On October 28, the Ministry of Industry and Information Technology issued an announcement to publicly solicit opinions on the "Standard Conditions for the Automotive Traction Battery Industry", aiming to strengthen the supervision of automotive traction battery products, prevent low-level redundant construction, and promote technological progress and large-scale development of traction battery manufacturers.
According to the opinion draft issued by the Ministry of Industry and Information Technology, a power battery refers to a device installed on a car that can store electrical energy and be rechargeable, and provide energy for driving the car. Including lithium-ion power batteries, metal hydride nickel power batteries and supercapacitors, etc. (excluding lead-acid batteries). The opinion draft gives normative opinions on the automotive power battery industry from seven aspects: basic requirements of enterprises, requirements of production conditions, requirements of technical capabilities, requirements of products, requirements of quality assurance capabilities, sales and after-sales services, and standardized management.see more:RV Lithium Battery
Since the beginning of this year, this is the third time that the national ministries and commissions have officially confirmed the mainstream status of nickel-metal hydride batteries through official channels. On June 13, the website of the Ministry of Industry and Information Technology released a message to publicize the implementation plan of the 2014 Industrial Transformation and Upgrading Strong Foundation Project. Hunan Keba Automotive Power Battery Co., Ltd., a subsidiary of Corun, has announced the implementation plan for nickel-metal hydride batteries for hybrid electric vehicles. On July 2, the Ministry of Commerce issued an announcement on the centralized anti-monopoly review decision, approving the proposed joint venture Kelimei by Corun and Toyota with additional restrictive conditions, and pointed out in the announcement that nickel-metal hydride batteries have mature technology and good safety. , Low price, currently about 95% of hybrid vehicles use nickel metal hydride batteries.
Studies have shown that although lithium batteries are the development direction of power batteries in the future, their safety cannot be guaranteed and their costs are relatively high. From the perspective of development trend and speed, only nickel-metal hydride power batteries are the most industrialized at present, because nickel-metal hydride battery technology is the most mature, and it will remain the mainstream of new energy vehicles for a long time in the future. After that, nickel-hydrogen battery technology will and Lithium iron phosphate and hydrogen fuel cells are three points in the world. Battery giants Panasonic and Sanyo also believe that it is impossible for lithium-ion power batteries to replace nickel-metal hydride power batteries in the near future. The main reason is that nickel-hydrogen power batteries are cheap and safe, and have reached mass production. Lithium batteries still have issues that need to be tackled, such as safety, so commercialization will take time. All hybrid vehicles that have been mass-produced in the world use nickel-hydrogen battery systems. Toyota has always insisted on the mainstream of nickel-hydrogen batteries in hybrid vehicles. Last year, Toyota built a production line with an annual output of 100,000 units, which is still nickel-metal hydride batteries. Ni-MH batteries have a strong and long-term vitality in the market.Also read:72v 200ah lithium battery pack
There was a time when the industry's assertion that "Ni-MH batteries are backward batteries" was rampant. The two most important indicators for considering automotive power batteries are safety and cost. Lithium batteries are the core power batteries of pure electric vehicles, but the technical difficulties faced by lithium batteries have not been substantially broken through. One is security. The hidden dangers of fire, combustion and even explosion of lithium batteries cannot be completely eliminated at present. The second is that lithium-ion batteries need to protect the circuit to prevent the battery from being overcharged and over-discharged. Third, the production requirements are high and the cost is high. At present, lithium iron phosphate batteries, which are the mainstream technology, still have inherent defects such as large size, heavy weight, slow charging, and short battery life.
However, from the perspective of the industry cycle, nickel-metal hydride power batteries have entered a mature stage, forming a large-scale production and having a price advantage. Moreover, the nickel-hydrogen battery is also the only power battery that has been actually verified and commercialized and mass-produced in the battery system used in hybrid electric vehicles. Hybrid vehicles, including the Toyota Prius, the world's highest-selling vehicle, commonly use nickel-metal hydride batteries. It can be seen that in the field of energy saving and new energy vehicles, nickel-metal hydride batteries are still the mainstream of commercialization. According to my country's new energy vehicle planning, the development of hybrid vehicles in the next few years will be an explosive period, which will provide development opportunities for nickel-metal hydride batteries that are more mature in technology and more suitable for hybrid vehicles.