Since the end of 2022, the "price war" of new energy electric vehicles has lasted for more than two years, and now the smoke has not dissipated, and even intensified.
When will the price war end? Why do the trams, which are obviously more intelligent, still need to continue to reduce prices in order to seize the market? Behind this "battle", what kind of concerns does the market reflect about tram products?
Endurance is perhaps one of the most important answers to the above questions.
So, in order to alleviate the anxiety of the battery life of new energy electric vehicles, what other articles can be done on the battery cell?
Ruipu Lanjun has found a new solution.
Following the release of 158Ah and 200Ah models of "Wending" batteries at the Shanghai Auto Show last year, on April 25, Ruipu Lanjun brought the new PHEV plug-in hybrid battery members 148 series, 194 series, 220 series (Wending family 2.0 series) and 141Ah and 155Ah ultra-fast charging cells at the Beijing Auto Show, trying to break the "boundary of gasoline-electric range".
In just one year, what new breakthroughs have Ruipu Lanjun achieved in the field of battery cell technology, and how will it continue to help the battery life to "reach the peak"?
Starting with energy density, optimize the cell structure to continue the "volume" battery life
For a long time, the length of the power battery mileage is one of the key factors that determine whether the new energy electric vehicle products can "stand out" among similar competing products.
In recent years, looking at the new energy vehicle products that have been launched one after another, their cruising range has exceeded 1000km, which seems to have become a key node for OEMs to compete with each other.
比如赛力斯华为智选SF5(NEDC综合续航1003km)、理想ONE(NEDC综合续航1080km)、蔚来ET7(NEDC综合续航1000km)、比亚迪宋PRO DM-i(NEDC综合续航1090km)、埃安LX PLUS(NEDC综合续航1008km)等。
It is important to know that the characteristics of the battery, such as energy density, cycle life, charging speed, etc., determine the endurance performance of the power battery.
Specifically, increasing the energy density of the battery cell can store more energy under the same volume or weight, thereby extending the battery life, optimizing the cycle life of the battery can extend the service life of the battery and reduce the frequency of battery replacement, and at the same time, increasing the charging speed of the battery cell can shorten the charging time and improve the charging efficiency of the user.
In other words, the performance of the battery cell directly affects the battery life, and through the continuous improvement of battery cell technology and materials, the battery life performance can be improved to meet the demand of new energy electric vehicles for battery life.
In view of this, different from the general approach in the industry from the dimension of material and volume, Ruipu Lanjun innovates the general technology of battery cells in a different way, starting from the structure, shortening the tab length by 6O%, and changing the connection method between it and the adapter. The integrated welding technology is used to make the internal structure of the battery cell realize the integrated connection, reduce the original top space from 15 mm to 8 mm, and effectively improve the space utilization rate by more than 7%.
In terms of energy density, Ruipu Lanjun's "Asking the Top" technology can make the volume energy density of the square aluminum shell lithium iron phosphate battery reach the world's leading 450Wh/L, increase the capacity density by 5-7%, and increase the power by 8-10%, and the technology is also suitable for the square aluminum shell ternary battery.
It is reported that the general technology of the battery cell of Ruipu Lanjun Wending battery can make the cruising range of the medium nickel ternary battery exceed 1000km, and the high-nickel ternary power battery is expected to exceed 1200km.
Generally speaking, behind innovative technologies and high-performance products, there is always a higher cost attached. This is obviously not applicable to power battery manufacturers and OEMs who urgently need to reduce supply chain costs.
Ruipu Lanjun is deeply concerned about this. In order to assist downstream manufacturers to reduce costs and increase efficiency, the company continues to innovate in technology, and at the cell level, Ruipu Lanjun Peak Technology will save more than 5% in raw materials and controls.
At the same time, the new generation of green CTP battery system using a new generation of Wending 175Ah battery cells continues to break through the power of the whole package, replacing the existing NCM products with LFP, and the cost of the whole package can be reduced by more than 15% under the same mileage.
Focusing on the incremental market, PHEV plug-in hybrid cells boost the penetration rate of electric vehicles "step by step"
In the final analysis, what the market needs is new energy electric vehicles with long endurance and preferential prices.
For a long time, pure electric models and fuel models seem to be at both ends of the scale, competing against each other, and it is difficult to distinguish between victory and defeat. In terms of battery life, fuel vehicles are superior, and in terms of cost performance and purchase cost, electric vehicles are obviously more advantageous.
In other words, NEV companies need to find a balance between fuel vehicles and electric vehicles to meet the needs of the market.
As a result, plug-in hybrid power, which has both a longer range and a lower price, has become a transitional form of power for automobiles from the fuel era to the electrification era. Taking Qin PLUS as an example, on the premise of longer battery life, its plug-in version is nearly 30,000 yuan cheaper than the pure electric version. This makes plug-in hybrid models imperceptibly push consumers in the fuel vehicle market to the electric vehicle market. Moreover, in most cities with restricted licenses, plug-in hybrid models and pure electric models enjoy the same green card and purchase tax preferential policies, which is why most people choose new energy vehicles.
According to the auto market data released by the China Passenger Car Association from April 1 to 14, the retail sales of new energy passenger vehicles in China officially exceeded 50%, reaching 50.39%.
In short: for 10 people to buy a car, 5 people choose new energy vehicles.
Among them, plug-in hybrid models have played an important role. According to data from the China Association of Automobile Manufacturers and the China Automobile Dealers Association, PHEV models increased from 27.8% in April to 37.8% in March.
Obviously, in the process of global vehicle electrification, plug-in hybrid has become an incremental market that cannot be ignored.
Ruipu Lanjun has extremely keen insight into market demand. In response to the plug-in hybrid market, which has great growth potential, Ruipu Lanjun released the 2.0 series of the Wending family, the new PHEV plug-in hybrid battery cell members 148 series, 194 series and 220 series, continuing to innovate battery cell technology and helping plug-in hybrid power models to have a longer battery life.
It is reported that the energy density of Ruipu Lanjun PHEV plug-in hybrid battery cells will reach 180Wh/kg, which is 1.21-1.28 times that of BYD's current mass production of blade batteries. It can achieve full coverage of 100-300km in pure electric mode, realizing daily urban commuting and even cross-city long-distance battery life.
At the same time, Ruipu Lanjun's three PHEV plug-in hybrid cells 148 series, 194 series and 220 series, the battery 10%-80% SOC charging rate reaches 2-4C fast charging, which also solves the demand for fast charging for hybrid models.
However, whether it is pure electric or plug-in hybrid models, although the anxiety of the range of new energy electric vehicles is constantly being alleviated, the problem of "trams are sad to pass Shanhaiguan" is still in front of the new energy vehicle industry, which will also hinder the further improvement of the market penetration rate of new energy vehicles.
First, in extremely cold weather conditions, the rate of electrochemical reaction of the battery decreases, resulting in a decrease in its performance, which affects the cold-start capability. Secondly, most of the new energy vehicle batteries use lithium-ion batteries, and the capacity of lithium-ion batteries will drop significantly at low temperatures, which cannot meet the needs of vehicle cold starts. Finally, the internal resistance of the battery will increase significantly during cold start, which in turn will affect the discharge ability of the battery, making the vehicle start-up process difficult.
To this end, Ruipu Lanjun actively set out to solve the problem of low temperature start of power batteries. It is understood that its PHEV series battery cells can assist the power battery to achieve cold start at an extremely low temperature of -35 °C and when the battery's power is extremely low (3% SOC).
It is reported that up to now, after the launch of 148, 194 and 220 series PHEV cells and 141Ah lithium iron phosphate and 155Ah ternary lithium supercharging cells, plus the previous LFP-175, NCM-200, R300, R600 and other products, Ruipu Lanjun has completed the full coverage of pure electric, extended range and plug-in hybrid models in the field of new energy passenger vehicles.
In-depth insight into market pain points, continuous technical research capabilities, rapid product iteration cycles, and efficient mass production implementation have all constituted Ruipu Lanjun's high-quality market reputation.
Gasgoo was informed that public information shows that in the field of power market, Ruipu Lanjun has reached a cooperative relationship with SAIC, Wuling, Dongfeng Nissan, smart, Leapmotor, SAIC Maxus, Hechuang Automobile, etc., covering the three mainstream automotive fields of passenger cars, commercial vehicles and special vehicles.
We can already foresee that in the near future, Ruipu Lanjun will continue to break through the difficulties of electric vehicle endurance, and help the new energy electric vehicle industry to achieve "electric vehicles last longer than oil vehicles" and "refueling faster than refueling".