With the development of mobile communication technology, mobile phones have become an indispensable communication tool in people's daily life. However, as the functions of mobile phones become more and more abundant, the power consumption also increases, and the standby time of mobile phone batteries also becomes shorter and shorter. The charging time of the mobile phone is relatively long and generally takes several hours. Therefore, the problem of mobile phone charging becomes one of the most troublesome questions for consumers. For many manufacturers, the battery has also become one of the obstacles to the development of their mobile phones.
At present, mobile phone batteries generally use lithium batteries and nickel-cadmium batteries. Since the nickel-cadmium battery has a serious memory effect, and the energy volume ratio is also small, it gradually replaced the lithium battery with better performance. In recent years, as the price of lithium batteries has fallen, the trend of replacing nickel-chromium batteries has become increasingly apparent. However, as a whole, these two types of batteries have inherent drawbacks due to their own batteries, such as high current charging can damage the battery, and waste batteries have environmental pollution.
According to analysis by the Industry Research Institute of Foresight Industry Research Institute of "2014-2018 China's super capacitor industry development prospects and investment strategic planning analysis report" analysis, super capacitors can solve the problem of slow cell phone battery charging, environmental pollution and other issues, will become an important alternative to mobile phone power supply in the future .
Super capacitor is a new type of energy storage device. It has the characteristics of short charging time, long service life, good temperature characteristics, energy saving and environmental protection, etc. It is called “green energy”. Compared with lithium batteries, supercapacitors have a fast charging speed, and can reach 95% or more of their rated capacity within 10 seconds to 10 minutes of charging. With long charging life, they can be repeatedly charged and discharged up to several hundred thousand times, and charge and discharge speeds are fast. No pollution, long cycle life. Since the electric energy contained in the equal volume supercapacitor is close to the capacity of the lithium battery, the supercapacitor can be used as an independent power source.
Earlier this year, American scientists developed a supercapacitor based on graphene materials. Its charging rate is much higher than that of ordinary batteries. For example, it takes only 5 seconds for an iPhone to be fully charged, causing widespread public opinion. In May, another media reported that a cell phone super-capacitor device invented by a 18-year-old girl in the United States can complete a charge in 20 to 30 seconds and can be charged 10,000 times. At present, some domestic institutions are also researching and developing. It is believed that with the growing maturity of supercapacitor technology, capacitor batteries will become a major direction for mobile phone power supply development.
According to data released by the Industry Research Institute of Forward-looking Industry Research Institute of "2014-2018 China's super capacitor industry development prospects forecast and investment strategic planning analysis" data show that China is currently the world's largest smart phone "smart phone consumer countries, China's smart phone in 2012"> There are 224 million smart phone shipments, accounting for 26.5% of the global market. China's smart phone penetration rate has surpassed that of the United States and the United Kingdom. At present, China's smart phone industry is still in a stage of development and will continue to develop in the future. Therefore, if the technology matures, supercapacitors can become a substitute for traditional mobile phone power products, then the market for ultracapacitors in the mobile phone market will be incalculable.
