近日，俊风汽车关注到 CTC技术！Cell To CHassis！你了解多少！

　　日前，零跑举行了CTC电池技术解析会，高调发布无电池包CTC技术，并宣布零跑C01将成为全球首款无独立电池包的电动车。据资料，作为零跑汽车的第四款车型，零跑 C01 定位纯电中大型轿车，3秒即可破百，将在4月首发，6月预售，8月上市。

　　不得不说，零跑依然在高调前行的道路上昂首挺胸。

　　简析CTC动力电池技术

　　近年，CTC（Cell To Chassis）动力电池技术在汽车行业被广泛提及，与其说CTC是个先进的技术，不如说它是个先进的理念。

　　特斯拉早在2020年的“特斯拉电池日”上便首次公开了CTC电池技术，并将该技术称之为“未来所有电动车终极制造方式”。

　　就连马斯克也要特意去加以解释：“没必要往盒子里再装一个盒子。”

　　马斯克用机翼来形象解释CTC：原本飞机会把燃料箱存放于机翼，但为了更大程度利用空间，便拿掉燃料箱，直接用机翼来储存燃料，这样能容纳的燃料无疑更多。

　　从零跑科技电池产品线总经理宋忆宁在发布会上的介绍来看，零跑的做法是：

　　1、将电池、底盘和下车身进行集成设计，简化产品设计和生产工艺；

　　2、通过重新设计电池承载托盘，使整个下车体底盘结构与电池托盘结构耦合；

　　3、通过减少结构设计，进而减少零部件数量，让车身与电池结构互补，使电池抗冲击能力及车身扭转刚度得到度提升。

　　值得一提的是，零跑的CTC技术应用车身结构作为电池包外部结构，取消了电池包的部分结构设计——换句话来理解，车身就是电池包的外部结构。

　　有了电池包的刚度加成，这一做法为整车带来25%的扭转刚度提升。

　　发现问题了吗？车身刚度是大大提升了，但要靠电池的刚度去支撑，像“拧毛巾”一样去“拧电池”。

　　安全还是汽车的第一关键词吗？

　　正如“某电动汽车某时某地自燃/爆炸”的社会新闻一样敏感，消费者们最关心的就是电动汽车的安全问题，同样安全问题也是汽车工业的重中之重。

　　比亚迪通过向我们展现刀片电池的穿刺实验，让我们看到普通的三元锂电池在穿刺实验会如此可怕，也对比看到刀片电池的安全与稳定——这是一项全新黑科技在带给大家后致力于树立的良好形象。

　　但零跑在CTC方面，似乎让大家有些担心。随之而来的问题我们不得不去提起：

　　1、扭转刚度数据很好，但“拧电池”是不是有点…？安全问题怎么办？

　　2、势必要用到强化版电控系统和电池组外壳材质，成本怎么办？

　　3、高度集成化和模块化，一旦磕碰损毁，即便是安全方面没出问题，维修成本怎么办？

　　4、新能源车在保费大改后，疯狂上涨的保费已经给广大用户们上了一课，这会再火上浇一把油吗？

　　5、CTC技术这么先进这么好，特斯拉为什么还不用？马斯克在等什么？特斯拉是没钱研发技术还是没能力研发技术？

　　一连串的问题，让大家都在犹豫和观望。

　　笔者也在私下与同行进行了技术探讨，试图解除心中疑惑，但大家的理解都很相似，甚至提出了“房子里再拆点承重墙，套内面积更大”这样的打趣比喻，所以大家的看法都是诸如“CTC算是个趋势，只是现在技术短板还明显，做好了成本也高，零跑这基本就是实验田范儿”、“损毁难维修，成本高，安全表现有待验证”、“长期看可能有利于降低成本，但短期还不会”。

　　总结：长期看，CTC技术的确是个好思路，更直接、利用效率更高、化繁为简；短期看，前期的落地成本是个问题，维修是问题，安全性也有待验证。任何“好玩意儿”的普及，我们用户角度多观望、后下手的思路一定是对的。

　　我们谁都不愿落后于时代，但也别可怜的当了小白鼠，吹得再好也要看落地，落地后还得看口碑，市场是考量产品的真理。

我们期待他的成功，技术创新总要有人来吃螃蟹！鼓掌！

Recently, Junfeng Motor has paid attention to CTC technology! Cell To Chassis! How much do you know!


Is the CTC technology of zero run holding high and high playing reliable? Dont repeat the mistakes of S01

A few days ago, Leapmotor held a CTC battery technology analysis meeting, released a high-profile CTC technology without battery packs, and announced that Leapmotor C01 will become the worlds first electric vehicle without an independent battery pack. According to information, as the fourth model of Leapmotor, Leapmotor C01 is positioned as a medium and large-sized pure electric sedan, which can break 100 in 3 seconds. It will be launched in April, pre-sold in June, and launched in August.

It has to be said that Leaprun is still holding its head high on the road of high-profile progress.
Is the CTC technology of zero run holding high and high playing reliable? Dont repeat the mistakes of S01. Is the CTC technology reliable? Dont repeat the mistakes of S01

Brief analysis of CTC power battery technology

In recent years, CTC (Cell To Chassis) power battery technology has been widely mentioned in the automotive industry. It is not so much an advanced technology as CTC is an advanced concept.
Is the CTC technology of zero run holding high and high playing reliable? Dont repeat the mistakes of S01. Is the CTC technology reliable? Dont repeat the mistakes of S01

Tesla unveiled CTC battery technology for the first time on Tesla Battery Day in 2020, calling the technology the ultimate manufacturing method for all future electric vehicles.

Even Musk has to go out of his way to explain: Theres no need to put another box in the box.

Musk used the wing to explain the CTC image: Originally, the aircraft would store the fuel tank on the wing, but in order to utilize the space to a greater extent, the fuel tank was removed and the wing was used to store the fuel directly, which would undoubtedly accommodate more fuel. many.
Is the CTC technology of zero run holding high and high playing reliable? Dont repeat the mistakes of S01. Is the CTC technology reliable? Dont repeat the mistakes of S01

According to Song Yining, general manager of Leapmotor Technologys battery product line, at the press conference, Leapmotors approach is:

1. Integrated design of battery, chassis and lower body to simplify product design and production process;

2. By redesigning the battery carrying tray, the entire lower body chassis structure is coupled with the battery tray structure;

3. By reducing the structural design, the number of parts and components can be reduced, so that the structure of the body and the battery are complementary, so that the impact resistance of the battery and the torsional rigidity of the body are greatly improved.
Is the CTC technology of zero run holding high and high playing reliable? Dont repeat the mistakes of S01. Is the CTC technology reliable? Dont repeat the mistakes of S01

It is worth mentioning that Leapmotors CTC technology uses the body structure as the external structure of the battery pack, canceling part of the structural design of the battery pack - in other words, the body is the external structure of the battery pack.

With the stiffness bonus of the battery pack, this approach brings a 25% increase in torsional stiffness to the vehicle.

Did you find the problem? The rigidity of the body is greatly improved, but it depends on the rigidity of the battery to support it, and twist the battery like twisting the towel.

Is safety still the number one keyword for cars?

Just as the social news of an electric vehicle spontaneously ignites/explodes at a certain time and place is as sensitive, consumers are most concerned about the safety of electric vehicles, and the same safety issue is also the top priority of the auto industry.
Is the CTC technology of zero run holding high and high playing reliable? Dont repeat the mistakes of S01

By showing us the puncture experiment of the blade battery, BYD showed us that the ordinary ternary lithium battery would be so terrible in the puncture experiment, and also saw the safety and stability of the blade battery - this is a new black technology that brings Everyone is committed to establishing a good image.

However, in terms of CTC, Zero Run seems to make everyone worried. We have to ask the following questions:

1. The torsional stiffness data is very good, but is twisting the battery a bit...? What about security issues?

2. It is necessary to use the enhanced version of the electronic control system and the material of the battery pack shell. What about the cost?

3. It is highly integrated and modular. Once it is damaged by collision, even if there is no problem in safety, what about the maintenance cost?

4. After the insurance premiums of new energy vehicles have been drastically changed, the crazy rising premiums have taught the majority of users a lesson. Will this add fuel to the fire?

5. CTC technology is so advanced and good, why doesn’t Tesla use it? What is Musk waiting for? Does Tesla have no money to develop technology or is it unable to develop technology?

A series of questions made everyone hesitate and wait and see.
Is the CTC technology of zero run holding high and high playing reliable? Dont repeat the mistakes of S01

The author also had a technical discussion with my peers in private, trying to clear my doubts, but everyone’s understanding was very similar, and even put forward a joking metaphor such as “remove some load-bearing walls in the house, and the inner area will be larger”, so everyone’s understanding is very similar. The opinions are all such as CTC is a trend, but the technical shortcomings are still obvious now, and the cost of doing it is high. Zero running is basically an experimental field, Damage is difficult to repair, the cost is high, and the safety performance needs to be verified, It may be beneficial to reduce costs in the long run, but not in the short term.

Summary: In the long run, CTC technology is indeed a good idea. It is more direct, more efficient, and simplified. In the short term, the initial cost of landing is a problem, maintenance is a problem, and safety needs to be verified. With the popularization of any good thing, our users idea of watching more and starting later must be right.

None of us want to fall behind the times, but dont be pitiful to be a guinea pig. No matter how good you blow, you have to look at the landing. After landing, you have to look at the word of mouth. The market is the truth of the product.
Is the CTC technology of zero run holding high and high playing reliable? Dont repeat the mistakes of S01



We look forward to his success, and technological innovation always requires someone to eat crabs! applaud!