February 21, Online exposure has been a sudden power-off in the Si Di Han EV, causing widespread concern. According to the insider, the battery power is displayed around 40 percentage when power is powered off. It is reported that this is no longer driving in BYD Han EV. It is in the last month, another BYD Han EV owner, encountered the same problem, suddenly power out of power, while powering up, There is still 60% of the electricity left.
Continuous BYD Han EV, once again let BYD become the focus of public opinion. Netizens generally have questions, is BYD Han EV not equipped with a blade battery? Why do you have such problems?
[123 ] I think it is necessary to tell you that BYD’s blade battery, the blade battery is not a new battery type, but the shape of the battery. Essentially is also a lithium iron phosphate battery. The blade battery is flattened by a single cell and thinner thickness.
With a traditional cylindrical battery, there will be more gaps after stacking, and the space utilization is not high. The blade battery is increased by no gaps and the spatial utilization rate. So BYD’s blade battery can increase energy density in unit volume, or less volume without increasing density.
Since the BYD’s blade battery is essentially a lithium iron phosphate battery substance, it has some advantages and disadvantages of the lithium iron phosphate battery. The advantage is that the price is low, and the price of Tesla Model 3 with lithium iron phosphate batteries is also cheap. Second, it is good, and the three-dimensional lithium battery is particularly easy to spare, butLithium lithium phosphate batteries is not so easy to use.
So what shortcomings after the lithium iron phosphate battery is encapsulated by a rectangle of BYD? In fact, these disadvantages are the disadvantages of the lithium iron phosphate battery, as well as the shape of BYD changes the shape. The first is the lithium iron battery in the lithium battery, which is mainly the low-temperature performance of lithium iron phosphate battery resistance.
The pattern of the blade delineates the structure of the support cell. Under the impact of the external force, it is difficult to ensure the integrity of the battery, so a cell is damaged, and the other series of batches will also be affected.
So anything is not 100% perfect, there is advantage, and there is a disadvantage. We look at BYD Han EV, although the sales after the listing is good, it has not exposed the self-ignition case. However, the events that suddenly cut off, but there were around three or four times, I think this needs to cause enough attention from Biandi Fang. Find the root of the problem as soon as possible, if it is a software system problem, you can upgrade remotely via OTA to solve the user. If it is a hardware problem, then it takes a timely recall, otherwise more sales have increased, similar cases will increase, then the future development of BYD will definitely bring adverse effects.