Acupuncture to shooting, from cold weapon era to hot weapon era
Aian's magazine battery 2.0 shooting test is by far the most stringent battery safety test. The whole pack of fully charged batteries, with a camera opening reserved, was shot at15m. Compared with the well-known acupuncture test, the shooting test simulates more extreme and harsh scenes. When a bullet penetrates a battery cell, its speed can reach 975,000 times that of acupuncture, and its wound diameter is 7-8 times that of acupuncture, which can instantly penetrate multiple batteries, causing thermal runaway and explosion injury. Faced with such a severe challenge, both the mainstream lithium iron phosphate battery and the mainstream lithium iron phosphate module have obvious thermal runaway and combustion phenomena, which means that real safety cannot be achieved only by the inherent characteristics of the battery. However, the magazine battery 2.0 did not catch fire and explode after the whole package was finished. After the battery system shell was disassembled, the whole structure was complete, and only three batteries burst and were damaged. After standing for 24 hours, the temperature returned to normal temperature and passed the shooting test successfully. This is also the first time in the world that the power battery does not catch fire or explode in the shooting test.
At present, the national standards for safety test of power batteries include acupuncture, dropping, burning and impact. Among them, acupuncture is the highest safety standard of battery car, which requires that the battery will not catch fire for 5 minutes after being punctured by 8mm steel needle. Previously, less than 3% of battery brands in the industry passed, and the magazine battery published in 20021was the first battery technology that could prevent ternary lithium from catching fire. The magazine 2.0 released by Ai 'an this time has upgraded the battery safety test standard from acupuncture to shooting, which is comparable to the leap from the cold weapon era to the hot weapon era.
Judging from the spontaneous combustion data released by the National Emergency Management Department in recent two years, battery safety is still a pain point and a difficult problem in the industry. Wang Qingquan, director of research and development of Aian battery, said at the press conference that even a risk of one in ten million requires ten million times of efforts! The reason why Ai 'an constantly studies battery safety technology and makes technical breakthroughs again and again stems from the belief in Ai 'an's bones-the ultimate pursuit of safety.
Three original breakthrough technologies to create the ultimate security protection.
In order to provide users with the ultimate battery safety protection, Magazine Battery 2.0 has developed a series of original safety technologies, such as ultra-stable electrode interface, heat-resistant phase change materials, battery cell fire extinguishing system and so on, based on the original generation of magazine batteries, and achieved the ultimate battery safety protection.
For lithium-ion batteries, the electrode interface is the most active area in the battery core. In order to strengthen the stability of the electrode interface, the magazine battery 2.0 developed the technology of "ultra-stable electrode interface". The interfacial toughness of the electrode is greatly improved by nano-ceramic materials with ultra-high stability and ultra-high heat resistance; The application of composite current collector material can quickly collapse when heat accumulates and avoid continuous short circuit; At the same time, Aian also added antioxidant flame retardant to the electrolyte of magazine battery 2.0. After high temperature activation, the free radicals of combustion reaction can be captured and the conditions for continuous combustion can be cut off. Under the protection of triple technology, even if thermal runaway occurs, the heating rate of the battery can be reduced by 20%.
Besides improving the intrinsic safety of the battery, AEON cooperated with China Aerospace to develop a heat-resistant phase change material with dual functions of heat insulation and phase change heat absorption. The latent heat of this phase change material is 10 times higher than that of conventional materials, and it can absorb a lot of heat while keeping the temperature unchanged. The use of reticulated nano-thermal insulation materials greatly improves the overall thermal insulation performance by 40%. On the other hand, the magazine battery 2.0 adopts a double-layer cooling system, which simultaneously cools the top and bottom of the battery core, so that the overall cooling efficiency can be improved by 80%, and the upper shell temperature can be reduced by 75%, further ensuring the safety of passengers above the battery pack.
Aiming at the extreme scenario that the whole battery pack may be damaged due to external reasons, Aian's engineers also equipped the magazine battery 2.0 with a battery core fire extinguishing system. It uses low melting point alloy to form a fire extinguishing chamber, which realizes the storage of fire extinguishing agent, the self-positioning of thermal runaway battery and the fixed-point spraying in a very small height space. When the battery is out of control, a large number of fire extinguishing agents are sprayed on the battery instantly and accurately. The extinguishing agent captures the free radicals of combustion chain reaction while absorbing heat and gasification, forming an inert gas atmosphere. Combined with Ai 'an's thermal runaway gas emission treatment technology, Mars and 99.5% PM 10 in waste gas can be eliminated. The application of this technology makes magazine battery 2.0 the only battery technology with its own safety "fire brigade".
In addition to the passive battery safety technology mentioned above, Aian has also developed the sixth generation cloud battery management system based on big data and AI technology. Thanks to more than 600,000 vehicles and full-life application data of 1300 TB, the sixth-generation cloud battery management system has greatly improved its ability to identify abnormal self-discharge, abnormal heat dissipation, abnormal electrical connection, hidden insulation faults, etc. The AI recognition ability of internal short circuit reaches 200 Ω, which is much higher than the risk line of10 Ω, which can realize early diagnosis and prevent "burning out".
The application of the above technology has improved the comprehensive thermal runaway management ability of magazine battery 2.0 by five times, and can resist the impact caused by the simultaneous thermal runaway of multiple batteries.
The technology blowout has been ushered in, and the unicorn of science and technology innovation board has unlimited potential.
Compared with new energy car companies, Ai 'an is a technology company. From the original magazine battery to magazine battery 2.0, AEON has made breakthroughs again and again in the field of battery safety, not only because AEON can be closer to the needs of consumers from the perspective of vehicle safety, but more importantly, they have long-term resource investment and technical accumulation in electric technology.
In 2022, the Forbes list of global unicorns was released, and Ian topped all dimensions. Behind the super unicorn, Ai 'an started the research and application of electrification technology as early as 20 1 1. Now, it has set up a world-class battery research and development team, with leading battery laboratories, professional test sites and battery production workshops. It is one of the few car companies in China with independent design and manufacturing capabilities of advanced batteries. Last year, Aian invested 654.38+009 billion yuan to set up Yingpai Battery Technology Co., Ltd., focusing on the research and application of forward-looking battery technology, laying a solid foundation for opening up the battery R&D, design, intelligent manufacturing, sales and service chain.
Earlier, it was reported that the cooperation mode of the development project of Egypt's new security model AH8 was adjusted from joint development with Huawei to independent development. As a unicorn of science and technology, Ai 'an does not lack the confidence and strength to transform its cooperation model with Huawei. Since its establishment, AEON has been focusing on the full-stack self-research of EV and ICV, and has accumulated rich scientific and technological achievements. In addition to releasing core three-electricity technologies such as magazine battery series, ultra-fast battery, sponge silicon negative plate battery, microcrystalline lithium iron battery and quark electric drive in the EV field, Ai 'an has also invested in the construction of ADiGO intelligent driving interconnection ecosystem in the ICV field, realizing the accelerated iterative upgrade of over-the-horizon call parking, high-speed NDA, urban NDA and intelligent cockpit technology. Last June, 5438+065438+ 10 released a new generation of Spirit electronic and electrical architecture. The publication of magazine Battery 2.0 not only redefines the standard of battery safety, but also proves that Aian is a unicorn of science and technology.
As Zhang Xiong, deputy general manager of Ai 'an, said at the press conference, "Promoting social progress is the unremitting pursuit of Ai 'an". Magazine Battery 2.0, as a battery turnkey technology, can match battery technologies such as long battery life and ultra-fast charging. Not only will Haoplatinum be gradually equipped to realize mass production application, but it will also empower deep diving, aviation, aerospace and other fields with the ultimate battery safety performance. Continue to evolve and accelerate energy transformation.
Today, Aian has a complete industrial chain layout and strong R&D strength, and the technology blowout period has also arrived. When Ai 'an sprints to science and technology innovation board as a technology giant, the imagination space left for the capital market is huge.
end
This article comes from the author of Yiche number, and the copyright belongs to the author. Please contact the author for any form of reprint. The content only represents the author's point of view and has nothing to do with the car reform.