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Experts suggest China lithium built third square diaphragm detection platform trial

A year ago, Chinese world lithium battery diaphragm productsaccounted for only about 6% of the market share, but in the next 5 years, the world will suffer from a product or Chinese lithium battery diaphragm at the fire.

To provide consultation and data display, as of 2012 May, China has announced the launch of separators for lithium batteries and 21 companies, announced the production capacity of 477000000 square meters / year, compared with 2011, China market consumption of only 160000000 square; considering the other under construction orpreparation, not public project, if all the project put into operation in 2015, total production capacity will be 1200000000 square meters / year, far exceeding even the world needs.

"China diaphragm products, mainly imported from South Korea and Japan equipment production, lack the ability of independent development of new products, on the one hand help to profit from the high-end market, on the other hand, easy to be eliminated in the emergence of new technology of." In July 2nd, the chief scientist,Shenzhen Hui Cheng subsidiary Jiangxi Xiancai nanofibers technologycompany vice chairman Hou Haoqing said in an interview that.

Hou pride analysis, lithium batteries in two application market,communication battery field basically for Chinese products to control,but the diaphragm product battery basically have to rely on imports,"whether it is from the heat resistance, yield, diaphragm China batteryno one could have got off".

The lithium battery has four key materials: negative electrode materials, electrolyte, cathode materials and the diaphragm, the former three has been basically achieved domestically replacement, and the nationalization of the diaphragm is just beginning, such productsaccounted for lithium battery manufacturing cost 1%-20%.

In recent years, Chinese China set off a wave of investment fever inbattery separator. From has been put into operation and the proposed or under construction projects, technical route used in diaphragmproject including dry, wet and electrospinning process, product types include single layer of polyethylene (PE), polypropylene (PP)monolayer, and polyimide (PI) films. IDG capital's chief representative in Shenzhen, Yao Haibo thinks to need specific subdivision, battery a,electric tools, electric bicycles have been part of the implementation of import substitution, lithium battery separator products of pure electric vehicles, hybrid cars are basically imported from abroad, but "weprefer domestic substitutes to win market space".

In 2011, the Japanese enterprises occupy the lithium battery separatormarket share of over 50%, America enterprises accounted for more than 28%, South Korea's SK is 12%, Chinese enterprise is about 6%.

The size of the global diaphragm $1860000000 market in 2011, is expected to reach $4380000000 in 2015, an average annual 29% growth.

As the highest and the localization of technical barriers to the lowestrate of lithium ion battery materials, 2011 China still has 80% of thediaphragm need to import.

As the highest and the localization of technical barriers to the lowestrate of lithium ion battery materials, 2011 China still has 80% of thediaphragm need to import. "China products although in yielddeficiencies, high-end technology also has the bottleneck, but the keyapplication in the market, domestic products occupy the ratio will be raised."

Yao Haibo said, compared with the imported products, some manufacturers China products in the performance gap has beennarrowing, and has a price advantage. Encouraged by policies and market driven, China dozens of investors to itch for a try on diaphragmproduction, but technical constraints and investment overheating is toface the risk of. Encouraged by policies and market driven, Chinadozens of investors to itch for a try on diaphragm production, buttechnical constraints and investment overheating is to face the risk of.

Hou pride discloses to the reporter, Jiangxi first material has PIdiaphragm project production is expected to officially put into operation in September this year, this year the production capacity is up to 10000square meters / day, the products are mainly used in the field of power battery. Different from the import of equipment, technology R & D,"Shanghai Hengdong electric second half to experiment with our products, can effectively reduce the cost of lithium batteries". Adiaphragm executives think, large-scale investment will bring to solve technical bottlenecks, which has been validated in the field of cathode materials, anode materials, even as a successful case in the photovoltaic, wind power, "Chinese land, artificial, upstream and downstream areas of aggregation, the diaphragm product quality in do slightly behind the international one step at the same time, the lowestprice to achieve international.

A diaphragm executives think, large-scale investment will bring to solve technical bottlenecks, which has been validated in the field of cathode materials, anode materials, even as a successful case in the photovoltaic, wind power, "Chinese land, artificial, upstream and downstream areas of aggregation, the diaphragm product quality in do slightly behind the international one step at the same time, the lowestprice to achieve international.

Lib separator is one of the four key materials of lithium battery.Recently, driving in the policy incentives and lithium battery market, a wave of investment fever is sweeping over lib separator area, planned capacity has exceeded global demand potential. But due to high technical barriers, the current China product yield and quality is not just as one wishes, about 80% still need to import. Asking experts in 2012China lib separator conference held recently,: foreign products and technology to keep the competitive advantage of the situation, the industry must attach great importance to improving the quality andefficiency of investment, and constantly improve the technology system, the establishment of coordination mechanism of upstream and downstream integration, efforts to improve the yield and productquality of the project.

Because the diaphragm high margin products, import substitution of the market space is large, the local government welcomes and new materials, new energy automobile industry


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