The cutting-edge technology of Yixinfeng has significantly increased the battery life

In the surging wave of the rapid development of the global lithium battery industry, the "Vico Cup・OFweek 2024 Lithium Battery Industry Annual Conference" has become a crucial platform that gathers industry wisdom and leads the development direction. Mr. Wu Songyan, the founder of Guangdong Yixinfeng Intelligent Equipment Co., Ltd., was invited to attend this grand event due to his profound experience and outstanding achievements accumulated in the field of lithium battery equipment. He delivered a wonderful speech centered on the micro-processing technology of the surface of the large cylindrical battery electrode sheet, bringing new thoughts and inspirations to the development of the industry.Lithium - Ion Battery Equipment

Mr. Wu Songyan deeply analyzed the current situation and prospects of the large cylindrical battery industry. At present, large cylindrical batteries show a strong development momentum in the market. According to industry forecasts, the global production capacity of large cylindrical batteries is expected to reach 500GWh in 2025, with an annual compound growth rate of over 30%. Technologically, from continuous upgrades in size, optimization of tab design, to material changes, these advancements have continuously promoted the improvement of large cylindrical batteries in terms of energy density, charging and discharging efficiency, etc., making their applications in the fields of new energy vehicles and energy storage increasingly extensive.

However, the safety issues of large cylindrical batteries cannot be ignored. Mr. Wu Songyan pointed out that incidents such as the fire at a Korean battery manufacturing plant in 2024, the spontaneous combustion of Tesla vehicles, and the explosion of electric vehicle batteries in an elevator all highlight the serious consequences brought about by battery thermal runaway. Burrs or dust on the surface of the electrode sheet, problems related to the electrolyte, uneven winding tension, and unreasonable charging and discharging strategies are all important factors that trigger thermal runaway. This not only concerns product quality and user safety but also poses a challenge to the sustainable development of the entire industry.

Aiming at these pain points in the industry, Yixinfeng has developed an electrode sheet surface treatment device based on laser etching and plasma structure micro-processing (invention patent number: CN118763185B). This technology precisely carves the surface of the electrode sheet through laser etching to form a rapid lithium ion transmission channel; plasma reconstruction reduces the tortuosity of the groove wall, increasing the electrolyte infiltration speed by 65%, the liquid injection uniformity exceeding 98%, the consistency of the charge distribution on the surface of the electrode sheet reaching the atomic level, and the effective lithium ion diffusion coefficient increasing by 2.3 times. For the treated batteries, the cycle life exceeds 1500 times with a capacity retention rate of over 95%, and the thermal runaway trigger temperature is increased by 28°C, significantly improving the safety and lifespan of large cylindrical batteries and providing an effective solution to the safety problems in the industry.

When talking about how to deal with the difficulties in the development of the industry, Mr. Wu Songyan shared Yixinfeng's strategies. Facing issues such as increased competition in the domestic market and high barriers to entry in overseas markets, Yixinfeng advocates that enterprises go global together, share resources, form alliances, and participate in exhibitions jointly to enhance their overall competitiveness. In terms of research and development, it adheres to the market demand as the orientation, breaks through technical bottlenecks, and forms differentiated advantages; focuses on niche areas, pursues excellence and specialization, and builds "specialized, refined, unique and innovative" enterprises. At the same time, it actively establishes strategic partnerships with upstream and downstream enterprises, jointly builds an industrial ecosystem, and promotes the development of the industry together.

Yixinfeng has achieved remarkable results in the field of lithium battery equipment. Over the past 20-odd years since its establishment, after several transformations and relocations, it has developed into a national-level specialized, refined, unique and innovative "little giant" enterprise. The company has a large number of professional talents and strong research and development capabilities. Currently, it has obtained 168 national patents, including 32 invention patents. Its products cover a variety of core equipment, and it can provide customers with a full set of lithium battery equipment services and factory planning and design solutions. They are widely used in domestic and foreign lithium battery enterprises and are highly recognized by customers.

Mr. Wu Songyan's speech at this annual conference demonstrated Yixinfeng's leading achievements in the micro-processing technology of the surface of large cylindrical battery electrode sheets and also reflected the enterprise's responsibility and commitment to the development of the industry. In the future, Yixinfeng will continue to uphold the spirit of innovation, keep exploring technological breakthroughs, move forward hand in hand with industry partners, contribute to promoting the high-quality development of the lithium battery industry, and help the global new energy cause reach new heights.