Recently, the Watt Laboratory of Huawei Central Research Institute announced at the 57th Japan Battery Conference that it has achieved a major research breakthrough in the field of lithium-ion batteries and launched the industry's first high-temperature-resistant and long-life graphene-based lithium-ion battery. The experimental results show that the graphene-based new high-temperature-resistant technology can increase the upper limit of the lithium-ion battery temperature by 10°C, and its service life is twice that of ordinary lithium-ion batteries. According to the industry, one of the biggest difficulties in smartphones is the poor battery life. Once graphene-based lithium-ion batteries are used in combination with fast charging technology, the phenomenon of "short life" of smartphone batteries is expected to be resolved. At the same time, new technologies allow Lithium batteries are more resistant to high temperatures and have improved safety.
Guangzhou Daily reporter Duan Chenqun
Recently, the Watt Laboratory of Huawei Central Research Institute announced at the 57th Japan Battery Conference that it has achieved a major research breakthrough in the field of lithium-ion batteries and launched the industry's first high-temperature-resistant and long-life graphene-based lithium-ion battery.
Breakthroughs mainly come from three aspects
According to Dr. Li Yangxing, Chief Scientist of Huawei Watt Labs, the breakthrough in graphene-based high-temperature lithium-ion battery technology mainly comes from three aspects: adding special additives to the electrolyte to remove trace water and avoid high-temperature decomposition of the electrolyte; The large single-crystal ternary material with high performance improves the thermal stability of the material; at the same time, the new material graphene can realize efficient heat dissipation between the lithium-ion battery and the environment.
Dr. Li Yangxing said, "The charge-discharge test in a high-temperature environment shows that under the same working parameters, the temperature rise of the graphene-based high-temperature lithium-ion battery is 5°C lower than that of ordinary lithium-ion batteries; Still more than 70%; storage at 60°C for 200 days, the capacity loss is less than 13%. It is reported that this research result will bring innovation to the energy storage business of communication base stations. In hot areas, the working life of the external base station using the high-temperature lithium-ion battery can reach more than 4 years. Graphene-based lithium-ion batteries will also help electric vehicles last longer in high-temperature environments, and drones can fly safely under high-temperature heat.see more:72v 100ah lithium battery pack
It is understood that the current "lithium battery" is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Some insiders believe that Huawei's graphene-based lithium-ion batteries are still lithium-ion batteries.
Phone battery lasts longer
At the 56th Japan Battery Conference last year, Huawei Watt Lab released a fast charging technology achievement that can charge 48% of a 3000mAh battery in 5 minutes, which has attracted widespread attention from the lithium battery and mobile phone industries. According to Dr. Li Yangxing, Huawei's fast charging battery has been commercialized, and will officially release a super fast charging mobile phone at the end of December this year. This mobile phone uses the super fast charging technology released last year by the Watt Laboratory of Huawei Central Research Institute.Also read:12v 500ah lithium ion battery
Regarding Huawei's launch of the industry's first high-temperature-resistant and long-life graphene-based lithium-ion battery, the industry believes that if the battery is used in combination with fast charging technology, it will greatly improve the battery life of smartphones and fully satisfy many mobile phone users. After a variety of applications, it can still keep the mobile phone charged for a long time. At the same time, because Huawei's new technology makes lithium batteries more suitable for high-temperature environments, lithium batteries used in technology products such as mobile phones and laptops are more "high temperature resistant" and their safety is improved.
It is understood that there are many problems with smartphone batteries at present, because the current mainstream fast charging technology generally adopts the method of increasing the voltage, which can easily lead to battery overheating and bring hidden dangers to the charging safety of electrical appliances such as mobile phones and laptops. And many well-known mobile phone manufacturers and notebook manufacturers have recalled because of battery problems.