A few days ago, Markus Niederberger, a professor at the Materials Department of the Swiss Federal Institute of Technology in Zurich, introduced a flexible lithium-ion battery that can be stretched and bent in the academic journal "Advanced Materials". The academic journal "Chemical Newsletter" also recently published the latest research results of the Johns Hopkins University Applied Physics Laboratory in the United States-a flexible lithium battery based on a polymer system. The energy density of this lithium battery is higher than before. It has been greatly improved and is expected to be used in a more diversified energy storage system.
Scientific research results are endless, what is a flexible lithium battery? Will flexible lithium batteries become an emerging force in the battery field in the future?
In fact, as one of the most important energy storage systems in the contemporary era, lithium batteries have experienced nearly half a century since their advent, and they have recently won the Nobel Prize in Chemistry this year. From flammable and explosive instability, to the application of various electronic devices, traditional lithium batteries have entered everyone's life. Some industry experts believe that 2019 will be the "first year of flexible display". With the current popular folding mobile phone market, flexible batteries that provide energy for flexible displays have also become the focus of attention. As a kind of flexible battery, the flexible lithium battery has also gone from the laboratory to the public.
"So far," flexibility "has no precise definition." Flexibility "can mean either bendable, or stretchable or compressible." Zhao Jingwen, associate researcher at the Qingdao Institute of Bioenergy and Processes, Chinese Academy of Sciences, told reporters. "Lithium batteries made by traditional processes are thin enough to be flexible, and true" flexibility "means that the electrodes, electrolytes and various battery components in the battery system are Flexible materials, like a piece of plasticine, are foldable and stretchable, and can be 'pinched' into any shape required for the application. "
The safety of commercial lithium batteries has always been the focus of attention in the industry. The liquid electrolyte of the traditional lithium battery may cause a short circuit of the battery when it is hit, and the flexible lithium battery overcomes this shortcoming of the traditional lithium battery from the material. The battery components can change the shape without flowing like water. , Which makes the safety of flexible lithium batteries greatly improved. Industry insiders pointed out that lithium batteries are now the preferred energy storage tool for portable electronic products, electric vehicles, and energy storage on the grid side, and the progress in safety marks a major change in the way lithium-ion batteries are manufactured and used in electronic equipment.
As early as May this year, a market research report pointed out that in the next few years, wearable devices are expected to be widely used in medical, aerospace, IoT sensing or tracking and other scientific and technological fields. By 2024, wearable devices worldwide Market revenue is expected to reach 100 billion US dollars, and flexible batteries as a part of the energy supply of wearable devices have huge market potential.
Lv Lishun, senior research manager of Jibang Consulting, told reporters that as far as the current market is concerned, some flexible battery products have entered the stage of small batch production, and their applications are mainly concentrated in thin products such as foldable electronic displays. "But to be truly widely used in the market, flexible lithium batteries still need to break through the technical shortcomings of energy density, thickness and bending angle. If a technical breakthrough can be made, the application of flexible lithium batteries will include folding mobile phones and tablets Everyday electronic consumer products, such as computers, extend to more innovative applications. "Lu Lishun said.
Despite the many innovative advantages of flexible lithium batteries, existing data shows that the energy density of flexible lithium batteries is far less than the battery systems that are now commercialized. An anonymous person in the lithium battery industry pointed out that to gain a place in the traditional lithium battery market, flexible lithium batteries as energy storage devices must first pass the "energy density" level.
"How to load the electrode material on the electrode, and how to ensure continuous contact between the electrolyte and the electrode when bending the battery, these issues are the focus of the field of flexible battery research." Zhao Jingwen said.
At the same time, Zhao Jingwen also said: "The technological progress of flexible lithium batteries complements their application scenarios. At present, smaller flexible batteries have been able to effectively drive small electronic components. If the flexibility of batteries is further developed, the development of flexible electronic components will also be able to There is more room for innovation. "(â– Our reporter Li Limin)
Electronic Sample Impact Notch Machine
Electronic Sample Impact Notch Machine,Electronic Notch Machine,Notch Prototyping Machine,V Notch Sample Machine
Dongguan Best Instrument Technology Co., Ltd , https://www.best-tester.com