The life expectancy of a BYD Blade battery can vary depending on factors like usage patterns, temperature, and maintenance. Generally, lithium iron phosphate (LFP) batteries used by BYD have a longer lifespan compared to traditional lithium-ion batteries. With proper care and management, LFP batteries can typically last around 10 to 15 years or more. However, individual results may vary based on specific conditions and usage.
advantage of LiFePO4 BYD Blade Cell ：
1. Increased battery energy density：
The blade battery cancels the module design and reduces the design of many structural parts.
At the same time, the upper and lower boxes are closely connected to the battery core, which significantly improves the volumetric energy density. This is also BYD’s widely publicized 50% increase in volumetric energy density.
2. Low cost：
The blade battery cancels the module design and optimizes the battery structure design. The number of secondary battery components has been reduced by 40%, and the low-cost LFP system has been applied, effectively reducing costs.
3. Strong structure：
The blade battery PACK is designed on the upper and lower sides of the battery cell, and two high-strength strength plates are bonded using structural adhesive. This creates a structure similar to a honeycomb aluminum plate, allowing each cell to act as a structural beam. Traditional battery packs generally only have 4-5 beams, while blade batteries allow each cell to act as a structural member, so its strength can be imagined. When there is a collision at the bottom of the battery, the battery core can directly withstand a certain range of force.
4. Excellent thermal management：
The liquid cooling plate of the blade battery is arranged above the battery core. At the same time, a thermal conductive layer is designed between the battery cores. The heat exchange area of this solution is much larger than that of traditional prismatic battery cells. It can effectively transfer the heat of the battery core to the water-cooling plate.
In addition, the blade battery has good heat dissipation performance, so the heat pipe of the blade battery is excellently designed and can control the maximum temperature difference within the battery within 1 ℃. The current industry standard is 5 ℃
5. Platform ization：
Blade batteries come in different specifications. Its length can be changed between 347~1012mm. In addition, it is a standard flat-type battery pack. Blade Battery can change the size of the battery pack in the X and Y directions according to the vehicle space, and develop batteries of different specifications.
This platform-based battery effectively reduces development costs and time. Its patent shows that there are at least 8 types of blade battery solutions. And corresponding to different sizes of batteries and different arrangements, the double-layer battery solution is also considered. For the integration of the cabinet, there are traditional separation solutions of the chassis and the cabinet, and there are also integrated chassis solutions in which the two are integrated into one.
