Explore the transformation of lead batteries where to go

There are only two general times when an industry new technology exchange meets the elites of the industry. One is the period of brutal growth of the industry, and the other is the time when the crisis comes. Obviously, the 3rd National Symposium on New Lead Battery Technology held in Tai'an, Shandong, is when the industry is generally under pressure.

Since the beginning of 4 years ago, the Chinese lead battery industry has begun to consider such a proposition: “Where will the lead battery development go?” that was the subject of discussion at the first National Symposium on Lead-acid Battery Technology. . Four years later, China's lead battery industry suffered a serious excess of conventional product capacity, resulting in a substantial decline in corporate profits. The development of advanced high-energy lead-acid batteries in emerging markets is lagging behind. The topic of transformation and upgrading and finding a way out is even more urgent.

Still on the road

Yang Xinxin, president of Chaowei Group, stated that lead batteries have been enduring since the invention of Plant in 1859 and have made enormous contributions to humankind since 155 years ago: automobiles, ships, tanks, etc. need it as a starting power source, telecommunication mobile, and power plants. , computer systems and automatic control systems, etc. need it as a backup power source, submarines, electric bicycles, electric tricycles, electric vehicles, etc. need it as a power source, solar energy, wind power generation systems, and distributed microgrids, smart grids also need it as an energy storage power supply . The rapid development of industry and the demand of the market have pushed it to the climax again and again. Lead-acid batteries account for more than 60% of all chemical power sources (including lead-acid batteries, lithium-ion batteries, zinc-manganese batteries, alkaline batteries, etc.) regardless of output value or sales, and are arguably the most competitive chemical power sources at present.

Song Bin, chairman of Shandong Shengyang Power Supply Co., Ltd., also stated that in the coming period, due to its high cost-effectiveness, safety, reliability, recyclable recycling rate of more than 99%, and its technology is continuing to progress and improve, lead-acid batteries are still Will occupy an important position in the secondary chemical power supply. The total domestic lead-acid battery production in the industry in 2011 was 140 million kVAh, and it is expected to reach 270 million kVAh in 2015, which shows the growth of its demand and the extensiveness of its application fields.

However, it is a pity that the current situation in China's power battery area is almost sideways to lithium batteries, whether it is national policy or corporate strategy, and even some colleges and universities have turned the original lead-acid battery professional lithium battery professional. After the formalization and appeal of multi-channels, this kind of understanding is still difficult to change.

Wang Jinliang, vice chairman of the China Battery Industry Association and director of the Technical Service Committee, said in an interview with reporters that the product life cycle of the lead-acid battery industry has not reached its peak and has exceeded the development of the previous decades. New application areas will emerge in the future. If four-wheel electric vehicles are opened up, it will be a new opportunity. In addition, renewable energy storage systems and car start-stop batteries will bring new opportunities for the lead-acid battery industry.

From Wang Jinliang's point of view, from the perspective of industry and products, it has not reached the crossroads. At the crossroads are a number of small electric bicycle power battery manufacturing enterprises. The electric bicycle industry has developed rapidly in recent years and large amounts of investment have flocked to it. Now There is a serious surplus in production capacity. Some companies have indeed come to a crossroads. This is due to the non-standard industrial development. The technology and equipment that should be invested have not been invested.

Hu Xinguo, a professor at Harbin Institute of Technology, said that China's lead-acid battery industry is in a critical period of transformation and upgrading. The transformation and upgrading are mainly: the development of a new type of high-performance batteries; the second is to improve the level of production automation; the third is to lead recycling and reuse; the fourth is to reduce or even eliminate environmental pollution. In terms of technology, the lead-acid battery industry must concentrate on solving two major problems: First, it should be used under high-rate partial charge conditions, and the service life should be too short, and the negative electrode should be severely sulphated. For example, in hybrid electric vehicles, wind energy solar energy, energy storage and other fields. The second is that the dynamic charge acceptance capability DCA is poor, resulting in loss of braking energy recovery when the battery is used in a hybrid electric vehicle.

Song Bin said that the lead-acid battery industry and the entire industry chain need to undergo transformation and upgrading in their business development model. They need to go through continuous "technological innovation," "product upgrade," "process optimization," "equipment improvement," and "energy saving." , "Green" and "recycling," and combined with the "two integration" direction supported by the state to create a new lead-acid battery industry.