"At present, the most critical bottleneck affecting the promotion of new energy vehicles is safety, which has become the consensus of experts, scholars, enterprises and users in the industry. Security issues will continue to be concerned for some time to come. " Zhu Yulin, project director of Zhefu Intelligent System (Shanghai) Co., Ltd., said in an interview with Commercial Bus Terminal Network at CIBEExpo 2019 Shanghai International Bus Show.

With the qualification of national high-tech enterprise, Zhefu is the first enterprise in China to put forward "active safety+monitoring and early warning+passive safety" for thermal runaway of power batteries, which is unique in the industry.

Seize the opportunity-insight into hidden dangers and layout in advance

The safety problem of the new energy automobile industry has been widely mentioned in the past year or two. In fact, as early as 2015, Zhefu foresaw the safety hidden dangers of new energy vehicles and devoted himself to developing products to eliminate hidden dangers.

According to Zhu Yulin, all this is due to the keen insight and accurate judgment of Li Fei, chairman of Zhefu. On the eve of the take-off of new energy vehicles, Li Fei realized that the key to the development of new energy vehicle industry is power battery technology and battery safety.

The key to battery safety is to solve the problem of thermal runaway, and the core is to cool the battery.

Therefore, Li Fei visited new energy automobile enterprises all over the world, inspected and learned relevant experience, and was surprised to find the powerful effect of the Louvre oil painting protection inhibitor, and creatively applied it to solve the thermal runaway of the power battery, becoming the first enterprise in the world to use liquid to conduct temperature management and fire suppression on the thermal runaway of lithium-ion batteries.

On this basis, Zhefu increased R&D investment, and developed a comprehensive intelligent security closed-loop solution of "active safety+monitoring and early warning+passive safety" by studying the mechanism of thermal runaway of batteries, aiming at the suppression of thermal runaway and its spread.

When the complete closed-loop solution came into the market, the safety concerns of new energy vehicles in the market became more and more obvious, and Zhefu just opened a cooling prescription for the "hot" market at the right time, and the complete solution for mass production was well received.

Bus companies in more than 20 cities, including Beijing, Shanghai, Tianjin, Hangzhou and Guangzhou, are enjoying Zhefu's products. Large manufacturers such as Yutong Bus, Jinlong Bus, BYD and Foton Ouhui are also long-term partners of Zhefu.

Focusing on the safety of power batteries to reduce safety accidents in the new energy automobile industry, Zhefu has taken a very correct and firm road.

Leading the way-battery thermal runaway comprehensive intelligent security closed loop

As the first enterprise in China to provide a four-level closed-loop safety solution of "active safety+monitoring and early warning+passive safety+fire fighting" for thermal runaway of lithium batteries, Zhefu has solved the problem of thermal runaway of batteries for new energy vehicles, energy storage systems and power exchange stations, and has taken the lead in the industry.

At the Shanghai International Bus Show, Zhefu also exhibited its products, which was praised by visiting enterprises and guests.

On the afternoon of December 11th, Zhu Yulin, as a guest speaker, introduced the comprehensive intelligent security closed-loop system in detail.

The system consists of Zefu Battery Intelligent Thermal Management System (BITS), Zefu Battery Compound Fire Detector (BIDS) and Zefu Lithium Battery Fire Suppression Device (BIES).

Zefu battery intelligent thermal management system is recognized by the market as a battery safety management solution with excellent technology, good performance, high reliability and high cost performance. The system adopts intelligent control mode, and controls the battery temperature between 25℃ and 35℃ all year round, so as to eliminate the safety and cruising range problems caused by high and low temperature of the battery. It is an independent battery intelligent thermal management system with the largest loading capacity in the market.

Zefu battery compound fire detector integrates temperature sensor, smoke sensor, gas sensor and VOC sensor, collects the collected data for analysis, judgment and processing, and realizes a series of functions of early perception, intelligent judgment, early warning and fire alarm, which can give an early warning at least 10-15 minutes earlier than the conventional monitoring device.

Zefu lithium battery fire suppression device adopts colorless, odorless and non-conductive liquid inhibitor, and the fire extinguishing liquid is effective for 10 years. It has the characteristics of strong and rapid cooling, strong fire extinguishing ability, suffocation and anti-re-ignition. It can comprehensively monitor and effectively protect the battery box, battery compartment, motor compartment, etc., without secondary injury, and it is clean and environmentally friendly.

These three systems together constitute Zefu lithium battery safety patron saint (BSS) system, and all of them are indispensable, working together to fundamentally solve the problem of thermal runaway of the battery.

Continuous innovation-based on research and development, pursuing Excellence

Such achievements can not be achieved without the company's continuous technological innovation. To this end, Zhefu established the first "Thermal runaway management technology research institute for new energy vehicles" in China, and hired an authoritative expert in the industry, Professor Shanghai Jiaotong University, as the president of the Thermal Management Technology Research Institute, and Professor Nanjing University of Science and Technology as the president of the Thermal runaway technology research institute, focusing on the research of comprehensive intelligent and safe prevention and control management solutions for power lithium batteries.

In cooperation with the State Key Laboratory of Fire Science of China University of Science and Technology, the "New Energy Fire Fighting Test Base of the State Key Laboratory of Fire Science" was established, and a professional R&D team with innovation, Excellence and experience was established.

37 national patents have been applied, including 10 invention patents, 27 utility model patents and 8 software copyrights. The products were appraised as "international advanced level" by the novelty retrieval of the Ministry of Science and Technology, and the Ministry of Industry and Information Technology awarded the Registration Certificate of Scientific and Technological Achievements, and won the "Best New Energy Bus Parts Award" and "Safety Technology Innovation Award" issued by the Ministry of Communications for many times.

With the investment of these powerful scientific research forces, I believe that in the future, Zhefu's power battery safety management solution will be more advanced and continue to lead the development of the industry.。

"Not only pure electric commercial vehicles, but also new energy passenger cars, energy storage and hydrogen fuel cell vehicles will also become the targets that Zhefu will continue to overcome in the future, and strive to make efforts in the direction of the whole industrial chain of new energy vehicles." Zhu Yulin said.

Determined to become the first brand in the global new energy smart security field, Zhefu will continue to carry out technology accumulation and market development in a consistent manner as a pioneer and leader, build a safety protection network for lithium batteries in the domestic new energy automobile industry, and strive to win the "defense war" for power battery safety.