Along with new energy vehicles, solar energy, wind power grid-connected， mobile communication base
stations, electric logistics vehicles ... In the development of the new energy industry, power batteries play
a pivotal role.
With the development of new industries such as new energy vehicles, renewable energy and smart grids,
the research and development of power lithium batteries has become the frontier of research.
Since 2004, the team of Professor Ma Zifeng of the School of Chemistry and Chemical Engineering of
Shanghai Jiaotong University has been uniting BYD Co., Ltd. (hereinafter referred to as BYD), Sinopoly
Battery Co., Ltd., Jiangsu Lenon Battery Co., Ltd. (hereinafter referred to as Jiangsu Lenon), Shanghai
Paineng Energy After 15 years of hard work, companies such as Technology Co., Ltd. have built a lithium
iron phosphate power battery technology system with independent intellectual property rights, which
has been widely used in new energy vehicles and energy storage engineering systems. The "Key
Technology for Manufacturing and Application Process of Lithium Iron Phosphate Power Battery"
completed by the team in cooperation with BYD and other units won the second prize of the National
Science and Technology Progress Award in 2018. From new synthesis reaction design to 10,000-ton
In 1996, lithium iron phosphate was applied to power lithium battery research. However, to achieve
large-scale application of lithium iron phosphate, it is necessary to establish a process and equipment
with a ton-level production capacity.
Ma Zifeng and others analyzed the synthesis processes of many well-known international companies
and found that these reaction processes will produce harmful gases such as carbon monoxide and
ammonia, and have a long sintering time and high energy consumption. In order to reduce production
costs and reduce pollution in the production process, the team proposed a new synthesis reaction of
lithium iron phosphate, and prepared a new structure of cathode material. In 2004, Professor Ma Zifeng's
team carried a new method and cooperated with Hengdian Group East Magnetic Co., Ltd. to develop
lithium iron phosphate cathode materials. With the funding of the Zhejiang Province Science and
Technology Achievement Transformation Project in 2006, the project built a 300-ton / year full-process
lithium iron phosphate pilot line, and developed a lithium iron phosphate battery for electric vehicles in
cooperation with Shanghai Delangen Battery Company. Large-scale production line construction has laid
a good foundation.
The scientific and technological achievement appraisal committee composed of industry experts
unanimously believes that the research results of Ma Zifeng's team have important innovations in
material synthesis theory, process and battery design, and the economical synthesis of elemental iron
atom economic lithium iron phosphate is the first in the world. Become the world's largest
manufacturing and application country
To manufacture a power battery with excellent performance, it is necessary not only to have excellent
cathode materials, but also to optimize the chemical system of battery materials and find suitable anode
materials and electrolytes. In addition, the power battery manufacturing process is also very important
for improving battery performance. The team of Ma Zifeng invented a configuration of the coating
solution and its coating method, proposed the corresponding process, optimized the technical
parameters, and formed an ultra-high rate, ultra-long cycle life nano lithium iron phosphate power
battery and a new method of manufacturing it And solved the problem of low temperature cold start and
high rate of lithium iron phosphate battery. In 2015, the R & D team cooperated with Jiangsu Zhongxing
Paineng Battery Co., Ltd. to carry out the research and development and industrialization of low-
temperature high-rate lithium iron phosphate power batteries, which were widely used in mobile
communication base stations.
How much power is left in the power battery system directly affects the cruising range of the car. The
amount of battery power can be described by the state of charge (SOC) of the battery. SOC is a complex
and dynamic process that is closely related to the operating temperature, charging and discharging
speed of the battery system. Ma Zifeng's team has developed a new SOC estimation model. Compared
with international advanced indicators, the model's estimation accuracy of battery health has been
improved by about 5 percentage points to 97%. In addition, the team also cooperated with BYD to
develop a SOC estimation model based on rolling time-domain optimization, which further improved the
SOC estimation accuracy to 99%.
After 15 years of industry-university-research cooperation, China has become the world's largest country
in the manufacture and application of lithium iron phosphate batteries. Lithium iron phosphate power
batteries have been widely used in electric buses, electric logistics vehicles, and passenger vehicles.
Powered electric buses are also exported to the United States, Japan, the United Kingdom, Europe and
And PLB is a manufacturer that focus on LFP battery, is dedicated to green power energy, and hope
would be as your most reliable partner.