The research team walked into the production workshop and product display area of the enterprise to observe the running state of the automatic production line of graphite composite bipolar plate on the spot, and understand the core products such as powder molding integrated flow plate in detail. In the process of investigation, the research team carefully asked enterprises about the promotion of technical research, product landing, industry-university-research cooperation and other aspects, and mastered the front-line situation of the industrialization of hydrogen energy core components.

During the research and exchange, the relevant person in charge pointed out that the new district should rely on its own industrial base to find the subdivision track for differentiated layout. Continue to promote the joint research of industry, education, research and application, accelerate the incubation and landing of innovative projects, increase the openness of application scenarios, continue to optimize the business environment, and promote the sustained growth of hydrogen energy industry, so as to become a new growth driver for regional high-quality development.

Relying on the platform of listed companies, enterprises focus on the industrialization of carbon-based composite plate

Hunan Gengchi New Energy is the core carrier of Daimler New Materials' hydrogen energy and energy storage track, and it is also the early enterprise to realize the large-scale manufacturing of high-precision powder molding graphite composite bipolar plate in China. The company has been rated as a high-tech enterprise, a technology-oriented small and medium-sized enterprise, and a specialized and new small and medium-sized enterprise in Hunan Province. It also undertakes the work of the vice president unit of the Hydrogen Energy Industry Association in Hunan Province.

From the point of view of the technical system, the enterprise has opened up the whole chain of independent technology of raw material preparation, composite material formulation design, molding process and special equipment development. Relying on self-developed automated production line, the company has an annual output of 500,000 sets of bipolar plate delivery capacity. In terms of product specifications, the thinest mass production molded bipolar plate can reach 0.25mm, and the thickness of double-sided flow plate is 0.62mm. The plate has high compactness, uniform internal structure, stable air tightness performance, and can reach 30000 hours of service life under complex working conditions.

This carbon-based composite plate is not limited to a single track, the product can be adapted to hydrogen fuel cells, flow cells, electrolytic water hydrogen production three directions. The main product for hydrogen fuel cells has been tested and verified by a number of industry head customers, and has entered the phase of batch supply.

Adapted to energy storage needs, flow battery special plate brings technological innovation

In view of the demand of new power system construction, enterprises develop special carbon composite plate for flow battery synchronously. The product adopts the powder molding integration molding process to complete the precise manufacturing of the flow channel structure at one time. Compared with the traditional processing method, the dimensional accuracy and product consistency of the new scheme are significantly improved, which can optimize the distribution state of the electrolyte in the stack, reduce the internal resistance loss, and improve the overall working efficiency of the stack.

The integrated forming structure can also improve the sealing performance and mechanical strength of the plate, reduce the risk of leakage, deformation and other failures. At the same time, the process simplifies the production process, controls the manufacturing cost, and provides component support for the large-scale commercial promotion of flow battery. In the context of the continuous growth of long-term energy storage demand, such low-cost, long-life plates can effectively reduce the overall investment of energy storage stations.

Industry, university and research work together to participate in the construction of industry standards and improve the industrial ecology

In the construction of innovation system, Gengchi New Energy and Hunan University and other scientific research platforms set up a long-term industry-university-research cooperation mechanism, set up a professional R & D team, and continue to carry out research on carbon-based composite materials related technologies. The company is deeply involved in the preparation of group standards such as "fuel cell graphite bipolar Plate", and uses product practical experience to help the industry chain fill in the short board and improve the industry specification of hydrogen energy storage components.

The localization of core materials is the key to reduce the cost of hydrogen energy and long-term storage industry. As the core basic component inside the stack, the performance, yield and cost of the bipolar plate directly determine the commercial competitiveness of hydrogen fuel cells and flow cells. The powder molding route used by enterprises can get rid of the restrictions of traditional mechanical processing, and it is easier to realize mass and low-cost manufacturing.

We will seize regional industrial opportunities and continue to promote the large-scale promotion of core components

This field investigation reflects the emphasis of Xiangjiang New Area on the layout of hydrogen industry, and also recognizes the industrialization achievements of Gengchi new energy technology. In the next step, the enterprise will implement the development direction proposed in this research, seize the development opportunities of regional hydrogen energy industry, continue to increase the investment in research and development resources, and deepen the collaborative innovation of industry, education and research.

The enterprise will accelerate the industrialization of self-research technology, continue to optimize product performance and delivery capacity, and deeply integrate into the construction of hydrogen industry cluster in Xiangjiang New Area. Relying on the mature bipolar plate products, we will continue to provide domestic core components for the hydrogen fuel cell, liquid energy storage and electrolytic hydrogen production industry chain, and help the construction of regional industrial clusters in the future.