As an innovative technology in the field of electric vehicles, the unique arrangement of blade batteries brings significant advantages to vehicle design while improving battery performance. This article will delve into the development history, technical advantages and future prospects of blade batteries.
The blade battery is not a completely new battery, but a layout based on the characteristics of lithium iron phosphate. We need to correct a common misconception that the biggest advantage of blade batteries is stability and safety. In fact, the advantages of blade batteries cover many aspects, including explicit and implicit advantages.
The implicit advantage is mainly reflected in the improvement of security and stability. Due to the upgrade of the battery structure, the blade battery shows higher safety and stability in practical applications. These advantages are not the only ones, and we also need to focus on those that are more explicit.
Blade batteries improve the volume utilization rate of batteries by effectively reducing the number of modules. This improvement not only reduces the weight of the battery, but also increases the "charge" of the battery pack. Most importantly, the volume and thickness of the entire battery pack have been reduced by improving volume utilization. The obvious advantage of this technology is that even the most powerful models have a battery capacity, such as a maximum battery capacity of 85The 4kWh BYD Han EV can also maintain a certain amount of ground clearance without encroaching on the passenger compartment space.
This design not only does the bottom battery pack not encroach on the front and rear space, but also makes the floor lower. The advantage of the low floor is that it provides a suitable vertical movement space, so as to achieve a space performance comparable to that of a combustion engine vehicle. Even the BYD Han EV, which is controversial in terms of suspension materials and other aspects, has rarely been complained about in terms of ride experience, which is a big affirmation of the blade battery design.
Compared to the problems that exist with some other electric vehicles, such as a high sitting position and uncomfortable rides, the advantages of blade batteries are becoming more and more significant. Much of this problem stems from the large size of the battery pack, which encroaches on the occupant compartment space. BYD's blade battery successfully avoids this problem by improving volume utilization and provides passengers with a more comfortable riding experience.
In addition to space advantages, blade batteries have also achieved remarkable achievements in terms of cost, reliability and endurance. First of all, the cost of the blade battery has been relatively low, so that it can be applied to the most affordable electric models, such as models priced at about 100,000 yuan. Secondly, although there may be reports of spontaneous combustion of blade batteries on the Internet, this ratio is quite low from the actual situation of BYD's annual sales of 3 million units, indicating that blade batteries are reliable in practical applications.
The blade battery also performs quite strongly in terms of endurance. By equipping entry-level models with large battery packs at a lower cost and increasing user acceptance without taking up space, blade batteries have succeeded in meeting consumer demand for range. The characteristics of BYD's entire range of tram attributes, that is, users do not complain too much about poor space and uncomfortable rides, are precisely due to the design of the blade battery.
The evolution of technology is one of the key factors in the success of blade batteries. From the earliest CTM to today's CTP and CTC technologies, the continuous integration and reorganization of battery chips has promoted the upgrading of battery packs. Among them, the improvement of volume utilization is one of the biggest improvements. At present, the Kirin battery of CATL 3The 0 volume utilization rate has exceeded 70%, and the combination scheme with ternary lithium makes the energy density of the battery pack exceed 180wh kg. The direct effect of such technological progress is longer range and lighter vehicle weight.
Although the current energy density of BYD's blade battery is about 140Wh kg, there is still a gap compared with the best technology in the industry. But the second generation of blade batteries is about to be released in 2024 and is expected to reach an energy density of around 180wh kg, which will be a technological leap. The benefits of this upgrade include a smaller footprint and lighter weight for the same range, which optimizes power consumptionIn the case of the same volume, it can ensure a longer battery life to meet the needs of different usersThe new battery pack will further increase the charging speed and improve the practicality of the vehicle.
Behind the evolution of technology, we need to rationally look at the performance of blade batteries in terms of cost, reliability and battery life. Blade batteries have achieved significant cost reductions and have proven their reliability in real-world applications. The improvement of battery life performance depends not only on the increase of battery capacity, but also on the rational use and design of space.
Finally, we cannot ignore an important factor in the evolution of electric vehicle technology, that is, the deep consumption link with the majority of consumers. While some of the top technologies are strong, high pricing limits their popularity. On the contrary, the blade battery, a technology that is more deeply connected to the working class, is exactly what the market needs. This technology can not only promote the development of electric vehicles, but also enable more people to enjoy the convenience and practicality brought by electric vehicles.
The development of blade batteries has undergone several technical upgrades, which not only improve battery performance, but also bring significant advantages in vehicle design and user experience. With the introduction of the second generation of blade batteries, we can expect even better performance, which will drive the further evolution of electric vehicle technology and encourage more consumers to join the electric vehicle trend.