Efforts to develop 18650 battery pack 3.7v may be elevated to a national strategic level

　　Efforts in the research and development of 18650 battery pack 3.7v may be elevated to a national strategic level - Recently, an industry plan titled "New Energy Vehicle Industry Development Plan (2021-2035)" (Draft for Comments) (hereinafter referred to as the "Plan") was released The document leaked online, and many people found it very satisfying, thinking that it could provide an early glimpse into the general direction of the government's long-term plan for the new energy vehicle industry. The "Plan" circulated online puts forward specific goals for the industrial development and technological innovation of power batteries and fuel cells. Among them, "accelerating the research and development and industrialization of all-solid-state power battery technology" was listed as a "new energy vehicle core technology research project" in the "Plan" reported online. If the news is true, efforts to develop 18650 battery pack 3.7v may be elevated to a national strategic level.

　　Recently, an industry planning document labeled "New Energy Vehicle Industry Development Plan (2021-2035)" (Draft for Comments) (hereinafter referred to as the "Plan") leaked online. Many people found it very satisfying and thought that it would This can provide an early glimpse into the general direction of the government's long-term planning for the new energy vehicle industry. The "Plan" circulated online puts forward specific goals for the industrial development and technological innovation of power batteries and fuel cells. Among them, "accelerating the research and development and industrialization of all-solid-state power battery technology" was listed as a "new energy vehicle core technology research project" in the "Plan" reported online. If the news is true, efforts to develop 18650 battery pack 3.7v may be elevated to a national strategic level.

　　Solid-state batteries are considered by the industry to be the next generation mainstream power battery technology route due to their high energy density, high safety, and high stability. In recent years, international mainstream car companies such as Toyota, Volkswagen, BMW, Honda, Nissan, Hyundai, etc. have increased their investment in research and development of solid-state battery technology, hoping to dominate the competition in next-generation power battery technology. Domestic car companies, scientific research institutes, and battery companies are also paying close attention to and developing solid-state batteries. This time, it is reported online that the "Plan" lists solid-state batteries as a core technology research project. If true, the government may be expected to coordinate the resources of domestic scientific research institutes and enterprises to speed up the research and development process of this technology.

　　Comparison of solid-state lithium-ion batteries and traditional lithium-ion batteries

　　Source: "Research Status and Prospects of All-Solid-State Lithium Battery Technology"/Evergrande Research Institute

　　With the rapid growth of new energy vehicle ownership, new energy vehicle safety accidents are also gradually increasing, especially new energy vehicle fires. Because existing lithium batteries contain flammable liquid electrolytes, it is difficult to fundamentally solve this problem. Solid-state batteries use solid electrolytes with ionic conductivity to completely or partially replace the electrolyte, which is beneficial to improving the safety performance of the battery. At the same time, from the perspective of improving battery performance, solid-state batteries also have great potential compared to existing liquid lithium batteries. Academician Ouyang Minggao of the Chinese Academy of Sciences said that based on the comparison of power battery technology routes in various countries, lithium-ion batteries with liquid electrolytes will be used in the short term, and the next step will be towards solid-state batteries. Considering battery costs and the development direction of power batteries, Ouyang Minggao suggested that my country should follow a similar path, that is, use liquid electrolytes in the short term to develop high-nickel ternary cathodes and silicon carbon anodes; in the medium and long term, gradually transition from liquid electrolytes to All solid state battery.

　　Companies have paid close attention to solid-state batteries

　　Solid-state batteries are expected to solve consumers' "safety anxiety, battery life anxiety, and charging anxiety" about electric vehicles, and have always attracted great attention from car companies. In addition, European and American car companies also hope to take back the initiative in the power battery sector by taking the lead in mastering solid-state battery technology. At present, international car companies such as Volkswagen, Daimler, BMW, Renault, Toyota, Nissan, Honda, Hyundai, and Ford, and domestic car companies such as BYD, NIO, Tianji, Hezhong, and BAIC have invested in the field of solid-state batteries.

　　In terms of battery companies, domestic companies such as CATL, BYD, Ganfeng Lithium, Beijing Weilan, Qingtao Energy, Lishen Battery, Huineng Technology, Guoxuan Hi-Tech, Yiwei Lithium Energy, Jiawei Co., Ltd. have always had solid-state batteries. R&D. Some mainstream foreign companies in the industry are also stepping up their layout. In January this year, Toyota and Panasonic announced that the two parties will establish a joint venture for automotive prismatic batteries by the end of 2020, responsible for the research, development and production of all-solid-state automotive batteries and prismatic lithium batteries; 2018 In November this year, Samsung SDI, LG Chem and SKI agreed to jointly develop core battery technology. In addition, the three companies will establish a 100 billion won (approximately US$90 million) fund to jointly invest in the technology research and development of solid-state batteries, lithium metal batteries and lithium-sulfur batteries.

　　Improve the power battery industry development system

　　The "Plan" circulated online proposes that after fifteen years of continuous efforts, my country will achieve major breakthroughs in the core technology of new energy vehicles, pure electric vehicles will become mainstream, and fuel cell commercial vehicles will be applied on a large scale. By 2030, new energy vehicles will form a competitive advantage in the market, with sales accounting for 40% of total vehicle sales that year. By then, a "three-vertical" pattern will be formed with pure electric vehicles, plug-in hybrid vehicles, and fuel cell vehicles, laying out the entire vehicle technology innovation chain; with power batteries and management systems, drive motors and power electronics, and networking and intelligence Technology is "three horizontals" and a technology supply system for key components is established.

　　In addition, the "Plan" also proposes to promote the development of the entire value chain of power batteries. Specifically, optimize the industrial organizational structure and increase industry concentration. The production of power batteries requires metal resources such as lithium, nickel, and cobalt. In order to ensure a stable supply of power batteries for electric vehicles and ensure the long-term healthy development of the industry, there is an urgent need to stabilize and even lock upstream resources. The "Plan" encourages qualified enterprises to improve their ability to support key resources such as lithium, nickel, cobalt, and platinum.

　　As the scale of electric vehicles grows, how to effectively recycle retired batteries has become an urgent problem for the industry. According to the "Plan" circulated online, it is necessary to improve the multi-level and multi-purpose recycling system of power batteries and encourage the joint construction of shared recycling channels. At the same time, establish and improve the management system for power battery transportation, storage, repair and maintenance, safety inspection, scrapping and exit, and strengthen full life cycle supervision.

　　In addition, the online "Plan" also proposes to establish and improve the power battery modular standard system, accelerate breakthroughs in key manufacturing equipment, and improve process levels and production efficiency.

　　Breaking barriers to the development of the hydrogen fuel cell industry

　　As one of the important routes for the development of the new energy vehicle industry, hydrogen fuel cell technology has attracted increasing attention. However, the current hydrogen fuel cell vehicle industry still faces difficulties such as the lack of breakthroughs in core technology, lack of localization of key components, lack of infrastructure, and excessive costs. The "Plan" circulated online proposes that the construction of a hydrogen fuel supply guarantee system should be promoted in an orderly manner. Specifically, improve the economy of hydrogen fuel production, storage and transportation: carry out the application of industrial by-product hydrogen and renewable energy hydrogen production technology according to local conditions, and accelerate the industrialization of advanced and applicable hydrogen storage materials. Carry out the demonstration and application of various forms of storage and transportation technologies such as high-pressure gas, low-temperature liquid and solid, explore the construction of hydrogen transportation pipelines, and gradually reduce the cost of hydrogen fuel storage and transportation.

　　In terms of infrastructure, companies are guided to rationally deploy hydrogenation infrastructure based on hydrogen fuel supply and consumer demand. The "Plan" reported online also stated that enterprises will be supported to use existing sites and facilities to carry out comprehensive supply services of oil, gas, hydrogen and electricity.

　　The imperfect regulatory system is also one of the obstacles hindering the development of the hydrogen fuel cell industry. The "Plan" circulated online states that the policy and regulatory environment will be improved and a policy mechanism will be established to promote the coordinated development of hydrogen fuel production, storage and transportation. Improve the management specifications for hydrogenation infrastructure project establishment, approval, construction, acceptance, and operation, strengthen safety supervision of hydrogenation infrastructure, and improve hydrogenation infrastructure safety standards and testing and certification capabilities. Improve the standards and testing system for high-pressure hydrogen storage devices for vehicles.

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