Fuel power lithium battery stack technology -Lithium - Ion Battery Equipment
In April of this year, the Ministry of Finance and other four ministries and commissions announced the "Notice on Improving the Financial Subsidy Policy for the Promotion and Use of New Energy Vehicles", which proposed to adjust the subsidy method, carry out the demonstration use of fuel-powered cell vehicles, and clearly "replace subsidies with awards" to establish hydrogen energy and The fuel-powered cell vehicle industry chain; subsequently, the "Notice on the Demonstration and Promotion of Fuel-powered Cell Vehicles" was released for comments, clarifying the detailed rules for "replacing subsidies with awards", which also strengthened subsidies for the construction of hydrogen refueling stations.(Lithium - Ion Battery Equipment)
For fuel power cell stacks, high reliability, long life and low cost are necessary conditions to ensure that the stack is more competitive. As an important direction of the energy technology revolution, hydrogen energy has become the focus of some companies' layout. For example, Shenzhen Hydrogen has developed the first hydrogen fuel power cell stack automatic processing line in China, which has realized the MES system management and control of the entire line, and all data can be recorded and traced. It is reported that the first-generation hydrogen fuel cell stack independently developed by it has a rated power of up to 180W per group, and the rated power of the entire stack is overturned at 18-36kW. The annual output is expected to reach 5,000 sets.
In June, a number of domestic companies disclosed the new progress of fuel power cell-related projects: Sailand Hydrogen Energy's annual production of 2,000 sets of hydrogen fuel power cell stack industrialization projects was filed; Xinyan Hydrogen Energy's annual output of 1,000 sets (sets) of metal The automatic processing line of plate fuel power cell stack was put into processing; the future hydrogen energy 1.5 million square meters / year fuel power cell membrane and supporting chemicals industrialization project will be completed. The rapid advancement of related projects of many companies also reflects the popularity and "favor" of fuel power cells from one side.
In fact, fuel power cells and lithium-ion batteries are both new energy sources, and there is a complementary rather than a substitute relationship between the two. At present, for new energy vehicles, both lithium-ion battery vehicles and fuel-powered cell vehicles belong to new energy vehicles. In terms of differences, fuel-powered batteries have the advantages of good low-temperature performance, long cruising range, and fast hydrogenation speed, and are suitable for forklifts and long-distance transport vehicles; lithium-ion batteries have excellent cycle performance and convenient charging facilities, suitable for Private cars, urban service vehicles, etc.
The stack is the place where the electrochemical reaction takes place, and it is also the core component of the hydrogen fuel power cell. In the hydrogen fuel power cell system, the stack technology is difficult, and its performance is directly related to the power of the hydrogen fuel power cell and even the performance of the whole vehicle. The key proton exchange membrane performance in the battery stack will directly determine many key parameters such as the service life, energy density, and hydrogen consumption per 100 kilometers of the fuel cell vehicle. In terms of cost, the stack accounts for about half of the hydrogen fuel cell system and is a high unit price component in hydrogen fuel cell vehicles.