05
New energy
Editor-in-Chief | Zhang Kehuan
Edit | Zhang Li
Author | Off the space
Reports from The GreatAuto
At the end of 2021, a remark by the new force Li Bin once again pushed the oil and electricity dispute to the cusp of public opinion, in Li Bin's view, it is 2021, I really can't figure out why anyone will buy a fuel car, in addition to being able to smell a gasoline, what is good?
Although this remark seems to many people to be slightly "crazy", objectively speaking, Li Bin is telling the truth, and it is also the most pertinent and reasonable suggestion for car purchase at this stage.
A very real problem, under the premise that new energy includes pure electric and plug-in hybrid (extended range) two categories, even if you mind the pure electric energy supplementation problem, there are also plug-in hybrid and extended range can be selected, and their electric drive performance, driving quality and energy consumption, completely crushing traditional fuel vehicles.
Sales figures are sufficient to support this view. We take the most representative BYD DM-i in the field of hybrid in 2021 and the most representative ideal ONE in the field of extended range as an example, in 2021, they have achieved enough phenomenal horror sales, BYD's backlog of orders has been scheduled to the second quarter of 2022, and the ideal ONE is a high-end model with a starting price of more than 300,000, easily achieving a single monthly sales of more than 10,000.
In the context of today's hybrid and pure electric technology explosion, the traditional pure fuel market has no competitiveness to speak of, only the so-called "feelings".
Of course, in addition to BYD DM-i, there are actually many technical highlights in the field of new energy in 2021, in addition to some mainstream brands, in addition to new energy, there are many achievements in the field of intelligence.
Therefore, 2021 is not only the first year of the outbreak of new energy, but also the first year of the outbreak of high-end intelligent technology, next, we will take stock of what amazing new technologies have emerged this year.
GREATAUTO
Deep hybrid systems exploded
In addition to DM-i, there are several DHTs
Under the pressure of carbon peaking and carbon neutrality, the development of traditional energy to the direction of deep hybrid new energy is the largest development direction outside of pure electric, and 2021 is the year of the outbreak of deep hybridization in our domestic market.
On March 8, 2021, BYD's first model using a deep hybrid system DM-i, Qin PLUS, was launched, and with a terrible fuel consumption level of less than 4 liters per 100 kilometers, it detonated the mainstream family car market in one fell swoop; and the subsequent listings of Song PLUS DM-i, Tang DM-i and the recently listed Song PRO DM-i also achieved ultra-low feed fuel consumption performance.
DM-i can have such a low feeder fuel consumption performance, the progress of integrated hybrid technology is the greatest, not only through a more advanced concept to achieve a higher efficiency of energy utilization, BYD also in the traditional internal combustion engine basic thermal efficiency, accessory electronic control, BMS, temperature control, motor flat wire winding and other subdivisions to achieve technological progress and breakthroughs.
At the same time, in view of the "cost" pain point of the deep hybrid system, BYD has also successfully exchanged technology for space for price reduction, and the more advanced lithium iron phosphate "blade battery" has not only become a chassis structural part, but also achieved a big breakthrough in the volume-specific energy density of the battery pack and high safety and low cost.
Of course, the benefits of deep hybridization, other car companies also see in the eyes, in addition to BYD, many years ago there were also a number of independent car companies to carry out pre-research, and have begun to harvest in 2021.
The two DTTs of the Great Wall are the second market breaking point after BYD DM-i. Different from BYD's logic of emphasizing the coordinated power of the internal combustion engine and the motor through the planetary gear set, DHT is more like letting the motor and the internal combustion engine be responsible for different working conditions, and through the addition of two gear reducers, the optimal working conditions range of the internal combustion engine and the motor are further expanded.
There are two advantages, one is a more powerful electric drive capability, can support pure electric drive to cope with more working conditions, more expandable, in addition to urban use, off-road can be theoretically compatible, and the future expansion to more PHEV architecture models only need to increase the battery on the line; the second; is theoretically better dynamic texture. Because of the increase in electric drive conditions, the vehicle in more cases are more like a pure electric vehicle, NVH texture is better, even if the large power request and feed condition travel, DHT structure can also compensate the torque through the motor to make the clutch achieve "non-inductive" engagement, avoiding the traditional hybrid system when the working conditions switch annoying vibration transmission.
At the same time, in order to make the word "texture" more vivid, we also found that several new models listed in 2021 are equipped with ANC active noise reduction functions, with the sound insulation design of the engine compartment firewall, when we test drive before, the high quality of the model it showed was completely no different from that of pure electric vehicles.
Similar to the bydIR DM-i and Great Wall DHT this deep hybrid system, in 2021 we also saw the release of Geely Thor DHT, Chery Kunpeng DHT, their new models will be listed in 2022, each of which has its own design characteristics, but the advantages of fuel saving and power saving are consistent.
In addition, in 2021, Changan also released a hybrid iDD system, although there is not much brilliance in the logical structure of the machinery, but in the PHEV model using a large-capacity battery pack + fast charge, in exchange for the concept of completely pure electric driving in the city, it is still worthy of respect, closer to the original intention of the previous invention of THE PHEV model.
Power battery technology exploded
In addition to new recipes, there are also new ideas and new processes
2021 is not only the year of the explosion of new energy in the field of plug-in (extended range) hybrid, but also the year of the explosion of pure electric vehicle models in power battery technology.
The concentrated outbreak of new technologies for power batteries has also directly made the average product strength of the electric vehicle market by leaps and bounds, making pure electric vehicles occupy an absolutely large market share in the new energy market in 2021.
In addition, the emergence of new technologies, new formulas, and new processes, combined with the large-scale construction of charging and replacing infrastructure facilities, may also make the era of pure electric arrive in advance.
Among the new technologies in 2021, the small-scale mass production of 4680 batteries is particularly worth mentioning. It is a major breakthrough product of the current ternary lithium battery for several product pain points, one is for the current ternary lithium in the 811 ratio to improve the energy density has been nearly the limit of the background, through structural updates, successfully let the energy density of the group battery pack increase again, Tesla's official data is to increase the battery life by 16%.
Second, it is aimed at the ternary lithium in the process of high-power charging and discharging, the polar ear part will accumulate heat, it is not convenient to further expand the power, and there is a background of thermal runaway safety hazards, creatively made the evolution of the "infinity ear" design, and then achieved mass production through the upgrade process, which not only makes the thermal stability performance better, but also lays a solid foundation for the future new car to further improve the charge and discharge power.
New technologies for the pain points of ternary lithium batteries, as well as the efforts of our domestic independent brands.
As we all know, in the "quasi-mass production" new car unveiled in 2021, the most exaggerated battery capacity and endurance is the new GAC Aean LX PLUS, and the CLTC has a range of more than 1,000 kilometers.
And unlike Weilai, which uses semi-solid to achieve a volume of 150 degrees of electricity, Aian uses the lower cost of traditional nickel, cobalt and manganese ternary lithium to achieve an amazing 144 degree capacitance product of a battery pack, and the system energy density is as high as 205Wh/kg.
The core technological innovation is the introduction of sponge silicon anode sheet, in the new battery, GAC Aeon added a sponge-like soft silicon wafer to the battery negative electrode. The expansion and contraction of silicon during charge and discharge is limited and buffered, will not break, and the silicon negative electrode can store more energy like a sponge absorbing water.
This technology greatly reduces the quality and volume of the battery, and in the case of the same amount of power, the power battery cell achieves a 20% reduction in volume and a 14% reduction in weight. And according to GAC Eian official disclosure, the current cell energy density of sponge silicon anode plate batteries has reached 280Wh/kg, and in the future, after technical iteration, the cell energy density of sponge silicon anode chip batteries will theoretically reach 315Wh/kg.
Energy density is advancing by leaps and bounds, electric vehicle endurance has become longer and longer, fast charging power is also increasing, charging time is getting shorter and shorter; obviously, the last lifeline that restricts the large-scale popularization of electric vehicles is only the safety of the battery.
This seemingly insoluble "life gate" has actually ushered in a large number of technological breakthroughs in 2021, even if we do not mention bydder BYD, which has been known to the world as a "pierced blade battery".
First of all, with the body of ternary lithium, he successfully challenged the "magazine battery" of the acupuncture experiment. In order to improve the safety of ternary lithium batteries, especially thermal stability, GAC Aeon has pioneered the "magazine battery" of super safety structure in the battery pack, through ultra-heat-resistant stable cells, super heat insulation design, rapid cooling system for extremely fast cooling, full-time control of the fifth-generation battery management system, coupled with the application of many composite new materials, magazine batteries even if they use ternary lithium materials, can also control the short-circuit thermal runaway brought by the needle prick experiment within a reasonable level, no spontaneous combustion and no explosion, So that ternary lithium can also have the same safety performance as lithium iron phosphate.
Similar concept products, as well as the "Dayu Battery" previously released by Great Wall Motors, which is also a new technology for the safety of the battery pack rather than the safety of the battery cell, through the logic of "using dredging without blocking" to improve the isolation stability and heat excretion ability when the heat is out of control, and also greatly improves the safety performance of the battery pack, so that consumers no longer worry about spontaneous combustion of the battery.
At the same time, in terms of cost, there are also a large number of new technological breakthroughs in 2021, which has made great contributions to the acceleration of the full popularization of electric vehicles, and here are two new technologies that have achieved mass production of the production line and will soon achieve mass production of the production line.
First, on July 16, Hive Energy achieved the mass production of the first cobalt-free battery off the production line. This means that the world's first cobalt-free battery has gone out of the laboratory and officially achieved mass production, and Hive Energy has thus become the world's first power battery company to break through the technical difficulties of cobalt-free batteries and successfully achieve mass production of products.
And "cobalt-free", as the name suggests, is a battery without cobalt, which is currently a solution for the high cost of ternary lithium batteries, because the current global proven cobalt resource reserves are only 7.1 million tons. Under the tide of rapid development of global electrification, the scarcity of cobalt resources will lead to rapid growth in future costs, which may soon exceed the affordability of car companies and consumers. "Cobalt-free" is to get rid of this constraint.
The second is the sodium-ion battery previously released by CATL on July 29. Similar to the idea of cobalt-free batteries, it is also to get rid of the constraints of production capacity and cost, because the current lithium mine is still relatively scarce, if the global car companies are to achieve electrification development, then lithium resources will also be extremely sought-after. In contrast, the element "sodium" is very different, its content in the entire earth element ranked as high as the sixth, almost at your fingertips, in 2022 this year or next year 2023, to achieve the scale of mass production of sodium-ion batteries, will directly let electric vehicles into thousands of households.
Smart technology is the next city
L3 is already at your fingertips
There are also AR into thousands of households
Speaking of new energy electric vehicles, it is inseparable from intelligence, because of the inherent architectural advantages of new energy models, the whole vehicle intelligence is now accelerating its popularity in new models at a faster speed.
In 2021, we have seen enough new intelligent technologies mass-produced.
Let's start with the core of high-level automatic "assisted" driving. The reason why we want to emphasize the word "auxiliary" is actually the problem of responsibility attribution, at this stage, because L3 level automatic driving needs to attribute part of the accident responsibility to the car company, so in the scenario where the technology is not yet fully mature, the car companies are basically part of the high-level, partial scenario of incomplete L3 level automatic driving, called "L2 + level" automatic "assist" driving, so as to avoid the responsibility problem.
But even so, the arrival of a large number of high-end "L2+ level" automatic assisted driving is worth the joy of consumers.
In the high-end intelligent driving assistance pushed in 2021, the Great Wall NOH is particularly worth mentioning, taking the Wei brand mocha equipped with the first launch as an example, they not only realize the standard of the whole series of hardware, but also further lower the entry threshold of high-end auxiliary functions, only a one-time cost of 15,000 yuan, compared to Tesla EAP/FSD, Xiaopeng NGP, ideal NOA, Weilai NAD, etc. are cheaper, in this year 2022, accompanied by a larger-scale loading and mass production of the coffee intelligent system, In the future, the performance of the Great Wall brand in high-end automatic driving is more worth looking forward to.
Of course, from the above paragraph, you can already see that the choice of high-end automatic driving assistance at this stage is actually very rich, Tesla, Weipai, Haval, Xiaopeng, Ideal, Weilai, etc. already have similar functions, and many of them are still coming in 2021 or have upgrades.
In the next 2022, there will be more car brands that can achieve high-end automatic assisted driving, such as zero running, Nezha, Huawei and so on.
In addition to automatic "assisted" driving, 2021 is actually a big outbreak of intelligent interaction, not only the release of mainstream intelligent interaction systems such as Hongmeng car OS, Galaxy OS, coffee intelligent driving, etc., but also the big update of many detailed technologies, such as augmented reality AR, which is one of the core of intelligent interaction.
One of the most mainstream applications of AR in 2021 is AR augmented reality navigation, which solves the problem of inaccurate two-dimensional navigation guidance in the previous plane through the high linkage of real-time screen and map navigation data of the camera, and with L2 level and high-level automatic driving assistance, there will be a better travel experience.
In addition to navigation, AR is also applied to the HUD head-up display, such as the AR-HUD display of volkswagen ID.3, which can project a large amount of car control and navigation information directly onto the windshield, and directly integrate with the driver's forward vision, not only the effect is sci-fi, the interaction effect is also full of praise.
The most exaggerated, at the NIO DAY 2021 just held at the end of 2021, Weilai also released AR glasses that match the new car ET5, which are directly worn by the driver and can be seen as the AR-HUD display with the effect upgraded again, the display effect is better, and the interaction is more in place.
In the context of such a great development of technology, in 2022, perhaps the intelligent driving and intelligent interaction of the whole vehicle can continue to evolve and continue to move towards the goal of "third mobile space" of science fiction.
Write at the end:
In 2021, the second year of the outbreak of the epidemic, in the context of economic impact and production capacity manufacturing being limited by the environment, everyone was not optimistic about the accelerated development of new energy and intelligent technology.
But now the results have been seen, pure electric battery technology, hybrid powertrain technology, autonomous driving and intelligent interaction technology have achieved a big leap forward in 2021, some of which even have a qualitative impact on the market.
Obviously, the megatrend is irreversible, and it's time to ditch your old fuel car mindset. The future is here, and embracing change is the smartest thing to do.
Copyright Notice
Some of the pictures in this article come from the Internet
If copyright issues are involved, please contact the author with proof of ownership and contact this official account
If you need to reprint, please apply to the background of this official account and obtain authorization
Legal adviser
Mr. Jiang Lei, Shanghai Hansheng Law Firm
Official website
www.greatauto.cn
Enter the media platform
Today's headlines | A little information | NetEase News | Sohu
Car headlines | Fun headlines | Easy car number | Sina News
Baidu Baijia no. | Motorhome | Tencent Penguin
Rider headlines | There is a car number | Love coffee number
Enter the video platform
CCTV number | Bilibili | Youku video | Tencent Video
Watermelon video | iQiyi | Microvision APP | Douyin APP | Kuaishou APP