The total capacity of the 46,800 cells in the battery should be 30 Ah.
On October 25, during a media roundtable, Panasonic launched its new product, the 46800 battery, for the first time, which has 5 times the storage capacity of existing batteries. Trial production plans will begin in Japan in March 2022. Panasonic said the release of this battery will help deepen its business cooperation with Tesla. For a while, major battery manufacturers advertised their layout in large cylindrical batteries.
According to data previously provided by Tesla, compared with the 21700 battery, the capacity of the 46800 battery will be increased by 5 times, the output power will be increased by 6 times, and the cost per kilowatt-l The hour will be reduced by 14%. After taking into account the impact of volume changes, the cruising range of the same model using4680 batteries will increase by approximately 16%.
Range Endurance
And Tesla uses poleless (or all-pole) technology, which allows it to be fully charged to 80% in 15 minutes . Greatly improves the problem of fast charging. From the above information, we can understand that there are two directions for cylindrical batteries. The first is to expand into larger units to improve the issues of cost reduction and capacity improvement. The second is full polarization to improve the problems of high-rate discharge and fast charging.
Actually, our production process for large cells and small cells is exactly the same. It takes the same amount of time to produce a 46800 cell and a 21700 cell, which means the production and management costs are the same. . By calculating the proportion of production and management costs of the base corestterie at 20%, the material cost of one 46,800 and five 21,700 is the same, but the management cost is only 1/5 of the original.
Once the 4680 is equipped, it is very likely that Tesla will start killing new energy sources.
A month ago, Tesla launched a new 4680 battery at “Battery Technology Day”. Compared with the currently used 2170 battery, technical indicators indicate that the new 4680 battery will have an energy increase of . 5 times and the capacity is increased by 6 times. Thanks to the strong driving force advantage, when equipped with this battery, Tesla's battery life is expected to increase by 16%.
If this satellite can land, it means that Tesla's overall performance will be greatly improved.
In fact, from an industry perspective, the biggest advantage of the 4680 is not the 16% increase in battery life. Judging by the resultsTest results from foreign media, the biggest advantage of the 4680 is that it can do this. better to allow Tesla to increase the charging speed.
It only takes 15 minutes to increase the power from 10% to 80%, which is about 10 minutes faster than the current Tesla battery. If you only need to recharge to 50%, it will only take 7 minutes.
If the endurance performance is increased by 16% in the future, taking the standard endurance version of 425km as an example, its endurance mileage will be increased to about 493km, and 50% of energy storage will ensure 240km kilometers of endurance performance.
In other words, if the displayed battery life score is only 50%, then it only takes 7 minutes for a Tesla equipped with a 4680 battery to recharge up to 'at 240 km. This advantage is enough to resolve. every problem. User mileage anxiety.
Of course, this must bere based on the possibility of enjoying the benefits of overeating.
Tesla did not choose to blindly accumulate battery capacity to solve user anxiety. It made charging faster from a technical point of view, coupled with dense charging piles and faster charging technology support, it tried its best to reduce the range. gap with fuel vehicles.
Of course, one has to ask whether the reliability and stability of the new battery has increased. Otherwise, it will be difficult to impress consumers at the basic level of security.
However, the impact of the new 4680 on the industry is not small, especially at a time when the CATL 811 battery is at the forefront.
From the perspective of technical standards, as a domestic supplier giant, Ningde Times 811 can indeed represent the domestic mainstream technical equipment. However, as more and mores vehicles continue to ignite and catch fire spontaneously, the major manufacturers have done it. No trust in the Ningde Times. There have been subtle shifts in opinions. Under the impact of BYD's new battery technology, the time when a brother was alone seems to have undergone subtle changes.
For various reasons, domestic new energy vehicles provide even more support for CATL.
But it must be admitted that the revolutionary power of ternary lithium batteries from a technical point of view is indeed not as attractive as the 4680 satellite launched by Tesla. The most important thing is that it does not have any powerful supplement. power of Tesla Backed by comprehensive electric technology, it also has the same problems as Tesla.
Risk of spontaneous combustion.
Of course, from an objective point of view, CATL is just a battery supplier. The overall performance of newsenergies always depends on the company for current new forces, whether electrical resupply or technology. In terms of advancements, battery life and performance, there is still a long way to go compared to the current Tesla.
Especially in terms of charging, the advantage of V3 overcharging determines that Tesla can easily charge more than 200 km in 10 minutes, which is an advantage that not all new forces have if l we count Musk's heavy investment. The recharging network put in place makes it even more difficult for the new forces to resist.
The shortcomings are obvious and currently remain the biggest problem for the new forces. On the one hand, the problem is the battery problem, and on the other hand, there is actually plenty of room for it. improvement of overall technology.
Tesla's problem is that the battery problem has not beenresolved, but it can make up for its shortcomings with charging technology, and the technical direction of the 4680 battery has shown that Musk does not want to hide all electric vehicles. When it comes to vehicle battery life, it is trying to improve the charging problem through new technologies to make charging faster and catch up with the refueling speed of fuel vehicles.
Together with the charging network I have invested heavily in, I may be able to turn the industry around again.
This article comes from the author of Autohome Chejiahao and does not represent the opinions and positions of Autohome.