Huawei obtains new patent for 18650 battery 3.7v 2000mah invention High energy density silicon-based material system brings ultra-high-speed charging technology

　　The pace of development of the times has never stopped. The arrival of smart phones has enriched our lives, but mobile phone batteries are a headache. We have to charge them several times a day, making it insecure to go out.

　　As we all know, battery life is the Sword of Damocles that hangs on smartphones. Among the many features of smartphones that provide a high-quality user experience, battery life is one of the weakest. Mobile phone manufacturers have mainly solved this problem in two ways: either adding fast charging functions; or increasing battery charging density.

　　The China State Intellectual Property Office recently announced a 18650 battery 3.7v 2000mah invention patent from Huawei. The patent describes a new negative active material for lithium-ion secondary batteries, which is a combination of the above two solutions. Huawei has introduced a high-energy-density silicon-based material system into battery materials, and through innovative technology of heteroatom-doped silicon-based materials, it provides a fast channel for the migration of lithium ions during the charging process, greatly increasing the battery's fast charging capability.

　　According to analysis by industry experts, the significance of Huawei's choice of silicon material in lithium-ion batteries is that its lithium insertion capacity is much higher than that of traditional graphite anodes. This means it can lock in more energy, increasing the energy density of lithium-ion batteries.

　　Nitrogen-doped carbon materials can be used to bind lithium-embedded expanded silicon materials. Nitrogen atoms and carbon atoms are combined in the form of pyridine nitrogen, graphitic nitrogen, and pyrrole nitrogen to form a stable three-dimensional carbon skeleton network, inhibiting high-capacity silicon material; in addition, nitrogen-doped carbon mesh can improve the overall conductivity of the silicon-containing material/nitrogen-doped carbon material composite material, add space and channels for physical rapid lithium storage, break through the limit of chemical lithium storage, and greatly improve battery charging. current limit.

　　If this hypothesis is true, then this patented technology is likely to be a new iteration of Honor Magic battery. This is also an improved version of the ultra-high-speed charging technology demonstrated by Huawei at the 56th Battery Symposium in Nagoya, Japan. Just as multi-touch technology changes the form of mobile phones, Huawei's ultra-high-speed charging technology will redefine the way people use smartphones and free users from "mobile phone power anxiety."

　　It is worth mentioning that Huawei’s ultra-high-speed charging technology also has applications beyond consumer electronics. For example, it can power electric vehicles in the form of a battery pack. So will Huawei further expand its business in the future? Huawei has not responded to this yet, but technically we can see that although the research and development costs of batteries are high, it will also bring higher returns in the future.

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