On the eve of new energy technology breakthrough, are we ready

The research and development of zero-carbon solar fuel technology is the focus of great attention in the scientific research community. According to the report, solar fuel research is at the forefront of the volume of publications and attention, indicating that humanity continues to pursue the use of sustainable natural resources (water, carbon dioxide) and energy (solar energy), in order to obtain green fuels through more ecological and efficient conversion mechanisms. Scientists have made a lot of efforts in the fields of photolytic water to produce hydrogen and solar fuel, but there is still some distance from application. For example, photocatalytic hydrogen production is still in the laboratory research and development stage, and how to reduce the cost of solar fuel preparation is still the bottleneck of its industrialization.

Industrialization encountered a bottleneck, who is the "obstacle" of new energy application?

The overall technology conversion rate of research results in the global new energy field is low, and the combination of industry, university and research needs to be strengthened; Energy storage technology and energy Internet have attracted global attention

Chen Wei, deputy director of the Strategic Information Center of the Wuhan Literature and Information Center of the Chinese Academy of Sciences and research librarian, concluded that the overall technology conversion rate of research achievements in the global new energy field is low, and the combination of industry, university and research needs to be strengthened. Relatively speaking, the conversion rate of research results of energy storage, biomass energy and solar energy is relatively high, and lithium-ion batteries and organic solar cells are technical hot spots of common concern for industrial transformation at home and abroad.

The results show that the research of energy storage, solar energy and hydrogen energy technology has the highest market attention at home and abroad, and the technologies with relatively high industrial conversion are energy storage, biomass energy and solar energy technology. The new energy technology hotspots of common concern in the world and China are concentrated in the field of battery energy storage and solar photovoltaic, especially lithium-ion batteries and organic solar cells.

Among new energy technologies, the most concerned are energy storage technology and energy Internet.

Energy storage technology is an important component of the construction of modern energy systems, especially the number of papers published in battery energy storage, the growth rate and the comprehensive performance of high-quality research ranked first in the evaluation. Chen Wei introduced that renewable energy power generation, smart grid and distributed multi-energy complementary systems, electric vehicles are the key directions of low-carbon transformation of the power system in various countries, and energy storage technology is an essential technical support to achieve changes in the above areas, and is a soft link key node of the future energy system with flexible, inclusive and balanced functions.

With the wide application of energy storage technology in energy production, consumption and low-carbon smart transformation, it is increasingly urgent to improve the safety, energy density, capacity scale, endurance, service life and reduce battery costs. The paper and patent analysis show that electrode materials, electrolytes and other battery materials are the research hotspots to improve battery performance. Experts in the field believe that lithium iron phosphate batteries and ternary lithium batteries have successively become the main technical direction of power battery material innovation. Battery performance breakthrough routes mainly include energy storage battery system structure innovation, battery pack space utilization optimization, battery energy density and safety improvement, and battery cost reduction.

Energy Internet is the new infrastructure of modern energy system. With the increasing demand for energy and the emergence of the trend of electrification, the future of the world will accelerate the formation of oil, natural gas, coal, renewable energy based diversified energy structure, and in the middle of the 21st century to complete the transition to non-fossil energy based energy structure. Therefore, although the energy technology innovation of energy varieties is still important, the breakthrough of system technology such as the integration combination, fusion matching, intelligent operation and maintenance, supply and demand two-way interaction, and multi-network interaction is also particularly important and urgent. At the same time, the modern energy system inevitably needs the support of cross-border science and technology integration such as big data mining, information flow management, detection and network ubiquity, and decision optimization.

In the scenario of global carbon neutrality, the energy system will have the basic attributes of diversity, wisdom, safety and flexibility, which means that the importance of energy Internet technology, smart energy system technology and other research is highlighted, and the application of basic research and applied technology research and development will continue to receive attention.