Huawei hat einen Durchbruch bei der Ausrüstung für Graphenbatterien und Lithium-Ionen-Batterien erzielt
25 Okt 2022
The Watt Laboratory of Huawei Central Research Institute announced that it had achieved a major research breakthrough in the field of lithium ion batteries: it launched the first high-temperature long-life graphene based lithium ion battery in the industry.
The experimental results show that the new high-temperature technology based on graphene can increase the upper limit service temperature of lithium ion batteries by 10 ℃, and the service life is twice that of ordinary lithium ion batteries.
As early as two years ago, Ren Zhengfei, the founder of Huawei, said in an interview with Netease Technology and other media that a technological revolution would break out in the next 10-20 years. The biggest subversive event in this era is the era of graphene replacing the era of silicon. Ren Zhengfei's explanation for why he is so optimistic about graphene is that the chip has a limit width, the limit of silicon is seven nanometers, which is close to the border, and graphite has begun to touch the forefront of the technological revolution.(Lithium - Ion Battery Equipment)
The current lithium electronic battery can no longer meet the needs of smart phones, and the endurance needs to be broken through; And electric vehicles represented by Tesla are expanding the demand for lithium ion batteries.
As early as 2015, Huawei announced that it would cooperate with the University of Manchester to study the application of graphene and jointly develop the next generation high-performance technology in the ICT field. The cooperation period of this project is initially set as two years to study how to apply the breakthrough achievements in graphene field to consumer electronic products and mobile communication equipment.
This time, Huawei Central Research Institute Watt Lab made a breakthrough in graphene based high-temperature lithium ion battery technology. According to Dr. Li Yangxing, the chief scientist of Huawei Watt Laboratory, breakthroughs come from three aspects: adding special additives to the electrolyte to remove trace water and prevent the electrolyte from high-temperature decomposition; The modified large single crystal ternary material is selected as the positive pole of the battery to improve the thermal stability of the material; At the same time, graphene, a new material, can realize efficient heat dissipation between lithium ion batteries and the environment.
"The charge discharge test under high temperature environment shows that under the same working parameters, the temperature rise of the graphene based high-temperature lithium-ion battery is 5 ℃ lower than that of ordinary lithium-ion batteries; the capacity retention rate is still more than 70% after 2000 cycles at 60 ° C; the capacity loss is less than 13% after 200 days of storage at 60 ° C," said Dr. Li Yangxing.
This research result will bring innovation to the energy storage service of the communication base station. The service life of the external base station using the high-temperature lithium ion battery in hot areas can reach more than 4 years. The graphene based lithium-ion battery will also help electric vehicles to last in high temperature environments, as well as the safe flight of unmanned aerial vehicles under high temperature heating.
Last year, Huawei Watt Lab announced the rapid charging technology that can charge 48% of 3000mAh batteries in 5 minutes at the 56th Battery Symposium Japan, which attracted extensive attention in the industry. According to Dr. Li Yangxing, Huawei's fast charging battery has been commercially available and will officially release its super fast charging mobile phone at the end of December this year.
The experimental results show that the new high-temperature technology based on graphene can increase the upper limit service temperature of lithium ion batteries by 10 ℃, and the service life is twice that of ordinary lithium ion batteries.
As early as two years ago, Ren Zhengfei, the founder of Huawei, said in an interview with Netease Technology and other media that a technological revolution would break out in the next 10-20 years. The biggest subversive event in this era is the era of graphene replacing the era of silicon. Ren Zhengfei's explanation for why he is so optimistic about graphene is that the chip has a limit width, the limit of silicon is seven nanometers, which is close to the border, and graphite has begun to touch the forefront of the technological revolution.(Lithium - Ion Battery Equipment)
The current lithium electronic battery can no longer meet the needs of smart phones, and the endurance needs to be broken through; And electric vehicles represented by Tesla are expanding the demand for lithium ion batteries.
As early as 2015, Huawei announced that it would cooperate with the University of Manchester to study the application of graphene and jointly develop the next generation high-performance technology in the ICT field. The cooperation period of this project is initially set as two years to study how to apply the breakthrough achievements in graphene field to consumer electronic products and mobile communication equipment.
This time, Huawei Central Research Institute Watt Lab made a breakthrough in graphene based high-temperature lithium ion battery technology. According to Dr. Li Yangxing, the chief scientist of Huawei Watt Laboratory, breakthroughs come from three aspects: adding special additives to the electrolyte to remove trace water and prevent the electrolyte from high-temperature decomposition; The modified large single crystal ternary material is selected as the positive pole of the battery to improve the thermal stability of the material; At the same time, graphene, a new material, can realize efficient heat dissipation between lithium ion batteries and the environment.
"The charge discharge test under high temperature environment shows that under the same working parameters, the temperature rise of the graphene based high-temperature lithium-ion battery is 5 ℃ lower than that of ordinary lithium-ion batteries; the capacity retention rate is still more than 70% after 2000 cycles at 60 ° C; the capacity loss is less than 13% after 200 days of storage at 60 ° C," said Dr. Li Yangxing.
This research result will bring innovation to the energy storage service of the communication base station. The service life of the external base station using the high-temperature lithium ion battery in hot areas can reach more than 4 years. The graphene based lithium-ion battery will also help electric vehicles to last in high temperature environments, as well as the safe flight of unmanned aerial vehicles under high temperature heating.
Last year, Huawei Watt Lab announced the rapid charging technology that can charge 48% of 3000mAh batteries in 5 minutes at the 56th Battery Symposium Japan, which attracted extensive attention in the industry. According to Dr. Li Yangxing, Huawei's fast charging battery has been commercially available and will officially release its super fast charging mobile phone at the end of December this year.
