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①the 2024 world power battery conference opened yesterday in yibin city, sichuan province. at this exhibition, battery companies, car companies, etc. displayed solid-state battery products, pressing the "accelerator" for the industrialization of all-solid-state batteries; ②solid-state battery products from various companies competed to appear, and solid-state battery technology, routes, and mass production expectations once again became the focus. the booths of future cutting-edge application scenarios of solid-state batteries such as low-altitude economy and humanoid robots were hot.

cailianshe news, september 2 (reporter zeng chuchu liu yue)the 2024 world power battery conference opened yesterday in yibin city, sichuan province. at this exhibition, battery companies, car companies, etc. displayed solid-state battery products, pressing the "accelerator" for the industrialization of all-solid-state batteries.

cailianshe reporters observed on the scene that solid-state battery products from various companies were competing to make their debut, and solid-state battery technology, routes, and mass production expectations once again became the focus. booths for future cutting-edge application scenarios of solid-state batteries, such as low-altitude economy and humanoid robots, were hot.

solid-state batteries are coming in full force, battery companies, car companies, etc. are scrambling to make layouts

the concept of solid-state batteries has always been the "darling" of the capital market. with the vigorous development of the new energy industry and the increasing demand for high-energy-density, high-safety batteries, solid-state batteries are the recognized trend of the next generation of lithium battery technology and are hailed as the "holy grail" of the new energy era.

cailian reporter visited the booths of several solid-state battery-related companies at the world power battery conference and learned that different companies have taken different routes for solid-state batteries, and the definition and naming of solid-state batteries and semi-solid-state batteries are also different.

(photo source: photo taken by cailianshe reporter)

going to the booth, cailianshe reporters noticed that the solid batteries displayed at academician ouyang minggao's workstation are divided into all-solid-state and high-safety solid-state batteries. on-site staff introduced that the positive and negative electrode materials of high-safety batteries are different from those of liquid lithium batteries, and solid electrolytes will be coated on the diaphragm, which is a semi-solid-state battery.

on-site staff mentioned that the manufacturing process of semi-solid-state batteries is similar to that of existing liquid lithium batteries, but all-solid-state batteries will be "completely different concepts". the characteristic of all-solid-state batteries is that there is no diaphragm. currently, each company has different development routes, different material selections, and different processes. it is difficult to predict what the future form will be.

it is understood that the 4gwh mass production line of high-safety batteries at academician ouyang minggao's workstation will go into mass production in october next year, and the 1gwh pilot line will go into mass production in june next year.all-solid-state batteries are only laboratory products, and high-safety batteries have been put into small test lines and small batches have been supplied. "major customers include drones and electric motorcycles, which are using them because their high specific energy and high safety are unmatched by liquid batteries," the aforementioned staff member told cailianshe reporters.

(photo source: photo taken by cailianshe reporter)

dongchi new energy displayed semi-solid lithium iron phosphate batteries. on-site staff told cailianshe reporters that the company has put into production a pilot line with an annual production capacity of 500mwh. it is reported that dongchi new energy is a cooperative enterprise of listed company guansheng shares to enter the solid-state battery market. the two parties have established a joint venture company, guansheng dongchi, and plan to invest in a new semi-solid lithium iron phosphate battery construction project. the land acquisition has been completed and the factory is under construction. the project construction time is expected to be 30 months.

(photo source: photo taken by cailianshe reporter)

as for car companies, gac aion's booth displayed the company's previously released haobo all-solid-state battery samples.the on-site staff told cailianshe reporters that haobo's all-solid-state battery cells are still in the pilot stage. "the 30ah battery cell is still too small to be installed in the car, and the capacity needs to be increased before it can be (applied)."

dongfeng group exhibited a new generation of solid-state batteries with a cell energy density of more than 405wh/kg. according to the on-site staff, the solid-state battery is still semi-solid, with high-nickel ternary materials used for the positive electrode material, highly stable modified lithium metal negative electrode used for the negative electrode material, and a new in-situ solidified composite electrolyte. this product belongs to the third generation of semi-solid-state batteries. previously, dongfeng motor's first generation of semi-solid-state batteries has been demonstrated and operated, and the second generation is in the stage of vehicle installation and loading verification.

(photo source: photo taken by cailianshe reporter)

from the perspective of industrialization progress,at present, the mass production time of all-solid-state battery products released by mainstream domestic battery companies is basically around 2026-2030.at the high-end dialogue on new applications of power batteries held before the opening of the 2024 world power battery conference, sun xueliang, foreign academician of the chinese academy of engineering, academician of the royal society of canada, and the canadian academy of engineering, said that solid-state batteries, as a new generation of battery technology, have high safety, high energy density and fast charging capabilities. they not only enhance the potential of the electric vehicle industry, but also open up opportunities in new fields such as electric aviation, low-altitude aircraft, robots and military industry. the industry is currently working on solving problems such as new solid-state electrolytes and solid-solid interface contact, and it is expected to be implemented in the next 5-10 years.

in addition, the exhibition booths of cutting-edge application scenarios such as low-altitude economy and humanoid robots were very popular. in the low-altitude economy exhibition area, the ae200 exhibited by geely technology group's wofei changkong is a 5-6-seat tilt-rotor pure electric vertical take-off and landing manned evtol. it is understood that wofei changkong is the first manned evtol company in the country to obtain the approval of the civil aviation administration of china for application and acceptance and to start airworthiness certification. the on-site staff told cailianshe reporters that the aircraft has begun to use semi-solid batteries during the experiment.

(photo source: photo taken by cailianshe reporter)

in the humanoid robot exhibition area, tesla displayed the optimus second-generation humanoid robot, which has 28 degrees of freedom, including 11 degrees of freedom in the hands, enabling it to operate tools and perform useful tasks.

(photo source: photo taken by cailianshe reporter)

in addition, tesla's cyber ​​​​off-road tourer that "can travel on the surface of any planet" also attracted a lot of attention.

(photo source: photo taken by cailianshe reporter)