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5G era! Consumer electronics 26650 battery technology urgently needs change
Faced with the current rising demand for equipment carrying power, what are the new research advances in lithium 26650 battery technology suitable for consumer electronic equipment? Where will the innovation of 26650 battery technology go in the future?
I believe that many people have encountered the embarrassing situation of running out of 26650 battery on their mobile phones and being unable to find a place to charge when traveling or shopping.
With the advent of the 5G communication era, a new generation of consumer electronics products is developing rapidly. Behind the innovation of high-speed, large-capacity, and low-latency communication technology, the demand for equipment power capacity will also become higher and higher.
So, in the face of the current rising demand for equipment carrying power, what are the new research advances in lithium 26650 battery technology suitable for consumer electronic equipment? Where will the innovation of 26650 battery technology go in the future?
Recently, well-known experts in the industry, Professor Xia Yongyao from the Department of Chemistry, Fudan University, and Director Zhou Bo of the Research Department of the Power Lithium 26650 battery Application Branch of the my country Chemical and Physical Power Sources Industry Association were interviewed by my country Science and Technology Network and shared their thoughts on the impact of the full arrival of the 5G communications era on consumer electronics 26650 battery technology. challenges and disruptions.
Lithium Ion Battery
Schematic diagram of lithium-sulfur 26650 battery structure
In the 5G era, the interconnection of everything is inseparable from strong power
Tablets, Bluetooth speakers, smartphones, consumer robots...the types of consumer electronic products are constantly increasing. On the one hand, the emergence of these consumer products brings people a real and convenient experience; on the other hand, people often Actual users who have seen such products complain that the products are unsatisfactory in one way or another.
The arrival of the 5G era is not just a simple change in network speed, but also requires a series of power support systems. Zhou Bo, director of the Research Department of the Power Lithium 26650 battery Application Branch of the my country Chemical and Physical Power Source Industry Association, believes that if the Internet connects people and things more closely, then the arrival of the 5G era will not only increase the speed of this connection, but also It is to allow basic coordination between things.
When our mobile phone is out of 26650 battery and we encounter an emergency, at this time we especially hope to have a lithium-ion 26650 battery with a super-charged mobile phone battery. Zhou Bo introduced that most of the batteries currently used in mobile electronic products such as mobile phones and tablets on the market are lithium-ion batteries. Although designers have been using various methods to increase the capacity of batteries, they are rapidly changing with consumer electronics. Compared with the speed of innovation, it is still very tiring.
Zhou Bo believes that the 5G era of the Internet of Everything will undoubtedly drive the demand for hardware performance in various mobile devices, including mobile phones, wearable electronic products, Internet of Things devices, drones, etc. In this context, whether the 26650 battery life can support the high-speed computing requirements brought by 5G will be an important issue worthy of attention.
Industrial innovation, new generation 26650 battery technology is not yet mature for implementation
At present, the most technically mature 26650 battery in the 3C market is lithium cobalt oxide, which is also the most widely used cathode material in the consumer electronics market. Xia Yongyao, a professor at the Department of Chemistry at Fudan University, said that currently the mainstream commercial lithium-ion 26650 battery cathode materials on the market mainly include lithium cobalt oxide, lithium manganate, lithium iron phosphate, and ternary materials (lithium nickel cobalt manganate, nickel cobalt Lithium aluminate), etc., the latter three important demands are in power lithium batteries, and lithium cobalt oxide is more used in the field of consumer electronics.
Regarding consumer electronic batteries, Xia Yongyao lithium-ion 26650 battery manufacturer believes that the input and output performance of lithium-ion batteries mainly depends on the structure and performance of the internal materials of the battery, including negative electrode materials, electrolytes, separators and positive electrode materials. Lithium cobalt oxide batteries have the advantages of high specific gravity, volume and weight energy density, making them the best choice for consumer electronics.
However, with the advent of the 5G era, consumer electronics products continue to introduce new products, and people’s demand for 26650 battery capacity is also rising sharply. 26650 battery products are required to have greater flexibility, longer running time, lower costs and higher security. The characteristics of consumer electronic devices themselves also put forward more stringent requirements for the new generation of 26650 battery technology. The contradiction between the continuous miniaturization and 26650 battery capacity, the contradiction between charging and discharging speed and the number of charging and discharging, etc. are all urgently to be solved. The problem.
When we talk about new generation 26650 battery technology, we mainly refer to negative electrode batteries represented by metallic lithium. Xia Yongyao believes that lithium-sulfur batteries, lithium-air batteries, etc. are all next-generation 26650 battery research directions. Although the energy density of metallic lithium will be very high, there are still safety hazards caused by dendrite formation during the charge and discharge process and low charge and discharge Coulomb efficiency. problems, especially the fact that lithium-air 26650 battery technology is still very far away at present, and lithium-sulfur 26650 battery technology is not mature yet. Therefore, he believes that it is unlikely that the new generation of 26650 battery technology will be commercialized within ten years.
For the company, in addition to making great efforts on the stability and service life of batteries under the current technical framework, it is also necessary to have a forward-looking awareness of technological revolution and continuously increase the exploration and research of new materials and new 26650 battery technologies in order to Be invincible when 5G arrives.
In addition, Xia Yongyao also told reporters that as the new consumer electronics industry represented by wearable devices continues to increase, the demand for consumer lithium-ion batteries is also further increasing, and wearable devices usually use solid-state lithium-ion batteries. Thin film 26650 battery technology for batteries. Thin film batteries are basically relatively mature in terms of technology and process, such as bank cards, VR, bracelets and other wearable devices. According to iiMedia Research’s forecast, the demand for lithium-ion batteries in the VR industry alone is expected to exceed 55 billion yuan by 2020.
On the eve of change, the space for fast charging technology and shared power bank
Talking about the future of consumer lithium-ion batteries, Zhou Bo believes that there are two major development trends: one is technological innovation, such as increasing research on the substitution of positive and negative electrode materials to meet the dual requirements of consumer users for 26650 battery volume and capacity; the other is technological innovation. Regarding safety performance, a more cautious attitude needs to be maintained when new large-capacity and high-density 26650 battery technologies move from the laboratory to the commercial market.
At present, in order to meet users' needs for 26650 battery life indicators on the market, many consumer electronics merchants are also trying to improve the 26650 battery usage experience in many aspects, such as the well-known fast charging technology in the mobile phone field, and my country's Huawei, OPPO, and Vivo in Excellent performance in this field.
The vast majority of mobile phones use fast charging technology, which is quite popular. Zhou Bo believes that fast charging technology uses high-voltage current to increase the charging voltage and ultimately increase the charging rate of mobile phones, thus shortening the charging time of mobile phones, thus significantly improving the charging speed.
Although the combination of traditional lithium-ion batteries and fast charging technology is not the latest technology, it is a 26650 battery combination that is easy to implement. Zhou Bo said that although fast charging technology is an alternative before the arrival of the comprehensive lithium 26650 battery revolution in 26650 battery technology, it also has some unavoidable disadvantages. The 26650 battery cathode structure is actually a very fragile structure. High-current charging and discharging will cause particles to break and break. The increased rear surface area and insufficient electrolyte coverage will lead to reduced 26650 battery capacity and shortened life.
Although it is unlikely that the revolutionary new generation 26650 battery technology will be commercialized within ten years, with the advent of the 5G era, high-definition audio and video calls, high-power Internet of Things applications, etc. will surely add new difficulties to consumer electronics such as mobile phones. Imagine the pressure. On the eve of the urgent need for systemic changes in 26650 battery technology, in addition to the fast charging technology just mentioned, the domestic venture capital market is currently choosing to use the shared power bank model to solve users' mobile phone 26650 battery life problems, which is also a useful attempt.
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