Comparison of the advantages and disadvantages of fuel cells and lithium-ion batteries

Fuel cell is a new type of energy conversion power battery, which is most likely to become a mainstream form in the future. However, the popularity of fuel cells is still far away, and there are many conditions that limit the development of fuel cells. Compared with fuel cells, lithium batteries are a conventional storage type power battery. Through the following comparisons, we compare the two types The advantages and disadvantages of batteries should be sorted out. Relative cost. The high cost of fuel cells and the complex hydrogen production process have become important obstacles to the development of fuel power cells. Hydrogen is obtained by electrolysis or steam reformation. However, the cost of these two methods is quite high, and the cost of producing the same quality of natural gas is 1/2 or even 1/3 of that of hydrogen production. The production cost of lithium-ion batteries is relatively low. In addition, it is very convenient to recharge and use. Compared with other portable energy sources, it has a higher cost-effectiveness. ② Impact on the environment Fuel power batteries and lithium-ion batteries have little impact on the environment. The product of combustion is water, and there is no greenhouse gas generated after gasoline/diesel combustion. The discharge products of lithium-ion batteries may be lithium oxide, lithium hydroxide, etc., and will not affect the environment. In addition, lithium-ion batteries can be reused. ③The particularity of the manufacturing material The polymer membrane is used as the electrode in the fuel power cell to support the generation of electrical energy after the hydrogen-oxygen reaction. The polymer film must be specially processed to withstand high temperature and mechanical stress. Lithium ions in lithium-ion batteries can absorb charge, so the battery has the ability to store electricity. Lithium ion is light in weight and has strong plasticity. At present, almost all conventional electronic devices use lithium batteries. Lithium batteries have been integrated into all walks of life in our lives. When there is no better choice, the current electric vehicles basically use lithium batteries as a power source. ④There is still a lot of room for improvement in technologies related to fuel power cells with potential in the future. After the cost of fuel power battery can be reduced, it is likely to be a real alternative energy source for gasoline/diesel fuel. For lithium-ion batteries, improving energy density and cycle life is also a very good driving energy source. In the future, lithium batteries will still exist for a long time. Many characteristics of lithium batteries cannot be replaced by fuel cells. ⑤Safety in use The safety of lithium-ion batteries has always been a topic. With the upgrading of technology, safety will gradually improve. Among them, temperature control is of great significance to the safety of lithium batteries, especially for large-scale batteries. The thermal management of the power battery is very important. The organic solution used in the lithium battery is flammable. Unsafe responsibility will lead to thermal runaway, leading to the combustion and explosion of flammable liquids. Regardless of whether it is a fuel cell or a lithium-ion battery, safety is very important. However, the controllability of factors affecting safety of a fuel power battery is relatively easier to control than a lithium-ion power lithium battery. Finally, the author believes that fuel power batteries are an important direction for electric vehicles in the future. Compared with lithium-ion batteries, the advantages and disadvantages of fuel power batteries are obvious. But from a long-term perspective, it is not yet known which fuel power battery or lithium-ion battery will be widely used in the future. It depends on its overall performance and manufacturing cost to determine the details. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete.