On August 16, CATL released the world's first 4C supercharged battery that uses lithium iron phosphate material and can be mass-produced--Shenxing supercharged battery. This LFP battery has achieved "charging for 10 minutes and a battery life of 400 kilometers." The ultra-fast charging speed and the cruising range of more than 700 kilometers greatly alleviate the user's anxiety about energy replenishment and fully open the era of overcharging of new energy vehicles. This is the world's first lithium iron phosphate battery that supports 4C charging.

Shenxing uses a new graphite anode, a new electrolyte formula, a thinner and safer separator, and better ion transmission. The battery reduces heat generation and is equipped with a new advanced battery management system (BMS). CATL claims that the Shenxing battery is suitable for any car model.

Redefining the lithium iron phosphate battery（Lifepo4 Battery）, greatly alleviating the energy anxiety of the public

Improve the speed of lithium ion extraction: In terms of positive electrode speed increase, Shenxing supercharged battery adopts super electronic network positive electrode technology, fully nano-sized lithium iron phosphate positive electrode material, and builds a super electronic network, which reduces the resistance of lithium ion extraction and makes the charging signal fast. response.

Improving lithium ion attachment efficiency: In the innovation of negative electrode materials, Shenxing supercharged battery adopts the second-generation fast ion ring technology newly developed by CATL, which modifies the graphite surface, increases lithium ion intercalation channels and shortens the intercalation distance, for ions Conduit builds a "highway". At the same time, the Shenxing supercharged battery uses a multi-gradient layered pole piece design to achieve a perfect balance between fast charging and battery life.

Reduce the resistance of lithium ion conduction: In terms of electrolyte conduction, CATL has developed a new ultra-high conductivity electrolyte formula, which can effectively reduce the viscosity of the electrolyte and significantly increase the conductivity. In addition, CATL also optimizes the ultra-thin SEI film to further reduce the conduction resistance.

Improving the liquid phase transmission rate of lithium ions: CATL also improves the high porosity and low tortuosity pores of the isolation membrane, thereby improving the liquid phase transmission rate of lithium ions.

From ultra-fast charging to long battery life and high safety, comprehensive performance is improved

While taking the lead in realizing 4C supercharging, Shenxing supercharged battery also adopts structural innovation, intelligent algorithm and other methods to achieve long battery life, full temperature range lightning fast charging and high safety performance.

Battery life of more than 700 kilometers: Based on CTP3.0, CATL pioneered the integrated grouping technology, which achieved high integration and high grouping efficiency, enabling Shenxing supercharged batteries to break through the performance limit of lithium iron phosphate Long battery life of more than one kilometer.

Fast charging at low temperature is like normal temperature: at normal temperature, Shenxing supercharged battery can be charged to 80% SOC in 10 minutes. At the same time, CATL adopts the battery temperature control technology on the system platform, which can quickly heat up to the optimal working temperature range in a low temperature environment, and can be charged to 80% in 30 minutes even in a low temperature environment of -10°C. Zero hundred acceleration in the state does not attenuate.

Putting safety first: Shenxing supercharged battery uses an improved electrolyte and is equipped with a high-safety coating diaphragm, which provides "double insurance" for battery safety. In addition, CATL controls the global temperature field through intelligent algorithms, creates a real-time fault detection system, overcomes many safety challenges brought about by rapid energy replenishment, and makes this CATL battery have the ultimate level of safety.

Mass production will be achieved by the end of 2023, and the era of overcharging will be fully opened

At the press conference, CATL Chief Scientist Wu Kai said, "The future of power battery technology must first be oriented to the forefront of the world, and second, it must be oriented to the main battlefield of the economy. Current users are beginning to shift from pioneer users to mass users, and we want more ordinary people to use it. Cutting-edge technology, enjoying the dividends of technological breakthroughs."

Thanks to its ability in extreme manufacturing, CATL currently has a rapid transformation chain from technology to product to commodity, thus promoting the rapid mass production of Shenxing supercharged batteries. According to Gao Huan, CTO of CATL's Domestic Passenger Vehicle Division, Shenxing will be mass-produced by the end of this year, and electric vehicles equipped with Shenxing supercharged batteries will also be launched in the first quarter of next year.