Technological innovation reduces the cost of -Lithium - Ion Battery Equipment

Technological innovation reduces the cost of lithium batteries -Lithium - Ion Battery Equipment

A few days ago, Wan Gang, Minister of the Ministry of Science and Technology, when summarizing the development achievements of new energy vehicles, mentioned that "the price of the power battery system has dropped below 2 yuan/Wh, and the production capacity has reached 200G Wh, which basically meets the needs of industrialization and the market. ."

How did the price of power batteries become the price of cabbage?

Recently, the project "Graphite and Graphene Materials for High-Performance Li-ion Batteries" from Shenzhen won the second prize of the National Technology Invention Award. completed research results. The reporter learned in the interview that it was the unremitting efforts of these scientific researchers that made the power battery cheaper and allowed the new energy vehicle to enter the public life.

What exactly does this technology do? How awesome is it? Why was it completed in the Pearl River Delta region of Guangdong? Recently, Professor Li Baohua from the Shenzhen Graduate School of Tsinghua University, one of the main completers of the project, accepted an exclusive interview with reporters to reveal the mystery of this technology to readers.

How good is the technology? The lithium battery industry has become a tripartite trend between China, Japan and South Korea

New energy vehicles are mainly composed of battery drive system, motor system, electronic control system and assembly. Among them, the motor, electronic control and assembly are basically the same as traditional cars, and the reason for the difference is the battery drive system. From the perspective of the cost composition of new energy vehicles, battery drive systems account for 30% to 45% of the cost of new energy vehicles, while power lithium batteries account for about 75% to 85% of the cost composition of battery drive systems.(Lithium - Ion Battery Equipment)

The core of solving the high price of new energy vehicles is to reduce the one-time procurement cost of power lithium batteries. The "Graphite and Graphene Materials for High-Performance Lithium-ion Battery" project belongs to the manufacturing technology of graphite and carbon products in inorganic non-metallic materials, which optimizes the charging and discharging rate, cycle and high and low temperature performance of lithium-ion power batteries, greatly improving my country The deep processing technology and utilization level of natural graphite resources will improve the international competitiveness of my country's lithium-ion battery industry.

How awesome is this technology? Li Baohua explained to the reporter the ins and outs of the development of this project. It turned out that Japan was the first in the lithium-ion battery manufacturing industry, and it used artificial carbon graphite materials for the production of lithium-ion battery anode materials, which greatly promoted the commercialization of lithium-ion batteries. Why use artificial graphite material? Due to the lack of natural resources in Japan, there is no natural graphite mineral reserve, and artificial graphite materials mainly come from the petrochemical and steel industries. At that time, the technology of artificial graphite anode material was in the hands of the Japanese. Later, South Korea also learned Japanese technology, so the early lithium-ion battery market has always been dominated by Japan and South Korea. However, the high energy consumption and high cost of the artificial graphite preparation process restrict its price and application scale.

The situation in my country is different from that in Japan and South Korea. my country has abundant reserves of natural graphite resources. If natural graphite can replace artificial graphite in the production of lithium-ion batteries, on the one hand, it can save energy and reduce costs. Compete to achieve corner overtaking. The significance of this is self-evident. Therefore, the research on natural graphite has been carried out in my country since the last century. Professor Kang Feiyu's team is the earliest scientific research team engaged in the deep processing and application of natural graphite in China.

The project team has been tackling key problems for more than 20 years, from the earliest application for the invention patent of natural graphite anode in China, breakthrough in key technologies, to the realization of the large-scale application of natural graphite and graphene, with the help of resources and technical advantages, the lithium-ion battery has finally become "high quality and low price" , forming a three-pronged pattern of "China, Japan and South Korea" in the lithium-ion battery industry.



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