Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizens for the delivery of clues about the past. CTOnews.com, July 11, a few days ago, the consulting firm TrendForce released a report that as major car manufacturers accelerate the investment and research and development of solid-state batteries, all-solid-state batteries with highly active positive and negative materials are expected to start mass production around 2030-2035, when the energy density of lithium batteries can reach 500Wh/kg, and the corresponding range is about 2-3 times that of liquid lithium batteries, which equals the endurance of fuel vehicles (that is, after fuel vehicles are filled with fuel. The farthest mileage that can be driven.

▲ figure source TrendForceCTOnews.com noted that current new energy vehicle owners need to use liquid lithium batteries, which can be divided into lithium iron phosphate batteries and nickel-cobalt-manganese batteries (ternary lithium batteries) according to different cathode materials, and their energy densities are approaching their respective limits.

According to the TrendForce report, the current range of ternary lithium battery models is about 500-600km, while that of lithium iron phosphate batteries is about 300-500km, which is still 2-3 times lower than that of fuel cars. At the same time, the more active materials with lithium batteries, the traditional liquid electrolyte has a higher risk of thermal runaway in the process of charge and discharge. The solid electrolyte is stable in structure and can effectively prevent the battery from short circuit.

At present, Japanese car companies mainly distribute sulphide solid electrolytes, such as Toyota and Panasonic to set up a joint venture "Prime Planet Energy&Solutions" to jointly develop solid-state batteries and announce that they will produce all-solid-state battery cars in 2027.

European and American car companies have a layout in the three technological routes of sulfides, oxides and polymer electrolytes. For example, Mercedes-Benz is one of the major investors in solid-state battery company Huineng Technology.

Most domestic car companies distribute oxides, and there are already mass production of semi-solid battery products, such as Lailai, Dongfeng, Selis and other car companies, which are expected to have mass production of models with semi-solid batteries as soon as this year, making China the fastest country in the world to load semi-solid batteries. However, the energy density of semi-solid-state battery is about 300-400Wh/kg, which is still significantly lower than that of all-solid-state battery.

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