traditional AC powered ships, and the carbon emissions per megawatt can be reduced by more than 70%. At present, global offshore wind power is accelerating its development towards deep sea and large capacity, and the requirements for wind power installation ships with "large tonnage+low emissions" are becoming increasingly strict. The successful delivery of the "Nordic Wind" marks China's mastery of core technologies such as full DC power supply and ultra large main crane integration in the field of ultra large wind power installation equipment, adding key chips to China's participation in international competition for offshore equipment.
During the 14th Five Year Plan period, China took the lead in formulating over a thousand international standards
Since the 14th Five Year Plan, China has actively participated in and taken the lead in formulating a series of international standards. Continuously making breakthroughs in key areas such as new energy, photovoltaics, and home appliances, China contributes to the sustainable development of the global economy and technology.
At a new energy technology enterprise in Fujian, the reporter saw that a batch of power battery cells are being produced intensively and will soon be exported to the United States. The standards used in this batch of products are the international standards for new energy vehicle power battery systems developed by China.
In the past, due to the lack of unified standards, different customers could only define their security needs based on their own experience, resulting in a "disorderly personalization" situation. Nowadays, the new standards led by China have established a recognized safety framework.
