An important breakthrough has been made in the research and development of silicon-based anode materials, which will improve the energy density of batteries
Release time:
2021-11-29 11:41
Source:
Due to the tightening of the subsidy policy for new energy vehicles, the control of production costs is very important for new energy vehicles. If the cost is too high, it has to be passed on to consumers, which may affect sales and long-term development.
For electric vehicles, the cost of the battery determines the landing cost of the entire vehicle. Among the batteries currently used, lithium-ion batteries occupy a large proportion, and it is imperative to upgrade the research and development of lithium-ion batteries. Therefore, many companies seize the opportunity to actively promote the research and development and production of lithium-ion batteries.
Recently, we learned from relevant channels that Changhong has made important breakthroughs in the research and development of high-performance silicon-based anode materials. According to the "small test and scale-up experiment", the technical indicators of the product have reached the international leading level, and the research and development of this material will help improve the The energy density of lithium-ion batteries not only has obvious cost advantages, but also has a wide range of applications.
It is understood that Changhong New Energy Materials Laboratory has made important breakthroughs in the preparation technology of high-performance lithium titanate negative electrode materials. At the same time, the battery safety is greatly improved.
At present, lithium-ion batteries have been widely used, and the limitations of traditional electrode materials in terms of specific capacity, cycle life and safety have gradually become prominent, and the application of silicon-based anode materials can bring great energy density to batteries. At the same time, these problems can be better solved, but there are obstacles such as high technical barriers and high costs, which make it difficult to realize industrial production and application.
The researchers successfully developed the core technical route of in-situ polymerization + in-situ coating through the exploration and optimization of the composite process of silicon-based anode materials, and took the lead in proposing the in-situ coating of multi-level protective layers to solve the first problem of silicon-based anode materials. Structural disadvantages such as low efficiency and obvious volume expansion.
At present, Changhong New Energy Materials Laboratory has completed the development of silicon-based anode series products with a capacity of 800~1200 mAh/g and above 1200 mAh/g. Its first efficiency (>90%), cycle life, volume expansion and other technologies The indicators have reached the international leading level, which can meet the needs of high energy density, long battery life and high capacity of lithium-ion batteries, and will be widely used in digital products, electric vehicles and other fields in the future.
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