Lithium-rich manganese-based batteries attack high-end passenger cars Can Yuyou Power "turn over the road"?

Under the pressure of the amount of subsidies directly linked to energy density, power battery companies are conducting an energy density upgrade competition. Unlike most battery companies, Yuyou Power has taken the lead in mass production of a new generation of power batteries to seize the high-end passenger vehicle market while increasing the energy density of existing products.

"Since June, the company has announced a number of new models supporting lithium-rich manganese-based batteries, mainly in the middle and high-end passenger vehicles." Mao Xiaofang, sales director of Yanyou Power, said that the new generation of lithium-rich manganese the base battery is a magic weapon for Yuyou Power to participate in the market competition. At present, the company has achieved mass production.

On April 24th, the 2018 High-tech Lithium-Ion Supply Chain Tour Research Group walked into Yuyou Power to explore the mystery of this battery company that can lead the mass production of lithium-rich manganese-based batteries.

As one of the most influential brand activities in the industry, the high-tech lithium battery supply chain tour research activity has reached the seventh session. This year's tour starts from South China Station and is expected to take 2 months to span 30+ cities in 4 major regions. Visited 50+ mainstream power battery companies in China use the footsteps to measure the development of the industry, and visit the industry to experience the pulse of the industry. The tour was sponsored by Orient, Victaulic, Radium Technology, Xinlonghao, Today International, Tektronix Technology, Yihong Intelligent and other lithium-ion companies.

Yuyou Power is part of Zhejiang Zhixin Holding Group, which specializes in producing safe, efficient and durable electric vehicle power and energy storage batteries. The battery material system covers ternary, lithium iron phosphate, lithium titanate, and new composite lithium manganate. The products include soft pack batteries.

The company has three production bases in Huzhou, Nanxun and Zhaoqing. The first phase of Zhaoqing Base has been put into production, with an annual production capacity of 1.5 billion Wh. The products cover ternary, lithium iron phosphate, lithium titanate and new composite lithium manganate batteries. The total production capacity of Zhaoqing base is 3 billion Wh. It is planned to be completed in two phases. The Huzhou base will also be mass-produced. By then, the total power capacity of the company's power battery will reach 4-6gwh.

It is reported that Yuyou Power has mass-produced ternary soft pack battery with energy ratio of 240Wh/kg, and lithium iron phosphate soft pack battery with energy ratio of 175Wh/kg. In 2018, the company needs to realize ternary soft pack battery specific energy of 260Wh/kg. , Lithium-rich manganese-based batteries than the energy of 260-280Wh / kg and other products in volume production.

It is understood that after 8 years of research and development, the excellent power research and development team uses a variety of interface protection schemes such as material doping modification and application of special additives in high-voltage electrolytes, through material nano-materialization and carbon layer coating technology. A variety of composite conductive agents (such as graphene, carbon nanotubes and other highly conductive substances) are used in the manufacturing process to improve material rate performance.

In December 2017, Zhejiang Yiyou Power System Co., Ltd. (hereinafter referred to as “Yuyou Power”) Zhaoqing Base Phase I project was officially put into operation. It is worth noting that while the project is put into production, Yanyou Power also released an industrialized lithium-rich manganese-based power battery, which makes the application of a new generation of high-power battery in new energy vehicles come ahead of schedule.

At present, the lithium-rich manganese-based battery rate performance of the excellent power mass production is more than 90% for 3C discharge/1C discharge, and the charge and discharge cycle for 1C is nearly 600 weeks. The mass production is stable at 200-220Wh/kg, and the energy density of mass production is expected to reach 2018 260Wh/kg.

Mao Xiaofang said that Yuyou Power always puts system safety and performance first, insists on the use of unique dual protection group technology, and on this basis, enhances the system energy density of the company's power battery through various ways.

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